The catalogue, lessons and tests serve different purposes
The catalogue presents official prompts by scope. Lessons introduce the subject. Practice and mock tests use separate questions with explained answers.
Use short practice sessions for review and a no-hints attempt to check recall. High scores on a familiar set do not replace a professional course or supervised training.
Results stay on your device
Previous study results are stored locally. This is not a cloud account, cross-device synchronisation or an official examination record. Clearing app data or uninstalling can remove local history.
Compare your understanding as well as your scores. Results describe practice, not permission to operate equipment.
Offline study, languages and dark mode
Study content is available offline. Ads, purchases and external sources may need a connection. Choose Czech, Slovak, English or Ukrainian, with a light, dark or system theme.
Translations are informative. Check the Czech original when a technical or legal term is unclear; another interface language does not turn the content into another country's rules.
Free with ads or a one-time purchase
Remove the free version's ads with a one-time Google Play purchase, not a subscription. The authoritative price appears in Google's purchase confirmation before you pay.
If you already purchased it, restore the purchase using the same Google account. Restoring a purchase does not restore study history. Contact support if the purchase state does not update, and never share your account password.