# Robot Devastators vs Stack Merge

The clearest difference is update cadence: Stack Merge at every 2 weeks against Robot Devastators's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Robot Devastators ships an update every 3 months, Stack Merge every 2 weeks. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Robot Devastators | Stack Merge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 177 MB | 103 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TechQiao Inc.](https://appshunter.io/developer/1594308257) | [Rasel Hossain](https://appshunter.io/developer/1474211749) |

## What reviewers say

### Robot Devastators

[App page](https://appshunter.io/ios/app/robot-devastators/id6450830048)

**In-app purchases:** none


### Stack Merge

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Robot Devastators free?

Robot Devastators is free to download, with no in-app purchases.

### Is Stack Merge free?

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

### Do Robot Devastators or Stack Merge have ads?

Both Robot Devastators and Stack Merge show ads.

### Which is updated more often, Robot Devastators or Stack Merge?

Robot Devastators ships an update every 3 months, and Stack Merge every 2 weeks. Most recently, Robot Devastators was updated on October 10, 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.*