# Sum Stacker: Number Puzzle — Number stacking puzzle game

> Number stacking puzzle game (iPhone/iPad app by Abigayle Hickey.)

- Source: https://appshunter.io/ios/app/sum-stacker-number-puzzle/id6789945215 (this page in markdown: same URL + `.md`)
- Developer: [Abigayle Hickey](https://appshunter.io/developer/6789945217)
- Category: Games, Education, Puzzle, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 41 MB
- Languages: American English
- Released: 2026-07-16
- Data updated: 2026-09-18
- User reviews in markdown: https://appshunter.io/ios/app/sum-stacker-number-puzzle/id6789945215/reviews.md

## What is Sum Stacker?

Sum Stacker is the cozy number puzzle where every move has to add up. 

Each board hands you a pile of numbered blocks and three stacks. Drag the blocks so every stack adds up to the exact same total. Simple to learn, satisfying to solve — and quietly devious once the numbers go negative.  

WHY YOU'LL GET HOOKED 
• Pure logic — no timers, no ads mid-puzzle, no clutter 
• Positive and negative blocks that flip your whole plan 
• Ten hand-built levels that ramp from gentle to genuinely tricky 
• Later levels hide the target, so you deduce it yourself 
• Chase a flawless 3-star solve on every board  

A perfect few-minutes-at-a-time brain teaser for commutes, coffee breaks, and winding down. Can you make it all add up?


## Version history (last 3 releases)

### 1.2 — 2026-08-26

Updated level difficulty

### 1.1 — 2026-08-17

Updated levels 11-75

### 1.0 — 2026-07-16

No release notes.

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## More apps by Abigayle Hickey

- [Perfect Fit: Block Puzzle](https://appshunter.io/ios/app/perfect-fit-block-puzzle/id6790012885)
- [Whats the Plan](https://appshunter.io/ios/app/whats-the-plan/id6803528933)
- [Perfect Bloom](https://appshunter.io/ios/app/perfect-bloom/id6805587285)
- [Health & Fitness Tracker](https://appshunter.io/ios/app/health-and-fitness-tracker/id6806869183)

All apps by Abigayle Hickey: https://appshunter.io/developer/6789945217

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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 2026-09-18.*