# ONYX vs fflow

The clearest difference is in-app purchases: fflow at none against ONYX's 6. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ONYX sells 6 in-app purchases, starting at $0.29 per 7 days. fflow asks for nothing beyond the download.

## The numbers

| Metric | ONYX | fflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fflow/id6753859451/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | — | Free |
| Size | 74 MB | 25 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Aresapps Inc](https://appshunter.io/developer/1727296272) | [Eugene Ohu](https://appshunter.io/developer/1844487525) |

## What reviewers say

### ONYX

[App page](https://appshunter.io/ios/app/onyx-screen-time-control/id6575344731)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Week Access | $0.29 | per 7 days |
| Full Monthly Access | $9.99 | per month |
| Full Month Access | $19.99 | per month |
| Full Annual Access | $49.99 | per year |
| Full Annual Access | $99.99 | per year |
| Full Lifetime Access | $99.99 | one-time |


### fflow

[App page](https://appshunter.io/ios/app/fflow/id6753859451)

This app helps you manage screen time by using forced self-reflection. When you reach your limit, it activates your front camera in grayscale to interrupt mindless scrolling and encourage mindful choices.

**Highlights:** App groups with independent time limits, Grayscale camera view for self-reflection, Mindful commitment button, Cooldown period with breathing exercises, Zero data collection and on-device processing

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

**In-app purchases:** none


## Frequently asked questions

### Is ONYX free?

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

### Is fflow free?

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

### Do ONYX or fflow have ads?

Neither ONYX nor fflow 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.*