# Bolt Sort Puzzle vs Stack Merge

The clearest difference is in-app purchases: Stack Merge at none against Bolt Sort Puzzle's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Bolt Sort Puzzle sells 10 one-off in-app purchases. Stack Merge asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 7, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Bolt Sort Puzzle | Stack Merge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (245 ratings)](https://appshunter.io/ios/app/bolt-sort-puzzle/id6475401352/reviews)** | — |
| Number of ratings | **245** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 179 MB | 103 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Rollic Games](https://appshunter.io/developer/1452111779) | [Rasel Hossain](https://appshunter.io/developer/1474211749) |

## What reviewers say

### Bolt Sort Puzzle

[App page](https://appshunter.io/ios/app/bolt-sort-puzzle/id6475401352)

Engage in a thrilling puzzle game where you strategically place colored bolts on screws. Merge bolts of the same color to make them disappear and reach the level goal. Test your logic and creativity to master this unique stacking challenge.

**Highlights:** Strategic bolt placement, Color merging mechanics, Level-based challenges, Logic and creativity required, Bolt stacking gameplay

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Pack 1 | $1.99 | one-time |
| Coin Pack 2 | $7.99 | one-time |
| Remove Ads | $7.99 | one-time |
| Mini Bundle | $8.99 | one-time |
| Coin Pack 3 | $14.99 | one-time |
| Special Bundle | $19.99 | one-time |
| Coin Pack 4 | $24.99 | one-time |
| Vip Bundle | $49.99 | one-time |
| Coin Pack 5 | $54.99 | one-time |
| Coin Pack 6 | $99.99 | one-time |


### Stack Merge

[App page](https://appshunter.io/ios/app/stack-merge/id6478578678)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bolt Sort Puzzle free?

Bolt Sort Puzzle is free to download, with in-app purchases available.

### Is Stack Merge free?

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

### Do Bolt Sort Puzzle or Stack Merge have ads?

Both Bolt Sort Puzzle and Stack Merge show ads.

### Which is updated more often, Bolt Sort Puzzle or Stack Merge?

Bolt Sort Puzzle ships an update every 2 weeks, and Stack Merge every 2 weeks. Most recently, Bolt Sort Puzzle was updated on October 7, 2026 and Stack Merge on September 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.*