# Chronion vs OneFocus

The clearest difference is in-app purchases: Chronion at none against OneFocus's 1. OneFocus's advantage is iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. OneFocus sells 1 one-off in-app purchase. Chronion asks for nothing beyond the download.

## The numbers

| Metric | Chronion | OneFocus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 10 MB | 31 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Marco Bormann](https://appshunter.io/developer/1893711045) | [Freedom Dimension (shenzhen) Technology Co., Ltd](https://appshunter.io/developer/6776064465) |

## What reviewers say

### Chronion

[App page](https://appshunter.io/ios/app/chronion/id6762303355)

**Features:** Apple Watch app

**In-app purchases:** none


### OneFocus

[App page](https://appshunter.io/ios/app/onefocus-deep-work/id6790143964)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OneFocus Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Chronion free?

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

### Is OneFocus free?

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

### Do Chronion or OneFocus have ads?

Neither Chronion nor OneFocus shows ads.

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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.*