# Reaction Time vs Rune Circuit

The clearest difference is ads: Reaction Time at none against Rune Circuit's shown. Reaction Time also leads on device support (5 vs 1) and iOS requirement (15.6 vs 17.0). Rune Circuit's advantage is update cadence (every 5 days vs every 2 months). On price and in-app purchases there is nothing between them.

Both are free to download. Reaction Time sells 1 one-off in-app purchase and Rune Circuit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Reaction Time ships an update every 2 months, Rune Circuit every 5 days. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Reaction Time | Rune Circuit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Size | 10 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KidDotCo](https://appshunter.io/developer/819246599) | [Brandon Blaisdell](https://appshunter.io/developer/1867047483) |

## What reviewers say

### Reaction Time

[App page](https://appshunter.io/ios/app/reaction-time-tap-zero-zero/id1090740861)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Can You Find The Cheese? | $1.99 | one-time |


### Rune Circuit

[App page](https://appshunter.io/ios/app/rune-circuit/id6761017048)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Reaction Time free?

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

### Is Rune Circuit free?

Rune Circuit is free to download, with in-app purchases available.

### Do Reaction Time or Rune Circuit have ads?

Rune Circuit shows ads; Reaction Time does not.

### Which is updated more often, Reaction Time or Rune Circuit?

Reaction Time ships an update every 2 months, and Rune Circuit every 5 days. Most recently, Reaction Time was updated on October 6, 2026 and Rune Circuit on October 10, 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.*