This Privacy Policy explains how personal data is processed in all mobile apps published under the ProxApp brand on Google Play and the Apple App Store, and on the proxapp.com.tr website. Please read it before using our apps.
1. Data controller
The developer of the apps and the data controller under the Turkish Personal Data Protection Law No. 6698 (KVKK) and the EU General Data Protection Regulation (GDPR) is Gencay Tosun (ProxApp, Türkiye). In this policy, "we" and "our" refer to the data controller; "you" refers to the person using the apps or the website.
Contact: gencaytosun@hotmail.com
2. Our principles
- Device first: Our calculator, catalog and logbook apps keep your data only on your device. What you enter in these apps never reaches us.
- Only what is needed: We process only the data a feature needs to work.
- No selling: We never sell or rent your personal data.
- Transparent ads: In ad-supported apps we ask for your consent before showing personalized ads; if you decline, only non-personalized ads are shown.
- You are in control: In apps that require an account, you can delete your account and data from within the app.
3. Data processed by each app
Below you will find, for each app, which data it processes, with whom it is shared, and a summary of its store data disclosures.
ISO 286 Tolerance Hole & Shaft
Calculations run entirely on your device; no account is needed. The free version shows Google AdMob ads on Android and iOS; ads are removed in the Pro version.
Data processed
- Sizes, tolerance classes and results you enter are processed only on your device.
- PDF reports and the company logo you add stay on your device and are only sent if you choose to share them through the system share sheet.
- Language and theme preferences are stored on your device.
- Free version: Google AdMob processes the advertising ID and device information, ad interactions and crash data to show and measure ads. This data is not linked to your identity. On iOS, the advertising identifier is only used if you allow tracking in the app's tracking prompt. In the European Economic Area, the United Kingdom and Switzerland, a consent form is shown before ads.
- Pro version: Purchases are made through Google Play or Apple (a yearly subscription on iOS). We never see your payment details; the app only checks whether Pro is active. No ads are shown while Pro is active.
Sharing: In the free version, advertising data is shared with Google AdMob. Google Play or Apple processes the Pro payment. Your calculations and reports are not sent to us.
Store data disclosure: Google Play: Device or other IDs, app interactions, crash logs and diagnostics are collected for advertising and analytics and shared with Google AdMob. App Store: Data Used to Track You – Identifiers (Device ID), Usage Data (Advertising Data); Data Not Linked to You – Diagnostics (Crash Data).
Engineering Catalog
Catalog and calculations run on the device. The free version shows ads via Google AdMob.
Data processed
- Inputs, results and PDF, DXF and STL outputs are generated only on your device.
- To show ads, Google AdMob processes the advertising ID (Android Advertising ID / Apple IDFA, if you allow it), approximate location derived from the IP address, device and app information, ad interactions, and crash and diagnostic data.
Sharing: Google AdMob (Google LLC) – for advertising, measurement and fraud prevention.
Store data disclosure: Google Play: Collected and shared – Device or other IDs, Approximate location, App interactions, Crash logs and Diagnostics (Advertising or marketing, Analytics, Fraud prevention). App Store: Data Used to Track You – Identifiers (only with ATT permission); Data Not Linked to You – Coarse Location, Product Interaction, Advertising Data, Crash Data, Performance Data.
Bearing Catalog
The catalog and calculations run on the device and no account is needed. The free version shows ads via Google AdMob, and Google Firebase collects anonymous usage and crash data. On iOS, the yearly Pro subscription removes ads and enables offline use.
Data processed
- Your searches, favorites, maintenance records and results are stored only on your device. The home screen widget reads its data from your device.
- PDF data sheets and the logo you add are created on your device and are only sent if you share them. Only the image you pick as a logo is read from your photos.
- Free version: to serve and measure ads and prevent fraud, Google AdMob processes device and app information, approximate location derived from the IP address, ad interactions and diagnostic data. On iOS the app does not ask for tracking permission (ATT) and does not access the advertising identifier (IDFA); on Android the advertising ID may be used. In the European Economic Area, the UK and Switzerland a consent form is shown before ads.
