drillio: Flash Anzan & Math
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperRyo Iida
CategoryEducation
PriceFree
Released
Rating★ 4.7 (1.1k)
Version3.15.0
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Rating
4.7 ★
1.1k ratings
Measured
drillio: Flash Anzan & Math on the App Store
App details
App ID
6444734622
Publisher
Ryo Iida
On the store since
Dec 2022
3 years on the store
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
35 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.7 ★
1.1k ratings
Measured
Ratings
1.1k
Measured
About drillio: Flash Anzan & Math
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
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
Latest updates
3.15.0
fixed some bugs
