Last updated: September 23, 2026
The data controller for Pocket Engineer is Ahmet Şahin, an individual developer trading as Pocket Engineer Labs, İstanbul, Türkiye. Contact: pocketengineerlabs@gmail.com
Our approach is simple: we keep only what the app needs to work, restore your data and let a team work together, and we delete it on a fixed schedule. We are nobody's archive.
When you start an analysis, the photos and text you attached, and numbers measured from any sound or vibration sample (never the recording itself), are sent through our servers to Google's cloud processing service, which returns the result. Your content is used only to produce your result and is not used to train models. To avoid charging you twice for the same request, a result is cached on our server for about an hour and deleted within a day.
We use these service providers. They process data only to provide their service to us.
Some of these providers process data outside Türkiye and the EU. Such transfers are made with the safeguards required by law, such as standard contractual clauses.
Google user data. From your Google account we use only your name, email address, profile photo link and user ID for sign-in, and — only if you allow it — the hidden Drive app folder for your encrypted backup copy, where the app can reach only the files it created. We do not sell this data, use it for advertising or share it beyond the providers above. Our use of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.
Within a team, the records you create in the team workspace are visible to its members according to their roles. We do not sell your data, and we share it with nobody else unless the law requires it.
Crash reports (Firebase Crashlytics) and usage analytics (Google Analytics for Firebase) help us find and fix problems. They do not contain your name or email. They are off until you allow them: the app asks you once, and you can change your answer at any time in Settings → Share diagnostics and usage data. The app works the same either way.
Data is deleted automatically on these schedules. If you need records for longer, export them from the app.
| Data | Kept for |
|---|---|
| Account, profile and credit balance | Until you delete your account. An account with no purchased credits, no subscription it pays for and no place on a team is deleted after 6 months without use. |
| Work records, files and backups of a team whose subscription has ended | 60 days after the subscription ends (the team owner is shown the date in the app). While unused top-up credits remain, the team's billing record is kept until they are used. |
| Scan history on your phone | 90 days (at most 120 entries) |
| A machine's reference sound levels and vibration readings on your phone | 12 months (at most 60 machines and 40 readings) |
| Encrypted backups on our servers | Up to 30 days |
| Encrypted backup copies in your own Google Drive app folder (if you allowed it) | Only the 2 most recent copies; older ones are deleted with each new backup, and all of them when you delete your account |
| Finished work orders, approvals, purchase requests, safety sign-offs, audit entries | 90 days after the last activity (open work is kept while the team is active) |
| Credit usage records and result feedback | 90 days |
| Voice notes, exports and other uploaded files | 90 days |
| Credit purchase records | 45 days after the purchase |
| Subscription period records | 45 days after the period ends |
| Unanswered team invitations | 14 days |
| Free-trial protection (email hash, installation identifier) | 90 days |
| AI answer cache | About 1 hour, deleted within a day |
| Crash reports / usage analytics | Up to 90 days / up to 2 months |
| Support emails | Only as long as needed to answer them |
Under the Turkish Personal Data Protection Law (KVKK, Article 11) and, where it applies, the EU GDPR, you can ask to access, correct or delete your data, to restrict or object to its processing, and to receive a copy. You can withdraw consent for analytics at any time in Settings, and export your history from the app.
Write to pocketengineerlabs@gmail.com. We answer within 30 days. You can also complain to the Personal Data Protection Authority of Türkiye (KVKK) or to the data protection authority where you live.
Delete your account at any time in Settings → Delete account. What is deleted and what is briefly kept is described on the Account deletion page.
The app is a professional tool for people aged 18 and over. We do not knowingly collect data from children. If you believe a child has used the app, contact us and we will delete the data.
We may update this policy. We will publish the new version here with its date and, for material changes, tell you in the app.