# OnLock vs LockTimer

The clearest difference is in-app purchases: OnLock at none against LockTimer's 3. LockTimer's advantage is update cadence (every 2 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. LockTimer sells 3 in-app purchases, starting at $3.99 per month. OnLock asks for nothing beyond the download.

OnLock ships an update every 5 weeks, LockTimer every 2 days. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | OnLock | LockTimer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onlock-study-timer/id6770142774/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 48 MB | 5 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ting Ting Xu](https://appshunter.io/developer/1896719164) | [Mishima Design](https://appshunter.io/developer/373060551) |

## What reviewers say

### OnLock

[App page](https://appshunter.io/ios/app/onlock-study-timer/id6770142774)

This app enforces focus by locking distracting applications at the operating system level. It uses AI to verify study sessions with photos, ensuring your progress is genuine and building an earned streak. Features include scheduled blocks, intent journaling, and focus intelligence insights.

**Highlights:** OS-level distraction blocking, AI-verified study sessions, Streak building, Scheduled recurring blocks, Intent journaling, Focus intelligence insights, Home screen widgets

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

**In-app purchases:** none


### LockTimer

[App page](https://appshunter.io/ios/app/locktimer/id6787617957)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LockTimer Pro Monthly | $3.99 | per month |
| LockTimer Pro Yearly | $39.99 | per year |
| LockTimer Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is OnLock free?

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

### Is LockTimer free?

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

### Do OnLock or LockTimer have ads?

Neither OnLock nor LockTimer shows ads.

### Which is updated more often, OnLock or LockTimer?

OnLock ships an update every 5 weeks, and LockTimer every 2 days. Most recently, OnLock was updated on October 2, 2026 and LockTimer on September 20, 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.*