- Google Firebase (Analytics, Crashlytics, Performance Monitoring) collects anonymous usage statistics (including subscription purchase events), crash reports and performance metrics. This data is not linked to your identity and is not used for advertising.
- Maintenance reminders are local notifications scheduled on your device and are not sent to us.
- Pro (iOS, yearly subscription): Apple processes the payment; we never see your payment details. The subscription status is verified only on your device. While Pro is active no ads are shown and the app also works offline; in the free version, bearing details and calculations require an internet connection.
Sharing: Google AdMob and Google Firebase (Google LLC) – for advertising, measurement, analytics and crash reporting. Apple processes Pro payments. Your searches and records are not sent to us.
Store data disclosure: Google Play: Collected and shared – Device or other IDs, Approximate location, App interactions, Crash logs and Diagnostics (Advertising or marketing, Analytics). App Store: Data Not Linked to You – Coarse Location, Identifiers (Device ID), Purchases (Purchase History), Usage Data (Product Interaction, Advertising Data), Diagnostics (Crash Data, Performance Data). Data Used to Track You: None.
Engineering Torque Calculator
Runs entirely on your device. No account, ads or analytics.
Data processed
- Force, size, power and speed values you enter and the results are processed only on your device.
- Language and unit preferences are stored on your device.
Sharing: No data is sent to us or to third parties.
Store data disclosure: Google Play: No data collected, no data shared. App Store: Data Not Collected.
Sossial
A messaging and CAD file viewing app for engineers. It is for users aged 18 and over and requires an account; there are no ads and no tracking, and data is processed to provide the service.
Data processed
- Account: name, email address, password (stored only as a hash by Firebase Authentication) or Google / Apple sign-in details, user ID. Your email address is never shown to other users.
- Profile: optional title, city, country, short bio and profile photo.
- Messages: text and files you send in one-to-one and group chats. Messages and chat files are permanently deleted from the server 7 days after they are sent.
- Notifications: Firebase Cloud Messaging / Apple Push Notification service token. Notifications never contain message content.
- Technical: app language, delivered and read status of messages.
- Access records: when you open the app, your account ID, IP address, date and time and device type. Kept for 1 year because Turkish Law No. 5651 requires hosting providers to retain traffic data; they are not deleted before then even if you delete your account, and are shared only with competent authorities on a lawful request.
- Usage statistics: only daily totals that are not linked to any person (such as the number of messages, files and sign-ups) are kept; they contain no account, chat or file information.
- Safety and moderation: reports, blocks and moderation decisions. For message reports, only a short excerpt of the reported message is sent to the moderator; the moderator cannot read other messages.
- File conversion: DWG and some office/CAD files are sent over an encrypted connection to our conversion server to be made viewable; the server keeps the file only while converting and deletes it when done.
- Files opened on your device: files you view with the Open file feature are not uploaded to us.
Sharing: Data is never sold or used for advertising. Service providers: Google Firebase (authentication, database, file storage, notifications), Apple (APNs, Sign in with Apple), BirSunucum (conversion server in Türkiye). Only your friends, people you chat with, people you have a pending friend request with and whoever your search setting allows can see the name, title, city and photo on your profile; only the members of a chat can read its messages. Only someone who knows your exact email address can find you in search.
Store data disclosure: Google Play: Collected – Name, Email address, User IDs, Photos, Videos, Music files, Files and docs, Other in-app messages, Other user-generated content (App functionality, Security). Shared: None. Encrypted in transit; deletion requests supported. App Store: Data Linked to You – Contact Info (Name, Email Address), User Content (Photos or Videos, Audio Data, Emails or Text Messages – in-app chat, Other User Content), Identifiers (User ID). Data Used to Track You: None.
Air Duct Takeoff
Projects are stored on the device. No account, ads or analytics.
Data processed
- Projects, sections, dimensions, prices, company details and logo are stored only on your device.
