# QSum: Number Sums Puzzle — Relaxing offline math & logic

> Relaxing offline math & logic (iPhone/iPad app by Pixie Lab Studios LLC.)

- Source: https://appshunter.io/ios/app/qsum-number-sums-puzzle/id6755447932 (this page in markdown: same URL + `.md`)
- Developer: [Pixie Lab Studios LLC](https://appshunter.io/developer/1853419812)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 42 MB
- Languages: American English
- Released: 2026-08-13
- Data updated: 2026-10-09

## What is QSum?

Match numbers, clear the board.

QSum is a cozy number puzzle with one simple rule: drag across neighboring tiles so their numbers add up to the target sum. Clear every tile for the perfect S grade — but watch out, one greedy move can strand the rest of the board. A relaxing logic game and a genuine brain workout in the same little package.

HOW TO PLAY
- Drag across neighboring tiles so they add up to the target number
- Every cleared tile counts — clear the whole board for the perfect S grade
- Stuck? Ring the hint bell to reveal the next move on the perfect path
- Plan ahead: one greedy move can leave the rest of the board unsolvable

LEVEL MODE — Four handcrafted packs, from gentle 3x3 gardens to the fiendish 6x6 Quantum Matrix. Every level is verified to have a perfect solution — this logic puzzle never deals you an unsolvable board.

ENDLESS MODE — Fresh number puzzles forever. Clear a board perfectly to grow your streak; one miss and it's gone. A quick math workout or a long zen session — your call.

HINTS WHEN YOU NEED THEM — Hints highlight the next move on the perfect path. Earn more by watching an optional ad, or grab a hint pack whenever you need one.

MADE WITH CARE
- Free to play, and playable completely offline — perfect for flights and commutes
- Warm, tactile tile design with light and dark themes
- Satisfying sounds and haptics (toggle anytime)
- No forced ads — ever. Ads are optional and always your choice
- No account, no sign-in; your progress stays on your device
- Train your brain: logic, mental math, and planning in every board

A little brain teaser for your coffee break, from a tiny studio that loves number games.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Nice Tip | $1.99 | one-time |
| Coffee Tip | $4.99 | one-time |
| 10 Hints | $0.99 | one-time |
| 50 Hints | $2.99 | one-time |
| Super Tip | $9.99 | one-time |


## Is QSum safe?

Not enough ratings yet to assess QSum.

## Is QSum legit?

QSum: Number Sums Puzzle has limited verification signals. The AppsHunter Legitimacy Score for QSum is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.0.4 — 2026-08-22

Small update: polish and improvements.

### 1.0.3 — 2026-08-21

Behind the scenes: better insight into how QSum is played, so we can keep improving it.

### 1.0.2 — 2026-08-14

Fresh new look: QSum now opens with the Pixie Lab Studios splash screen.

### 1.0.1 — 2026-08-13

No release notes.

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| --- | --- | --- | --- |
| [KubiLogic - Dice Logic Puzzle](https://appshunter.io/ios/app/kubilogic-dice-logic-puzzle/id6760588017) | 3.9 (7) | Free | Games |
| [Kakuro: Number Crossword](https://appshunter.io/ios/app/kakuro-number-crossword/id1197071375) | 4.8 (1,883) | Free | Games |
| [Number Crunch: Match Game](https://appshunter.io/ios/app/number-crunch-match-game/id6447614068) | 4.7 (56,617) | Free | Games |

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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 2026-10-09.*