// wordback · privacy

Privacy Policy

Effective 29 October 2026

WordBack is a vocabulary trainer made by Siarhei Lysiuk (“ApexApps Studio”, “we”). This policy explains what the app stores, what leaves your device and why. In short: WordBack has no account, no ads and no tracking. Your words and practice history stay on your devices and in your own iCloud. The app sends us anonymous usage statistics and crash reports, which never contain your words.

Your library stays yours

  • On your device. Your language pairs, topics, words, notes, pictures you add, practice sessions, answers and settings are stored in the app on your device.
  • In your iCloud. When iCloud is on for WordBack, your library and practice history sync to your other devices through your private iCloud database (Apple CloudKit). Only you can see it; we have no access to it. Voices, settings and audio recordings stay on the device where you made them. You can turn syncing off in iOS Settings › [your name] › iCloud.
  • Only what you share. Your words leave the app only when you export a backup or vocabulary file, share a topic or share an audio recording yourself.

What the app sends, and to whom

Usage statistics — Google Analytics for Firebase

To learn which features are used and where the app can be improved, WordBack sends anonymous usage events to Google Analytics for Firebase, for example that a practice session in Type mode with 6–10 words was finished, or that words were added from a scan. Events contain:

  • the feature and the choices made (practice mode, how a session started, whether it ended early), counts in ranges (such as “6–10 words”) and first-try accuracy rounded to 10%;
  • the language codes of your active language pair (for example “de” and “en-GB”);
  • technical data that the Firebase SDK collects itself: an app instance ID created by Firebase, device model, iOS version, app version, language and region settings, and the approximate country derived from your IP address.

Events never contain your words, translations, notes, topic names, answers, scanned text, file names or your iCloud identity. WordBack does not use the advertising identifier (IDFA), does not collect the identifier for vendors (IDFV), turns off Google Signals and ad personalization, and does not track you across other companies’ apps or websites. Google keeps this data for 14 months.

Crash reports — Firebase Crashlytics

If WordBack crashes or fails to save, a report is sent to Firebase Crashlytics so we can fix the problem. It contains the technical state of the app at that moment (the code location, error codes, device model, iOS and app version, free memory and disk space) and a random Crashlytics installation identifier. It never contains your library. Crash reports are kept for 90 days.

Handwriting — Google ML Kit

Write mode recognizes handwriting on your device with Google ML Kit Digital Ink Recognition. Your handwriting is never sent or saved; only the recognized word is kept as your answer. Each language’s recognition model is downloaded from Google once, and the ML Kit library sends Google technical diagnostics (device model, system and app version, a random installation identifier).

Speech — Apple

In Speak practice the microphone is on only while you answer. Audio is never saved; only the recognized text is kept as your answer. Recognition uses Apple’s Speech framework: depending on the language and the device, Apple may process the audio on the device or on its servers, under Apple’s Privacy Policy. Words are read aloud with the voices installed on your device.

Scan Text and translation — on your device

Scan Text reads photos with Apple’s on-device text recognition. The photos are kept in memory only while you scan and are never stored or sent. Translations are made on your device by Apple’s Translation framework; the languages it needs are downloaded by iOS.

Permissions

  • Microphone and Speech Recognition — only for Speak practice and for checking your pronunciation.
  • Camera — only to take a picture for a word or to scan a page.

WordBack doesn’t ask for access to your photo library: when you pick a photo, iOS gives the app only the photos you choose.

You can change each permission at any time in iOS Settings › Apps › WordBack.

What we don’t do

  • We don’t show ads and don’t share data with advertisers or data brokers.
  • We don’t sell any data.
  • We don’t ask for an account, your name or your email address in the app.

Your choices and rights

Your library is under your control: you can edit or delete any word, reset learning statistics, export a backup, and delete everything by deleting the app (and its data in iOS Settings › [your name] › iCloud › Manage Account Storage). Usage statistics and crash reports are not linked to your identity, so we cannot look them up by your name or email; deleting the app stops all collection and its identifiers.

Depending on where you live (for example in the EU or the UK), you may have the right to access, correct or erase personal data, to object to or restrict its processing, and to complain to your data protection authority. To exercise them, or with any question about privacy, write to privacy@apexappsstudio.com.

Who is responsible

Siarhei Lysiuk
Poland
privacy@apexappsstudio.com

We share data only with the providers named in this policy — Google (Firebase, ML Kit) and Apple — and only for the purposes described here. They process it under their data protection terms, which protect it at least as well as this policy does, and may do so outside your country, including in the United States.

This website

apexappsstudio.com is hosted by Cloudflare. It sets no cookies and has no trackers; Cloudflare Web Analytics counts visits without cookies or personal identifiers. Like any web server, Cloudflare processes your IP address to deliver the pages and protect them from abuse.

Changes

If what WordBack collects changes, this policy is updated first and the date above changes with it.