- PDF reports and backup files are created on your device; you decide where to save them and whom to share them with.
Sharing: No data is sent to us or to third parties.
Store data disclosure: Google Play: No data collected, no data shared. App Store: Data Not Collected.
Scientific Calculator
Calculations run on the device. The AI solver sends the image to the AI provider only when you ask. The free version shows ads.
Data processed
- Calculation history, theme and language preferences are stored on your device.
- AI camera solver: when you tap Solve, the cropped question image and recognized text are sent to the Google Gemini API (Google LLC) to produce a solution. The feature asks for your explicit permission on first use; images are not stored on our servers and are not used for model training. Camera and gallery access is used only for this feature.
- The number of AI solutions earned through rewarded ads is stored on your device.
- To show ads, Google AdMob processes the advertising ID (if you allow it), approximate location, device and app information, ad interactions, and crash and diagnostic data.
Sharing: Google Gemini API (only when you use the AI solver), Google AdMob (advertising, measurement, fraud prevention).
Store data disclosure: Google Play: Collected and shared – Photos (optional, App functionality), Device or other IDs, Approximate location, App interactions, Crash logs, Diagnostics (Advertising, Analytics, Fraud prevention). App Store: Data Not Linked to You – User Content (Photos), Coarse Location, Product Interaction, Advertising Data, Crash Data, Performance Data; Data Used to Track You – Identifiers (only with ATT permission).
Energy Maintenance Report
A team app; accounts and work logs are stored in the cloud. No ads.
Data processed
- Account: username, display name, password (stored as a hash), user ID, your group and role (supervisor / staff).
- Work logs: job type, location or equipment, status, duration, fixed jobs and quantities, date, and coworkers you tag.
- Group settings: locations, job types, statuses and invite code.
- Crash reports: Firebase Crashlytics crash logs and diagnostic data.
Sharing: Data is never sold. Service provider: Google Firebase (authentication, database, crash reports). The supervisor of your group sees the team's work logs and can create PDF/Excel reports; reports are generated on the device.
Store data disclosure: Google Play: Collected – Name, User IDs, Other user-generated content, Other actions, Crash logs, Diagnostics (App functionality). Shared: None. Encrypted in transit; deletion supported. App Store: Data Linked to You – Contact Info (Name), User Content (Other User Content), Identifiers (User ID), Diagnostics (Crash Data).
Mesailerim
Records are stored on the device; no account needed. The free version shows ads; Premium is a one-time purchase.
Data processed
- Hours, leave, shifts, salary and calculator inputs are stored only on your device.
- Reminder notifications are scheduled on your device.
- Backup files are created on your device; you decide where to save them.
- Premium is purchased through Google Play Billing or the Apple App Store. We never see your payment details; the app only verifies the purchase status.
- In the free version, Google AdMob processes the advertising ID (if you allow it), approximate location, device and app information, ad interactions, and crash and diagnostic data. No ads are shown in Premium.
Sharing: Google AdMob (free version only), Google Play / Apple (purchases).
Store data disclosure: Google Play: Collected and shared – Device or other IDs, Approximate location, App interactions, Crash logs, Diagnostics (Advertising, Analytics, Fraud prevention); Purchase history (App functionality). App Store: Data Not Linked to You – Purchases, Coarse Location, Product Interaction, Advertising Data, Crash Data; Data Used to Track You – Identifiers (only with ATT permission).
Barber & Salon Manager
Salon data is stored on the device; no account needed. The free version shows ads.
Data processed
- Appointments, clients (name, phone, notes), staff (name, photo), services, income and expenses are stored only on your device.
- Contacts access is used only so you can pick a client's number; your contacts are never uploaded or copied.
- Appointment reminders are scheduled on your device.
- Backup (.zip) files are created on your device; you decide where to send them.
- In the free version, Google AdMob processes the advertising ID (if you allow it), approximate location, device and app information, ad interactions, and crash and diagnostic data.
- The salon owner who enters client information is the data controller for that information; this data never reaches us.
