Activity Calendar
Past 21 weeksHover or focus a square to see the exact day and rating count.
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Slovak Spark
Practical Slovak, one card at a time
Study practical phrases, flip cards, speak them out loud, and train the cards you miss more often until they stick.
Progress snapshot
Your streak is warming up
Keep reviewing cards to unlock achievements, build momentum, and turn weak spots into mastered topics.
Steady spark
Next unlock
First milestone
0 / 0
Keep going to unlock your next achievement.
Topic completion
Your strongest topics rise to the top so the progress feels tangible.
Achievements
Every unlocked milestone lives here.
Leaderboard
Signed-in cloud accounts can compete here once enough activity is synced.
Most reviews
Best accuracy
Most mastered
Profile
Keep studying on this device or sign in to sync
Guest mode keeps your progress only on this device. Sign in with Google to sync across devices, or save a backup file first.
Checking sync status
Looking for the cloud session
This will switch between guest mode and signed-in sync once the Cloudflare backend is available.
Your Google account is already verified. Pick the public name required for future leaderboards, then finish sign up. It cannot be changed later.
Guest-only backup
Use these only if you are studying without signing in. Signed-in accounts already sync automatically.
Card feedback
Flag a card from Study if something feels off. Your reports stay on this device until you export them.
This clears your study progress, streak, and achievements on this device.
Cloud sync will store only the data required for progress, streaks, heatmap, daily stats, and a fixed display name.