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OkeyLens is an app that recognises the tiles on your okey rack through the camera and works out what your hand scores. This document explains which data the app touches, which it does not, and what your rights are.
The developer of the app and the data controller under Turkish law (KVKK no. 6698) and the GDPR is Mehmet Afif Arsay. You can write about anything in this document to mehmetarsay5@gmail.com.
The single purpose of the app is to recognise okey tiles in the image coming from the camera. For that we ask for the iOS camera permission; if you do not grant it the app still opens but cannot recognise anything.
Frames from the camera are processed by two machine-learning models on the device. Those models ship inside the app; they do not go online to work. Frames are not written to disk, are not added to your photo library and — while the optional setting in section 6 is off — never leave the device. When you close the app the current frame is dropped from memory.
The app does not access your photo library and does not ask for permission to.
The following stay on your device only and are not sent to us:
| What | Why | Where |
|---|---|---|
| Whether you have seen the introduction | So it is not shown at every launch | App settings |
| Recently used indicator tiles | So you can pick one with a single tap | App settings |
| Game preferences (variant, house rules, opening threshold) | So you do not set them again every hand | App settings |
| Data contribution preference and daily counter | To remember the state of the setting in section 6 | App settings |
| Anonymous identity token | Created only if data contribution is on (see section 6) | iOS Keychain |
Deleting the app removes all of this from the device.
Name, surname, e-mail, phone number, date of birth, location, contact list, calendar, health data, payment details, advertising identifier (IDFA), cookies and permanent hardware identifiers: none of these are collected. There is no sign-in and no advertising in the app.
The Send photos switch in the game settings is off by default. Only if you turn it on, and only to improve the recognition model:
The legal basis is your explicit consent (KVKK art. 5/1, GDPR art. 6(1)(a)): you give it by turning the setting on and withdraw it by turning it off. Withdrawing does not by itself delete frames already sent; if you want them deleted, see section 10.
The OkeyLens Pro subscription is sold through the App Store. Your payment details stay with Apple; no card number, name or billing information reaches us.
To verify whether a subscription is valid and to let you restore it when you change device we use RevenueCat. What goes to RevenueCat is the App Store purchase record and an anonymous user identifier created by the app; it is not linked to your name or your Apple account.
On the free plan, so that the daily scan allowance can be counted, a counter is written to the server each time we show a result. All that is written is the anonymous installation identifier, the date and how many times it has been used that day; your tiles, your hands and your scores are not sent. The only reason the counter lives on the server is so that the device clock does not decide when the day turns over.
The frames in section 6 and the scan counter are stored on Google Firebase
(okeylens-dataset); the anonymous identity token comes from Google Identity
Toolkit. Subscription verification goes through RevenueCat, Inc. Google acts purely as
a hosting provider in this processing and does not use the data for its own purposes.
Servers may be located outside Türkiye; by turning the setting on you also consent to
that transfer (KVKK art. 9, GDPR Chapter V).
Apart from these there is no other server the app connects to, no other third-party service it uses and no other SDK embedded in it.
Frames that have been sent are kept as long as the recognition model is being trained and are deleted once the purpose no longer applies. The preferences on your device stay until you delete the app.
Everything that goes over the network is encrypted with HTTPS/TLS. The anonymous identity token is held in the iOS Keychain rather than in plain text and is marked so that it does not end up in device backups. The app stores no other credentials.
Under KVKK art. 11 and the GDPR you have the right to learn whether your personal data is being processed, to request information about it, to ask for it to be rectified, erased or destroyed, and to object to the processing.
If you want the frames you sent to be deleted, write to mehmetarsay5@gmail.com. Because we hold nothing that identifies you, the only way we can match your request is the anonymous installation identifier in the app; that is why you need to write before deleting the app. Requests are answered within 30 days at the latest.
The app is suitable for all ages (4+) and does not knowingly collect data from children. To keep children from turning on the setting in section 6, it is kept in a hidden part of the game settings page.
The app does not carry out tracking as Apple defines it: your data is not combined with data from third parties, is not used for ad targeting and is not sold to data brokers. For that reason the app does not show the tracking permission (ATT) prompt either.
Data that Apple itself collects while you download and use the app (download statistics, and crash and usage reports if they are enabled in your device settings) is subject to Apple's privacy policy and does not reach us in a form linked to your identity.
If the policy changes this page is updated and the effective date at the top changes. If there is a material change in the data collected or the purpose, the change is also announced inside the app.