Sharing: Google AdMob (for ads only). Salon and client data is not shared with anyone.
Store data disclosure: Google Play: Collected and shared – Device or other IDs, Approximate location, App interactions, Crash logs, Diagnostics (Advertising, Analytics, Fraud prevention). App Store: Data Not Linked to You – Coarse Location, Product Interaction, Advertising Data, Crash Data; Data Used to Track You – Identifiers (only with ATT permission).
Edge Panel
Panels, contacts and clipboard history stay on the device. The free version shows ads.
Data processed
- The list of installed apps is read only on your device to build your panels and is never sent anywhere.
- Your favorite contacts (name, phone number) and smart clipboard history are stored only on your device; locked clipboard items are encrypted on the device.
- When you use the nearby places feature, your location is sent to the map provider (Google Maps Platform) to show results; we do not store it.
- ChatGPT and Gemini shortcuts open the respective app or website; Edge Panel sends them no data.
- The display-over-other-apps permission is used only to show the edge handle and panels.
- In the free version, Google AdMob processes the advertising ID (if you allow it), approximate location, device and app information, ad interactions, and crash and diagnostic data.
Sharing: Google Maps Platform (nearby places only), Google AdMob (ads).
Store data disclosure: Google Play: Collected – Precise and approximate location (optional, App functionality), Contacts (on device, not collected); Shared – Device or other IDs, App interactions, Crash logs, Diagnostics (Advertising, Analytics). App Store: Data Not Linked to You – Precise Location (nearby places), Coarse Location, Product Interaction, Advertising Data, Crash Data; Data Used to Track You – Identifiers (only with ATT permission).
Tofisan Order
Quote and order requests are forwarded to Tofisan İklimlendirme. No ads.
Data processed
- Account and profile: full name, company name, email, phone, address and details needed for invoicing.
- Cart, quote and order requests: products, quantities, notes and dates.
- PDF quotes are generated on your device.
- Crash reports: Firebase Crashlytics crash logs and diagnostic data.
Sharing: Your quote and order requests are forwarded to Tofisan İklimlendirme for processing; Tofisan is a separate data controller for those requests. Service provider: Google Firebase. Data is never sold or used for advertising.
Store data disclosure: Google Play: Collected and shared – Name, Email address, Address, Phone number (App functionality, Developer communications; forwarded to Tofisan), Purchase history (order requests), Crash logs, Diagnostics. App Store: Data Linked to You – Contact Info (Name, Email, Phone, Physical Address), Purchases (Purchase History), Identifiers (User ID), Diagnostics (Crash Data).
Smart Counter
Runs entirely on your device. No account, ads or analytics.
Data processed
- Your dhikrs and counter values are stored only on your device.
Sharing: No data is sent to us or to third parties.
Store data disclosure: Google Play: No data collected, no data shared. App Store: Data Not Collected.
4. Purposes and legal bases
| Purpose | Data | Legal basis (GDPR Art. 6 / KVKK Art. 5) |
|---|---|---|
| Creating accounts, signing in and providing the service (Sossial, Energy Maintenance Report, Tofisan Order) | Account, profile, content and log data | Performance of a contract |
| Delivering messages, posts and notifications | Content, messages, notification token | Performance of a contract |
| Security, abuse prevention and content moderation | Reports, blocks and technical records | Legitimate interests; legal obligation |
| Fixing app crashes | Crash logs, diagnostics | Legitimate interests |
| Personalized advertising | Advertising ID, approximate location, ad interactions | Consent (you can withdraw it at any time) |
| Non-personalized advertising and ad fraud prevention | Device information, approximate location | Legitimate interests |
| Solving problems with AI | Question image and text | Consent |
| Verifying in-app purchases | Purchase status | Performance of a contract |
| Answering support requests | Email address and correspondence | Legitimate interests; performance of a contract |
| Keeping Sossial access records (Turkish Law No. 5651, traffic data) | Account ID, IP address, date and time, device type | Legal obligation |
| Responding to legal requests and compliance | Relevant records | Legal obligation |
5. Third-party service providers
These providers process data on our behalf and under our instructions, or under their own policies. Each app uses only the providers listed in its section above.
