# Study Timer! vs App Lock

The clearest difference is price: Study Timer! at Free against App Lock's $2.99. Study Timer! also leads on update cadence (fortnightly vs every 4 months) and iOS requirement (10.0 vs 17.0). App Lock's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

Study Timer! is free to download; App Lock costs $2.99 up front. Study Timer! sells 4 in-app purchases, starting at $4.99 per 7 days. App Lock asks for nothing beyond the download.

Study Timer! ships an update fortnightly, App Lock every 4 months. Both last shipped on October 7, 2026.

## The numbers

| Metric | Study Timer! | App Lock |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/study-timer/id1556811357/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 22.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 5 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [云珍 朱](https://appshunter.io/developer/1535376926) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## What reviewers say

### Study Timer!

[App page](https://appshunter.io/ios/app/study-timer/id1556811357)

This app helps users combat smartphone addiction and improve focus on learning. It uses timed alarms and lock modes to encourage users to put down their phones and stick to study plans. Ideal for students and parents seeking to manage screen time.

**Highlights:** Daily reminders to put down phone, Mandatory mode with unskippable alarms, Flip screen lock mode, Lock screen mode, Customizable time limits, Subscription for advanced features

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription a week | $4.99 | per 7 days |
| Subscription a week (trail) | $4.99 | per 7 days |
| Subscription a year | $24.99 | per year |
| Subscription a year (trail) | $24.99 | per year |


### App Lock

[App page](https://appshunter.io/ios/app/app-lock-beat-phone-addiction/id6480579055)

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

**In-app purchases:** none


## Frequently asked questions

### Is Study Timer! free?

Study Timer! is free to download, with in-app purchases available.

### Is App Lock free?

App Lock costs $2.99, with no in-app purchases.

### Do Study Timer! or App Lock have ads?

Study Timer! shows ads; App Lock does not.

### Which is updated more often, Study Timer! or App Lock?

Study Timer! ships an update fortnightly, and App Lock every 4 months. Most recently, Study Timer! was updated on October 7, 2026 and App Lock on October 7, 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.*