# 算数忍者〜九九の巻〜

> Taken from the public Google Play listing. Every figure below carries the date it was updated.
> Nothing is modelled or estimated. A new collection starts at 00:00 UTC daily and takes several hours; an individual app's reading lands at some point inside that window.

Source page: https://appcurves.com/app/com.fantamstick.kuku

- Package: `com.fantamstick.kuku`
- Developer: Fantamstick, Ltd.
- Category: Education
- Platform: Android (Google Play)
- Released: date not published on the listing
- Lifetime downloads: 142,659 (updated 2026-09-15)
- What the store shows instead: 100,000+
- Rating: the listing no longer shows one (last published 3.19 on 2026-09-10)
- Downloads added: 45 on 2026-09-15
- Readings kept: 4 (2026-08-05 → 2026-09-15)

### Latest readings

| Date (UTC) | Lifetime downloads | Added |
|---|---:|---:|
| 2026-08-05 | 142,038 | — |
| 2026-09-11 | 142,574 | +536 over 37 days |
| 2026-09-14 | 142,614 | +40 over 3 days |
| 2026-09-15 | 142,659 | +45 |

A multi-day "Added" spans two real readings; the days between were not read.

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Site last completed a reading on 2026-09-22. AppCurves is not real-time.
When citing, include the reading date. https://appcurves.com/faq answers where the figure comes from.