# Number Game vs Stack

The clearest difference is rating: Stack at 5.0 against Number Game's 4.0. Stack also leads on iOS requirement (15.0 vs 17.0). Number Game's advantage is in-app purchases (none vs 7). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Stack sells 7 one-off in-app purchases. Number Game asks for nothing beyond the download.

Stack holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Number Game ships an update every 2 weeks, Stack every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Number Game | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/number-game-focus-trainer/id1472446759/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stack-tap-tower-builder/id6814873793/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 9 MB | 80 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tharsan Ponnampalam](https://appshunter.io/developer/1250925114) | [Shahbaz Tariq](https://appshunter.io/developer/6785266546) |

## What reviewers say

### Number Game

[App page](https://appshunter.io/ios/app/number-game-focus-trainer/id1472446759)

Test your reaction time by tapping numbers in ascending order. Challenge friends and family to see who can reach the end the fastest. Compare your score to see if you're a god or just average.

**Highlights:** Tap numbers in order, Test speed and reaction time, Challenge friends and family, Score comparison, Simple gameplay

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

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-tap-tower-builder/id6814873793)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Lives | $0.99 | one-time |
| 500 Coins | $0.99 | one-time |
| 15 Lives | $1.99 | one-time |
| 1200 Coins | $1.99 | one-time |
| 2500 Coins | $2.99 | one-time |
| Remove Ads | $2.99 | one-time |
| 50 Lives | $4.99 | one-time |


## Frequently asked questions

### Is Number Game free?

Number Game is free to download, with no in-app purchases.

### Is Stack free?

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

### Which has better reviews, Number Game or Stack?

Stack is rated higher. Number Game averages 4.0 out of 5 from 1 ratings, while Stack averages 5.0 from 1 ratings.

### Do Number Game or Stack have ads?

Both Number Game and Stack show ads.

### Which is updated more often, Number Game or Stack?

Number Game ships an update every 2 weeks, and Stack every 6 days. Most recently, Number Game was updated on October 24, 2026 and Stack on October 24, 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.*