| Provider | Use | Policy |
|---|---|---|
| Google Firebase (Authentication, Cloud Firestore, Cloud Storage, Cloud Messaging, Crashlytics) – Google LLC | Accounts, database, file storage, notifications, crash reports | firebase.google.com/support/privacy |
| Google AdMob – Google LLC | Showing and measuring ads | policies.google.com/technologies/ads |
| Google Gemini API – Google LLC | AI solutions in Scientific Calculator | ai.google.dev/gemini-api/terms |
| Google Maps Platform – Google LLC | Nearby places in Edge Panel | policies.google.com/privacy |
| Google Play Billing / Apple App Store | In-app purchases | Google, Apple |
| Apple Push Notification service, Sign in with Apple – Apple Inc. | iOS notifications and Apple sign-in | apple.com/legal/privacy |
| BirSunucum İnternet ve Bilişim Hizmetleri (Türkiye, Istanbul data center) | Sossial file conversion server and website hosting | birsunucum.com/kvkk-aydinlatma-metni |
| Tofisan İklimlendirme | Processing quote and order requests in Tofisan Order (separate data controller) | Tofisan İklimlendirme's own privacy notice |
Apart from these, your data is shared with competent public authorities only when legally required and only to the extent required.
6. Advertising and consent
Engineering Catalog, Scientific Calculator, Mesailerim (free version), Barber & Salon Manager, Edge Panel and ISO 286 Tolerance Hole & Shaft (without Pro) show ads through Google AdMob. Our other apps have no ads.
- European Economic Area, United Kingdom and Switzerland: On first launch we ask for your consent through Google's User Messaging Platform (UMP). You can change your choice at any time under "Privacy options" in the app settings.
- iOS: Before accessing the advertising identifier (IDFA), the app asks for permission through Apple's App Tracking Transparency (ATT). If you decline, no tracking takes place and non-personalized ads are shown.
- Android: You can delete or reset your advertising ID under Settings > Privacy > Ads on your device.
- Ad requests are not treated as directed to children, and ad content is limited to be suitable for a general audience.
7. AI features
The AI camera solver in Scientific Calculator sends the cropped question image and recognized text to the Google Gemini API only when you tap "Solve". On first use, the app clearly shows what data is sent and to whom, and asks for your permission. If you decline, the feature does not work; the rest of the app is unaffected. Images are not stored on our servers and are not used for model training. We recommend not including personal information (faces, names, IDs etc.) in question images.
8. Device permissions
Apps request a permission only when you use the related feature. You can revoke permissions at any time in your device settings.
- Camera and photos: for profile photos and sending photos in chats in Sossial, question photos in Scientific Calculator and staff photos in Barber & Salon Manager.
- Files: to open or save drawings, documents, backups and PDFs.
- Contacts: to pick a client number in Barber & Salon Manager and to show favorite contacts in Edge Panel. Your contacts are never uploaded to any server.
- Location: only for the nearby places feature in Edge Panel.
- Notifications: for Sossial message notifications and reminders in Barber & Salon Manager and Mesailerim.
- Display over other apps and installed apps (Android): only in Edge Panel, to show the edge panel and list app shortcuts. This information never leaves the device.
