# Sankaichi

> Sankaichi (iPhone/iPad app by Koji Sato.)

- Source: https://appshunter.io/ios/app/sankaichi/id6813296213 (this page in markdown: same URL + `.md`)
- Developer: [Koji Sato](https://appshunter.io/developer/724048840)
- Category: Games, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 131 MB
- Languages: American English, Japanese
- Released: 2026-11-30
- Data updated: 2026-10-27

## What is Sankaichi?

Trace numbers to make a 3 or a 1.
Such a simple concept, yet so addictively fun!

• Trace 1 → 1 → 1 to make 3
• Trace 3 → 1 → 3 → 3 to make 10
• Trace 10 → 10 → 10 to make 30
• Trace 30 → 30 → 30 → 10 to make 100

Keep tracing numbers to build 3, 1, and their multiples of 10!
How high can you go?

## Is Sankaichi safe?

Not enough ratings yet to assess Sankaichi.

## Is Sankaichi legit?

Sankaichi appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Sankaichi is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 0.9 — 2026-11-30

No release notes.

## More apps by Koji Sato

- [Puzzzeni -Coin Exchange Puzzle](https://appshunter.io/ios/app/puzzzeni-coin-exchange-puzzle/id919037249)
- [PuzzMoney](https://appshunter.io/ios/app/puzzmoney/id979025418)
- [Pow2 -Make 2048 Puzzle](https://appshunter.io/ios/app/pow2-make-2048-puzzle/id1025595484)
- [Puzzle&Math -Brain Training](https://appshunter.io/ios/app/puzzle-and-math-brain-training/id1043368143)
- [Puzzle&Cat](https://appshunter.io/ios/app/puzzle-and-cat/id1055553524)
- [Puzzle&Math2 Brain Training](https://appshunter.io/ios/app/puzzle-and-math2-brain-training/id1067687169)

All apps by Koji Sato: https://appshunter.io/developer/724048840

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-27.*