# Stack Builder: Block Tower — Drop, Balance & Climb High

> Drop, Balance & Climb High (iPhone/iPad app by Deokhoon Hong.)

- Source: https://appshunter.io/ios/app/stack-builder-block-tower/id6806581483 (this page in markdown: same URL + `.md`)
- Developer: [Deokhoon Hong](https://appshunter.io/developer/6782890649)
- Category: Games, Casual
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-09-11
- Data updated: 2026-09-30

## What is Stack Builder?

Stack Builder is a one-tap precision stacking game. Tap to drop the moving block onto your tower - land it clean for a perfect stack, or clip the edge and watch it shrink. How high can you go before you miss?

- Solo Mode: stack as high as you can, beat your own best height
- AI Battle: race an AI opponent to 100 - first to the target height wins, or highest score after 60 seconds
- Three AI difficulty levels: Easy, Normal, Hard
- Perfect-landing streaks trigger combo effects and confetti
- Expressive block characters that react as you play
- Offline-friendly, no login required, no account needed
- Occasional house cross-promo cards (no third-party ad SDK)

Made by KunStudio.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Stack Builder Pro | $2.99 | one-time |


## Is Stack Builder safe?

Not enough ratings yet to assess Stack Builder.

## Is Stack Builder legit?

Stack Builder: Block Tower appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Stack Builder is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.1 — 2026-09-29

Stability improvements and minor bug fixes.

### 1.0 — 2026-09-08

No release notes.

## More apps by Deokhoon Hong

- [SubScan: Cost Tracker](https://appshunter.io/ios/app/subscan-cost-tracker/id6783353668)
- [CalmCBT: Anxiety Relief](https://appshunter.io/ios/app/calmcbt-anxiety-relief/id6783600856)
- [HabitForge: Daily Streaks](https://appshunter.io/ios/app/habitforge-daily-streaks/id6783608473)
- [FinCalc: Loan & Mortgage](https://appshunter.io/ios/app/fincalc-loan-and-mortgage/id6783621087)
- [Everyday Calculator Kit](https://appshunter.io/ios/app/everyday-calculator-kit/id6783621643)
- [Budget Planner 50/30/20](https://appshunter.io/ios/app/budget-planner-503020/id6783621775)

All apps by Deokhoon Hong: https://appshunter.io/developer/6782890649

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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 2026-09-30.*