# FlowTimer vs Sleep Sounds

The clearest difference is update cadence: Sleep Sounds at every 2 days against FlowTimer's every 3 weeks. Sleep Sounds also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

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

FlowTimer ships an update every 3 weeks, Sleep Sounds every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | FlowTimer | Sleep Sounds |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 7 MB | 45 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Haeseong Jung](https://appshunter.io/developer/1631768957) | [Tinh Ngo](https://appshunter.io/developer/1874541590) |

## What reviewers say

### FlowTimer

[App page](https://appshunter.io/ios/app/flowtimer-calming-visual-timer/id6753897591)

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

**In-app purchases:** none


### Sleep Sounds

[App page](https://appshunter.io/ios/app/sleep-sounds-rain-and-noise/id6758705682)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FlowTimer free?

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

### Is Sleep Sounds free?

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

### Do FlowTimer or Sleep Sounds have ads?

Both FlowTimer and Sleep Sounds show ads.

### Which is updated more often, FlowTimer or Sleep Sounds?

FlowTimer ships an update every 3 weeks, and Sleep Sounds every 2 days. Most recently, FlowTimer was updated on October 30, 2026 and Sleep Sounds on October 31, 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.*