# Atomic Clock vs FlowChrono

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Atomic Clock | FlowChrono |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 6 days |
| Size | 29 MB | 46 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STAN I. C. ALEXANDRU PERSOANA FIZICA AUTORIZATA](https://appshunter.io/developer/1799569348) | [泽鑫 王](https://appshunter.io/developer/1736653110) |

## What reviewers say

### Atomic Clock

[App page](https://appshunter.io/ios/app/atomic-clock-exact-time/id6752546454)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlowChrono

[App page](https://appshunter.io/ios/app/flowchrono/id6759900174)

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

**In-app purchases:** none


## Frequently asked questions

### Is Atomic Clock free?

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

### Is FlowChrono free?

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

### Do Atomic Clock or FlowChrono have ads?

FlowChrono shows ads; Atomic Clock does not.

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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.*