# Space Expansion vs Stack Merge Mobile

The clearest difference is rating: Stack Merge Mobile at 5.0 against Space Expansion's 4.3. Stack Merge Mobile also leads on review sentiment (100% vs 60%) and ads (none vs shown). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stack Merge Mobile holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 22 and 9 respectively. Written reviews point the same way: 60% of Space Expansion's written reviews are positive against 100% of Stack Merge Mobile's.

Space Expansion ships an update every 10 days, Stack Merge Mobile fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Space Expansion | Stack Merge Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (22 ratings)](https://appshunter.io/ios/app/space-expansion-idle-clicker/id6749261582/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/stack-merge-mobile/id6760034466/reviews)** |
| Number of ratings | **22** | 9 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Fortnightly |
| Monetization | Ad-supported | **Free** |
| Size | 19 MB | 76 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Ehret](https://appshunter.io/developer/1829643087) | [Alec Richard Pickup](https://appshunter.io/developer/1882410794) |

## What reviewers say

### Space Expansion

[App page](https://appshunter.io/ios/app/space-expansion-idle-clicker/id6749261582)

Build and expand a vast space empire by tapping to gather resources, automating production, and exploring new worlds. This idle clicker offers deep progression with satisfying gameplay perfect for short breaks or long sessions.

**Highlights:** Tap to collect resources, Automate production, Upgrade planets, Explore new worlds, Global leaderboard

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

**In-app purchases:** none


### Stack Merge Mobile

[App page](https://appshunter.io/ios/app/stack-merge-mobile/id6760034466)

A satisfying puzzle game where players efficiently pack blocks to create higher numbers and earn gold. Compete for high scores on the leaderboard and enjoy a relaxing experience that can be paused and resumed anytime.

**Highlights:** Block stacking puzzle gameplay, High score competition, Leaderboard rankings, In-game item usage, Pause and resume functionality, Relaxing time-passing activity

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

**In-app purchases:** none


## Frequently asked questions

### Is Space Expansion free?

Space Expansion is free to download, with no in-app purchases.

### Is Stack Merge Mobile free?

Stack Merge Mobile is free to download, with no in-app purchases.

### Which has better reviews, Space Expansion or Stack Merge Mobile?

Stack Merge Mobile is rated higher. Space Expansion averages 4.3 out of 5 from 22 ratings, while Stack Merge Mobile averages 5.0 from 9 ratings.

### Do Space Expansion or Stack Merge Mobile have ads?

Space Expansion shows ads; Stack Merge Mobile does not.

### Which is updated more often, Space Expansion or Stack Merge Mobile?

Space Expansion ships an update every 10 days, and Stack Merge Mobile fortnightly. Most recently, Space Expansion was updated on November 5, 2026 and Stack Merge Mobile on October 31, 2026.

---

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