# Focus Lock vs MustSleep

The clearest difference is update cadence: Focus Lock at every 9 days against MustSleep's every 4 months. MustSleep's advantage is iOS requirement (16.0 vs 18.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Focus Lock sells 3 in-app purchases, starting at $3.99 per 7 days and MustSleep sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Focus Lock ships an update every 9 days, MustSleep every 4 months. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Focus Lock | MustSleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/focus-lock-app-blocker-timer/id6757624332/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Freemium | — |
| Size | 101 MB | 5 MB |
| Requires iOS | 18.2 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tianfu New Area, Chengdu, Huayang, Burrito Software Development Studio](https://appshunter.io/developer/566625462) | [有伟 董](https://appshunter.io/developer/1679483114) |

## What reviewers say

### Focus Lock

[App page](https://appshunter.io/ios/app/focus-lock-app-blocker-timer/id6757624332)

This app helps you regain control of your screen time by blocking distracting applications instantly, on a schedule, or when you reach a daily usage limit. It offers privacy-focused features and can be disguised as a calculator for discreet use.

**Highlights:** Instant app blocking, Scheduled app locking, Daily usage limits, Passcode protection, App download/deletion blocking, Disguise as calculator, Motivational quotes on lock screen

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Premium Membership | $3.99 | per 7 days |
| 1 Month Premium Membership | $6.99 | per month |
| 1 Year Premium Membership | $19.99 | per year |


### MustSleep

[App page](https://appshunter.io/ios/app/mustsleep/id6763500660)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is Focus Lock free?

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

### Is MustSleep free?

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

### Do Focus Lock or MustSleep have ads?

Neither Focus Lock nor MustSleep shows ads.

### Which is updated more often, Focus Lock or MustSleep?

Focus Lock ships an update every 9 days, and MustSleep every 4 months. Most recently, Focus Lock was updated on October 21, 2026 and MustSleep on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*