# SleepLock vs Simple Fasting

The clearest difference is update cadence: Simple Fasting at weekly against SleepLock's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SleepLock sells 2 in-app purchases, starting at $1.99 per 7 days and Simple Fasting sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

SleepLock ships an update every 2 months, Simple Fasting weekly. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | SleepLock | Simple Fasting |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 8 MB | 72 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Recep Sevim](https://appshunter.io/developer/1742337262) | [Oleksandr Kryzhanovskyi](https://appshunter.io/developer/1755912450) |

## What reviewers say

### SleepLock

[App page](https://appshunter.io/ios/app/sleeplock-sleep-app-blocker/id6770869892)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Yearly | $9.99 | per year |


### Simple Fasting

[App page](https://appshunter.io/ios/app/simple-fasting-flexible-timer/id6789996869)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is SleepLock free?

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

### Is Simple Fasting free?

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

### Do SleepLock or Simple Fasting have ads?

Neither SleepLock nor Simple Fasting shows ads.

### Which is updated more often, SleepLock or Simple Fasting?

SleepLock ships an update every 2 months, and Simple Fasting weekly. Most recently, SleepLock was updated on October 7, 2026 and Simple Fasting on October 13, 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.*