# Stack Rush vs Synapse

The clearest difference is ads: Synapse at none against Stack Rush's shown. On price, update cadence, 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.

Stack Rush ships an update weekly, Synapse fortnightly. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Stack Rush | Synapse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Fortnightly |
| Size | 33 MB | 29 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peterson Tan](https://appshunter.io/developer/1808939337) | [Lucas Thirion](https://appshunter.io/developer/1622836631) |

## What reviewers say

### Stack Rush

[App page](https://appshunter.io/ios/app/stack-rush-keep-it-simple/id6747773209)

**Features:** macOS Compatibility

**In-app purchases:** none


### Synapse

[App page](https://appshunter.io/ios/app/synapse-electric-game/id6751211731)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stack Rush free?

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

### Is Synapse free?

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

### Do Stack Rush or Synapse have ads?

Stack Rush shows ads; Synapse does not.

### Which is updated more often, Stack Rush or Synapse?

Stack Rush ships an update weekly, and Synapse fortnightly. Most recently, Stack Rush was updated on October 25, 2026 and Synapse on October 17, 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.*