# SleepRiddle vs Reaction Workout Timer

The clearest difference is in-app purchases: Reaction Workout Timer at none against SleepRiddle's 2. Reaction Workout Timer also leads on update cadence (every 3 weeks vs every 9 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SleepRiddle sells 2 in-app purchases, starting at $3.99 per month. Reaction Workout Timer asks for nothing beyond the download.

SleepRiddle ships an update every 9 months, Reaction Workout Timer every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | SleepRiddle | Reaction Workout Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 15 MB | 5 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [S Ravi Shankar](https://appshunter.io/developer/516903373) | [Hitfire Production AB](https://appshunter.io/developer/1517601288) |

## What reviewers say

### SleepRiddle

[App page](https://appshunter.io/ios/app/sleepriddle-rest-better/id6753263352)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Yearly | $12.99 | per year |


### Reaction Workout Timer

[App page](https://appshunter.io/ios/app/reaction-workout-timer/id6755075522)

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

**In-app purchases:** none


## Frequently asked questions

### Is SleepRiddle free?

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

### Is Reaction Workout Timer free?

Reaction Workout Timer is free to download, with no in-app purchases.

### Do SleepRiddle or Reaction Workout Timer have ads?

Neither SleepRiddle nor Reaction Workout Timer shows ads.

### Which is updated more often, SleepRiddle or Reaction Workout Timer?

SleepRiddle ships an update every 9 months, and Reaction Workout Timer every 3 weeks. Most recently, SleepRiddle was updated on October 30, 2026 and Reaction Workout Timer on October 30, 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.*