Last Updated: November 8, 2026
Schema Mode Diary ("the app") is a personal journal for people who track schema modes between therapy sessions. It is published by WittyApps. The app has no account system and no server of its own. Your diary entries stay on your device.
The app is a self-help notebook. It does not diagnose, treat or assess any condition, and it is not a medical device.
Diary content (stays on your device). Situations, modes, schemas, intensity, body reactions, needs, Healthy Adult responses, session notes, session dates, flashcards and unfinished drafts are stored only in the app's private storage on your device. We never receive, read or upload this content.
App lock. If you turn on the app lock, a salted hash of your PIN is stored on your device. Biometric unlock uses your device's own Face ID, Touch ID or fingerprint system; the app never receives your biometric data.
Usage analytics (no diary content). We use Google Firebase Analytics to count anonymous events such as "entry saved", "weekly view opened" or "backup exported", and in-app purchase events (product and price, no payment details), with the app version, device model, OS version, language and approximate country. Event properties never include the text you write, mode or schema names you chose, intensity values or any other diary content.
Crash reports. We use Google Firebase Crashlytics to receive crash and error reports (stack traces, device model, OS version, app version). Reports do not include diary content.
Crisis region (stays on your device). To list your region's crisis lines first, the app reads the SIM or mobile network country code on Android (no permission required) or the device region setting on iOS. This is used only on your device to order the list; it is never sent to us or anyone else. A region you choose yourself on the help screen is saved only on your device.
Advertising. Free users see a banner on the home and weekly screens and an occasional full-screen ad when the app starts. Ads are provided by Google AdMob and are requested as non-personalized ads. Google may still collect device identifiers (such as the advertising ID / IDFA, where allowed), IP address and basic device information to deliver ads, limit frequency, and prevent fraud. Your diary content is never shared with any ad network. Pro removes all ads. In the EEA, UK and Switzerland, Google's consent message (UMP) is shown when required, and you can change your choice later in Settings.
Purchases. Subscriptions and lifetime purchases are processed by Apple App Store or Google Play. Apart from the anonymous purchase event counted by Firebase Analytics (see above), we receive only the purchase status needed to unlock Pro; we never see your payment details.
We do not sell personal information and do not use your diary content for advertising, profiling or training any model.
Diary data is saved as a file inside the app's private storage on your device. On iOS it is protected by the system's file protection while the device is locked. Uninstalling the app deletes this data.