# Simple Fasting vs Sleep Mate

The clearest difference is in-app purchases: Sleep Mate at none against Simple Fasting's 1. Sleep Mate also leads on update cadence (every 3 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple Fasting sells 1 one-off in-app purchase. Sleep Mate asks for nothing beyond the download.

Simple Fasting ships an update every 4 months, Sleep Mate every 3 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Simple Fasting | Sleep Mate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 3 days** |
| Size | 28 MB | 88 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UIXLY AS](https://appshunter.io/developer/6789231409) | [seongho park](https://appshunter.io/developer/6801357251) |

## What reviewers say

### Simple Fasting

[App page](https://appshunter.io/ios/app/simple-fasting/id6756801491)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADs | $0.99 | one-time |


### Sleep Mate

[App page](https://appshunter.io/ios/app/sleep-mate-sleep-tracker/id6801357249)

**In-app purchases:** none


## Frequently asked questions

### Is Simple Fasting free?

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

### Is Sleep Mate free?

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

### Do Simple Fasting or Sleep Mate have ads?

Both Simple Fasting and Sleep Mate show ads.

### Which is updated more often, Simple Fasting or Sleep Mate?

Simple Fasting ships an update every 4 months, and Sleep Mate every 3 days. Most recently, Simple Fasting was updated on November 13, 2026 and Sleep Mate on November 10, 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.*