Effective June 12, 2026; updated August 11, 2026 (advertising starting with version 1.2)
The short version: Leksika itself collects no data about you. Starting with version 1.2, the free tier shows ads served by Google AdMob; what that involves is described below, and a Leksika+ subscription removes ads entirely.
Nothing ourselves. Leksika has no user accounts and no analytics. The app does not connect to any server we operate, because we do not operate any. The entire dictionary ships inside the app and works offline.
The free tier occasionally shows a full-screen ad from Google AdMob at natural breaks: after a finished quiz, or between cards while browsing; never over your learning.
In the EEA, the UK, and Switzerland, the app asks for your consent before any ad can appear, and you can change that choice at any time in Settings → Privacy options. iOS separately asks, through Apple's standard prompt, whether the app may track you across other companies' apps; if you decline, ads are simply non-personalized.
To serve and measure ads, Google processes technical device data (such as your IP address, device identifiers, and ad interaction data) under its own policy: how Google uses information from advertising.
A Leksika+ subscription removes all of this: for subscribers the advertising SDK never starts, so there are no ads, no consent prompts, and no ad-related data processing at all.
If you delete the app, this data is deleted with it. We have no copy; we never had one.
Subscriptions and one-time purchases are processed entirely by Apple through the App Store. We do not receive your name, email address, or payment details. Purchase entitlements are verified on the device using Apple's StoreKit.
The dictionary is built from open data: OpenRussian, English and Russian Wiktionary (via the Wiktextract project), and Tatoeba example sentences, used under CC BY-SA 4.0 and CC BY 2.0 FR. This concerns the words in the app, not anything about you. The full database can be exported from the app's Acknowledgements screen.
Leksika itself does not collect data from anyone, including children.
If this policy ever changes, the new version will be posted at this address with a new effective date. Given the app's design, we do not expect it to change in substance.
Questions about privacy can be raised on the support page.