Support
Questions, feedback or a bug to report? We’d love to hear from you.
Contact
Email us anytime; we usually reply within 3 business days. For bug reports, please include your device model, iOS version, the grade and unit, and which screen you were on.
✉︎ Email usAbout the app
- Name
- ポポさん (Poposan)
- Devices
- iPhone, iOS 17 or later
- Price
- Free, no ads
- Audience
- Elementary school, grades 1–6
- Provider
- Bluewhale Network LLC
- Inspired by
- dopa-drill (MIT License)
Frequently asked questions
Is it free?
Yes. All features are currently free, with no ads.
What grades is it for?
Elementary school grades 1–6. Pick a grade and the units follow the order of Japan’s national curriculum. You can also practice any single unit you like.
Do mistakes cost points?
No. Hints and pictures help your child finish every problem. Mistakes are recorded by kind, and weak spots come up a little more often.
Does it work offline?
Yes. All the math practice works offline. “Story problems” may use the network depending on the device.
What happens when we change phones?
If you are signed in to iCloud, just sign in with the same Apple ID on the new iPhone and the records come along. Two iPhones on the same Apple ID stay in sync automatically.
Which devices are supported?
iPhone with iOS 17 or later. “Story problems” appear on devices that support Apple Intelligence when it is turned on.
The order differs from our school textbook.
Textbook publishers order the units slightly differently. Use “choose a unit” to practice what your child is learning at school.
How do we start over?
Delete and reinstall the app to erase the records on the device (this cannot be undone). To erase the records synced to iCloud as well, see “Deleting your data” in the privacy policy.