9. Retention
| Data | Period |
|---|---|
| Data stored on the device | Until you delete it or uninstall the app. It never reaches us. |
| Account, profile, content and messages (Sossial, Energy Maintenance Report, Tofisan Order) | While the account is active. Deleted within 30 days of a deletion request; purged from backups within 90 days. |
| Sossial chat messages and files shared in chats | Permanently deleted 7 days after they are sent. |
| Temporary files on the Sossial conversion server | Immediately after conversion; at most 24 hours. |
| Reports and moderation records | 1 year; longer only for the duration of legal proceedings. |
| Sossial access records (account ID, IP address, date and time, device type) | 1 year (Turkish Law No. 5651). They are not deleted before then even if you delete your account, and are shared only with competent authorities on a lawful request. |
| Crash reports (Firebase Crashlytics) | 90 days |
| Order requests forwarded to Tofisan | Subject to Tofisan İklimlendirme's commercial record-keeping obligations. |
| Support correspondence | 2 years after the request is closed |
| Web server access logs | 30 days |
10. International transfers
Some of our service providers have their servers outside Türkiye. Personal data sent to these providers is transferred abroad within the meaning of Article 9 of KVKK:
- Google LLC (Firebase, AdMob, Gemini API, Maps Platform): data centers in the United States and the European Union. Account, profile, message and file data in apps that require an account; advertising ID and device information in apps that show ads; questions and location queries you send when you use the related features.
- Apple Inc.: United States. iOS notification token and Sign in with Apple details.
These transfers are subject to Article 9 of KVKK and, for users in the EU, Chapter V of the GDPR. Data of EU users transferred to Google in the United States is covered by Google LLC's certification under the EU-U.S. Data Privacy Framework. To learn which safeguard a transfer relies on, write to gencaytosun@hotmail.com.
11. Security
- All connections between the apps and servers are encrypted with TLS (HTTPS).
- Passwords are never stored in plain text; they are kept as hashes by the authentication provider.
- Database access is restricted by security rules so that each user can reach only the data they are authorized to see.
- In Sossial, each user's email address, notification token and block list are kept in a separate record that only the account owner can read; notifications carry no message content.
- In Sossial, files shared in chats are stored encrypted with a key unique to each chat. The key is kept in a record only that chat's members can read, and files cannot be reached through public links. This is not end-to-end encryption: the key is also stored on Google Firebase infrastructure.
- In Sossial, your profile can be seen only by your friends, people you chat with, people you have a pending friend request with, and whoever your search setting allows. Whether you are online is not collected.
- Servers are accessible only to authorized personnel with key-based authentication.
No system is 100% secure. In the event of a data breach, we will notify affected individuals and the competent authorities within the time required by law.
12. Your rights
Under the GDPR you have the right to access, rectification, erasure, restriction of processing, data portability, to object to processing based on legitimate interests, and to withdraw consent at any time. You may lodge a complaint with the data protection authority in your country.
Under KVKK (Art. 11) you have the right to learn whether your data is processed, request information, learn the purpose of processing, know the third parties to whom data is transferred in Türkiye or abroad, request correction, deletion or destruction, request that these actions be notified to third parties, object to results against you arising from automated analysis, and claim compensation for damage caused by unlawful processing.
California (CCPA/CPRA): We do not sell your personal information and do not "share" it for cross-context behavioral advertising; in ad-supported apps you can turn off personalized ads from the in-app privacy options. You can exercise your rights to know, delete and correct through the contact below, and you will not be discriminated against for doing so.
Send your request to gencaytosun@hotmail.com with information that allows us to verify your identity. We respond free of charge within 30 days at the latest.
13. Account and data deletion
In apps that require an account, you can delete your account from within the app or send us a deletion request by email. The steps and what is deleted are described on the Account and Data Deletion page. In apps that run on the device, your data is deleted when you uninstall the app or clear the app's data in your device settings.
14. Children's privacy
Our apps are not directed to children under 13, and we do not knowingly collect personal data from children under 13. You must be at least 18 years old to use Sossial. If we learn that a child under 13 has provided us with personal data, we will delete it. Our child safety rules are on the Child Safety Standards page.
15. Website
proxapp.com.tr does not use cookies, analytics or advertising tools. For security, our server keeps access logs containing the IP address, date, requested page and browser information for 30 days. If you write to us by clicking an email link, we use your email address and message only to reply.
16. Changes
We may update this policy to reflect changes in our apps or the law. The current version is always published on this page with the date at the top updated. For significant changes we will notify you in the app or through store release notes.
17. Contact
For any privacy question or request: gencaytosun@hotmail.com