In short: The Bol app does not collect any data about you. Everything you do in the app stays on your device: no accounts, no analytics, no tracking. The only exceptions on this website are the optional waitlist (point 10) and privacy-friendly, cookieless analytics that don't track you (point 11).
1. What data the app collects
None. The Bol app does not collect, store, or transmit any personal data to us or to third parties. For the app, we operate no servers that receive your data, and we never have access to your learning data. If you join the optional waitlist on this website, see point 10.
2. Data that stays on your device
So that the app works, Bol stores your progress locally on your device only, using Apple's UserDefaults. This includes:
- your chosen profile name and avatar,
- your daily streak and your daily goal,
- which lessons you have completed and which words you have learned or saved,
- your settings (e.g. sound effects, haptics, reminders).
This information never leaves your device. It is not uploaded, not synced, and not shared with us or anyone else.
3. No accounts, no sign-up
You need neither an email address nor a password. There is no registration and there are no user accounts.
4. No analytics, no ads, no third-party SDKs
Bol contains no analytics or tracking tools, no advertising networks, and no third-party SDKs that collect data. No cookies or advertising identifiers are used.
5. Pronunciation, speech & microphone
Word and phrase pronunciation is played from pre-generated, native-speaker neural voices bundled in the app. If a recording is missing, Bol falls back to Apple's on-device text-to-speech. Bol does not send any recordings or text to its own servers for this.
In the optional pronunciation exercise, Bol briefly records your microphone to check your pronunciation using Apple's speech recognition. Where your device supports it, this happens on-device; otherwise Apple processes the audio for recognition (see Apple's privacy policy). Bol stores no recordings and sends them to no servers of its own. You can revoke the microphone permission at any time in iOS Settings.
6. In-app purchases
Bol offers a single one-time in-app purchase that unlocks all content (no subscription). The purchase is handled entirely by the App Store and your Apple ID. Bol does not receive or store any payment data (such as card numbers). Using Apple's StoreKit, your device only records whether you have unlocked. See Apple's privacy policy for how payments are processed.
7. Deleting your data
Because everything is stored locally, you are in full control: if you delete Bol from your device, all app data (progress, streak, learned words, and profile) is completely and irreversibly removed. You can restore a previous purchase at any time, free of charge, via "Restore purchases".
8. Children's privacy
Bol is intended for a general audience and is suitable for all ages. Because the app collects and transmits no data whatsoever, no personal data is collected from children either. We do not knowingly request personal information from children.
9. Changes to this policy
If the way the app works changes, we will update this privacy policy and revise the "Last updated" date above.
10. Waitlist on this website
This website offers an optional waitlist so we can notify you when Bol launches. If you sign up, we store only the email address you provide and the time of sign-up. This data is held by our hosting provider Cloudflare and is used solely to notify you once, at launch. We do not share it with third parties and do not use it for advertising. The legal basis is your consent (Art. 6(1)(a) GDPR). You can withdraw it at any time and request deletion at [email protected]; we delete the list after launch at the latest.
11. Website analytics
This website uses Cloudflare Web Analytics, a privacy-friendly, cookieless measurement tool, to understand aggregate traffic such as page views, referrers, and countries. It sets no cookies, stores nothing on your device, does not track you across websites, and does not build a profile of you. No personally identifiable information is collected.
12. Contact
If you have any questions about privacy, contact us at [email protected].