drillio vs EbiOboe

drillio helps you build real mental math skills with soroban-style flash anzan and arithmetic drills. 41 flash anzan levels (from beginner to 20th dan) and 278 arithmetic lessons. All core learning is free. FLASH ANZAN - 41 levels: beginner, 20th kyu to 1st kyu, then 1st to 20th dan - Master a level by answering correctly 10 times, and earn a certificate - Frame-accurate display timing, so even the fastest flashes are shown precisely - Custom mode: choose your own digits, number of terms and display time - Your fastest answer is saved automatically ARITHMETIC DRILLS - 278 lessons in addition, subtraction, multiplication and division, from basic to advanced - 2-digit x 2-digit, 3-digit problems, fill-in-the-blank problems and more - Earn more points the faster you answer, and see your progress for each lesson CHALLENGES - Time Attack: solve as many problems as you can before time runs out - Oni Calc: answer the problem from N steps back, training memory and calculation together KEEP GOING - Daily streaks, study time and points - Reminders before your streak ends drillio PRO (optional) - No ads - Dark mode - Streak recovery - Priority support Subscriptions renew automatically unless cancelled. Terms of Use: https://gist.github.com/aviciida/c635fb7d61c24c8df4f39506902f3ca6 Privacy Policy: https://gist.github.com/aviciida/f9dd03234fa3de0b23aa536073abcca4

Can you recall that useful short you watched last week? EbiOboe turns "watched it" into "learned it." - Save from the YouTube or X share sheet in two taps - Get reminders at 1, 3, 7, 14, and 30 days - along the forgetting curve - Recall it five times and it graduates ACTIVE RECALL Notifications show only your note and the title first. Retrieving the memory is what makes it stick. Can't recall? The original is one tap away. WATCH YOUR KNOWLEDGE PILE UP Graduated items build your personal archive - cooking tricks, English phrases, workout form, work tips. ALSO - Reviews continue even if the original video is deleted - Tags and full-text search - iCloud sync - One daily digest notification; silent when nothing is due - No ads, no analytics PRICING Every feature is free, limited to 10 items in review. One-time Pro purchase for unlimited items (not a subscription).