# Simple Focus Timer vs Chronos

The clearest difference is in-app purchases: Simple Focus Timer at none against Chronos's 4. Simple Focus Timer also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 80%). Chronos's advantage is ratings volume (9 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Chronos sells 4 in-app purchases, starting at $2.99 per month. Simple Focus Timer asks for nothing beyond the download.

Simple Focus Timer holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Chronos has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Simple Focus Timer's written reviews are positive against 80% of Chronos's.

Simple Focus Timer ships an update every 3 days, Chronos every 6 days. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Simple Focus Timer | Chronos |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-focus-timer-jazzytimer/id6753013505/reviews)** | [4.6 (9 ratings)](https://appshunter.io/ios/app/chronos-focus-app-blocker/id6755707119/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | **Free** | Freemium |
| Size | 214 MB | 249 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Above AS](https://appshunter.io/developer/894620418) | [TRILLIWON, Co.](https://appshunter.io/developer/1050731374) |

## What reviewers say

### Simple Focus Timer

[App page](https://appshunter.io/ios/app/simple-focus-timer-jazzytimer/id6753013505)

Enhance your concentration with a blend of soothing jazz and calming rain sounds. This app creates a tranquil atmosphere perfect for deep work, studying, or relaxation. It functions entirely offline, making it ideal for any environment.

**Highlights:** Ambient jazz and rain sounds, Offline functionality, Deep work sessions, Study and work aid, Relaxing atmosphere

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

**In-app purchases:** none


### Chronos

[App page](https://appshunter.io/ios/app/chronos-focus-app-blocker/id6755707119)

Enhance your concentration by blocking distracting apps and immersing yourself in calming music. Track your focus sessions and build better habits for deep work.

**Highlights:** Block distracting apps, Curated lofi and ambient sounds, Track focus streaks, Customizable focus sessions, Offline music playback, App blocking via Family Controls, Home screen widgets and Siri Shortcuts

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chronos Pro Monthly | $2.99 | per month |
| Chronos Premium (Annual - Discount) | $7.99 | per year |
| Chronos Pro Yearly | $9.99 | per year |
| Chronos Pro Lifetime | $0.99 | one-time |


## Frequently asked questions

### Is Simple Focus Timer free?

Simple Focus Timer is free to download, with no in-app purchases.

### Is Chronos free?

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

### Which has better reviews, Simple Focus Timer or Chronos?

Simple Focus Timer is rated higher. Simple Focus Timer averages 5.0 out of 5 from 1 ratings, while Chronos averages 4.6 from 9 ratings.

### Do Simple Focus Timer or Chronos have ads?

Neither Simple Focus Timer nor Chronos shows ads.

### Which is updated more often, Simple Focus Timer or Chronos?

Simple Focus Timer ships an update every 3 days, and Chronos every 6 days. Most recently, Simple Focus Timer was updated on October 20, 2026 and Chronos 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.*