# NumCage - Addition Puzzle — Daily brain-training puzzle

> Daily brain-training puzzle (iPhone/iPad app by Takuro Tsutsumi.)

- Source: https://appshunter.io/ios/app/numcage-addition-puzzle/id6822733752 (this page in markdown: same URL + `.md`)
- Developer: [Takuro Tsutsumi](https://appshunter.io/developer/1624250887)
- Category: Games, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 43 MB
- Languages: American English, Japanese
- Released: 2026-11-02
- Data updated: 2026-11-06

## What is NumCage?

NumCage is a number puzzle where you fill in the grid so that every block adds up.

HOW TO PLAY
- On a 4×4 grid, fill every cell with the numbers 1–4 (5×5 uses 1–5, up to 1–7 on 7×7)
- Each row and each column contains every number exactly once
- The numbers in each block outlined by thick lines add up to the small number in its top-left corner
Every puzzle has exactly one solution. You can read the rules again anytime from "How to Play".

FEATURES
■ Daily Puzzle
One puzzle a day, the same for everyone. Keep your streak going and share your result as a row of emoji. 5×5 on weekdays, 6×6 on weekends.

■ 100 Stages
Start with gentle puzzles and get a little harder each time. Stages come in packs of 10, so your progress is easy to see. Replay any cleared stage whenever you like, and 6×6 puzzles keep coming after stage 100.

■ Free Play
Pick 4×4, 5×5, 6×6 or 7×7 and choose Easy, Medium or Hard. Play as much as you want.

■ When you're stuck
- Notes: jot down candidate numbers in a cell
- Undo: take back moves one at a time
- Hint: watch a video to reveal the answer for one cell
- Mistakes can be highlighted in red (you can turn this off in Settings)

■ Records
A calendar that gets darker the more you play, plus clears, best times and averages for every grid size and difficulty.

■ And more
- Appearance: Light, Dark, or follow your device
- Languages: English and 日本語
- Plays without an internet connection (except for ads)
- No account needed

ABOUT ADS
NumCage shows banner ads, full-screen ads (every few cleared puzzles) and video ads (for hints). If a video ad can't be loaded, you can still use up to 3 free hints a day.

Each puzzle takes about 1–3 minutes. Perfect for a quick brain workout on your commute or between tasks.

## Is NumCage safe?

Not enough ratings yet to assess NumCage.

## Is NumCage legit?

NumCage - Addition Puzzle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for NumCage is 70 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-11-05

- Fixed an issue where swiping back after tapping Home on the clear screen could take you from the home screen to the home screen.
- Added a "Write a review" link in Settings.

### 1.0.0 — 2026-11-02

No release notes.

## More apps by Takuro Tsutsumi

- [Simple Item Counter](https://appshunter.io/ios/app/simple-item-counter/id1634803896)
- [GitGym: Learn Git & GitHub](https://appshunter.io/ios/app/gitgym-learn-git-and-github/id6821364474)
- [Pitalgo - 共通テスト情報I対策](https://appshunter.io/ios/app/pitalgo-i/id6823904843)
- [LOG//TRACE](https://appshunter.io/ios/app/logtrace/id6826163635)

All apps by Takuro Tsutsumi: https://appshunter.io/developer/1624250887

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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 2026-11-06.*