# Study Timer vs Lockdin

The clearest difference is in-app purchases: Lockdin at none against Study Timer's 3. Lockdin also leads on iOS requirement (14.0.0 vs 16.6). Study Timer's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Study Timer sells 3 in-app purchases, starting at $2.99 per month. Lockdin asks for nothing beyond the download.

Study Timer ships an update every 3 weeks, Lockdin every 2 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Study Timer | Lockdin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lockdin-fortify-your-focus/id6774675650/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 42 MB |
| Requires iOS | 16.6 | **14.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Avelisse labs LLC](https://appshunter.io/developer/1770509749) | [ZION MAHONRI SAPIEN](https://appshunter.io/developer/6774675652) |

## What reviewers say

### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-pomodoro-focus/id6761259795)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly pro access | $2.99 | per month |
| Yearly pro access | $19.99 | per year |
| Lifetime pro access | $24.99 | one-time |


### Lockdin

[App page](https://appshunter.io/ios/app/lockdin-fortify-your-focus/id6774675650)

This app provides a clean and intentional timer to help users focus on tasks, build discipline, and take control of their time. It offers various focus modes for work, study, breaks, and personal growth, designed for simplicity and effectiveness.

**Highlights:** Clean focus timer, Multiple focus modes, Custom session creation, Builds discipline, Reduces distractions, Intentional time management

**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 Lockdin free?

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

### Do Study Timer or Lockdin have ads?

Neither Study Timer nor Lockdin shows ads.

### Which is updated more often, Study Timer or Lockdin?

Study Timer ships an update every 3 weeks, and Lockdin every 2 months. Most recently, Study Timer was updated on November 9, 2026 and Lockdin 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.*