# Collide vs Reaction Time

The clearest difference is in-app purchases: Collide at none against Reaction Time's 2. Collide also leads on iOS requirement (12.0 vs 14.0). Reaction Time's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Reaction Time sells 2 one-off in-app purchases. Collide asks for nothing beyond the download.

Collide ships an update every 3 weeks, Reaction Time every 4 days. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Collide | Reaction Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/reaction-time-hill-runner/id1547112554/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 176 MB | 19 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Niall Austin](https://appshunter.io/developer/1562271080) | [Bit Byte Bit Software Ltd](https://appshunter.io/developer/1485110365) |

## What reviewers say

### Collide

[App page](https://appshunter.io/ios/app/collide-o-scope/id1449250901)

**Features:** macOS Compatibility

**In-app purchases:** none


### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-hill-runner/id1547112554)

Test your reflexes in this endless runner game where you guide a character up a hill. Leap over rolling bombs and aim for a high score. Use revives to continue your run and compete on global leaderboards.

**Highlights:** Endless hill climbing gameplay, Leap over rolling bombs, Increasing difficulty, Revive option to continue, Global leaderboards, Skill-based challenges

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 Revives | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Collide free?

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

### Is Reaction Time free?

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

### Do Collide or Reaction Time have ads?

Neither Collide nor Reaction Time shows ads.

### Which is updated more often, Collide or Reaction Time?

Collide ships an update every 3 weeks, and Reaction Time every 4 days. Most recently, Collide was updated on October 19, 2026 and Reaction Time on October 16, 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.*