# Puzzle Shifter vs Stack Tower

The clearest difference is price: Stack Tower at Free against Puzzle Shifter's $2.99. Stack Tower also leads on iOS requirement (15.0 vs 17.0). Puzzle Shifter's advantage is in-app purchases (none vs 1) and ads (none vs shown). On update cadence and device support there is nothing between them.

Stack Tower is free to download; Puzzle Shifter costs $2.99 up front. Stack Tower sells 1 one-off in-app purchase. Puzzle Shifter asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Puzzle Shifter | Stack Tower |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stack-tower-block-stacker/id6760201122/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 5 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shun Isayama](https://appshunter.io/developer/1578976556) | [Jenesh Napit](https://appshunter.io/developer/1742677233) |

## What reviewers say

### Puzzle Shifter

[App page](https://appshunter.io/ios/app/puzzle-shifter/id6639587766)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Stack Tower

[App page](https://appshunter.io/ios/app/stack-tower-block-stacker/id6760201122)

Tap to stack blocks with precision and build the tallest tower possible. Perfect placements are key to maintaining width and boosting your score. Compete in daily challenges and real-time multiplayer matches.

**Highlights:** Precision block stacking, Daily challenges with unique levels, Real-time multiplayer battles, Game Center leaderboards, Unlockable skins and achievements, Satisfying sound and haptic feedback

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Puzzle Shifter free?

Puzzle Shifter costs $2.99, with no in-app purchases.

### Is Stack Tower free?

Stack Tower is free to download, with in-app purchases available.

### Do Puzzle Shifter or Stack Tower have ads?

Stack Tower shows ads; Puzzle Shifter does not.

### Which is updated more often, Puzzle Shifter or Stack Tower?

Puzzle Shifter ships an update every 5 months, and Stack Tower every 5 months. Most recently, Puzzle Shifter was updated on October 5, 2026 and Stack Tower on September 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*