# StudyTimer, TaskTimer vs OnLock

StudyTimer, TaskTimer and OnLock are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | StudyTimer, TaskTimer | OnLock |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Free |
| Size | 0 MB | 48 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TomatoAppLab](https://appshunter.io/developer/1676711750) | [Ting Ting Xu](https://appshunter.io/developer/1896719164) |

## What reviewers say

### StudyTimer, TaskTimer

[App page](https://appshunter.io/ios/app/studytimer-tasktimer/id6739139599)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is StudyTimer, TaskTimer free?

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

### Is OnLock free?

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

### Do StudyTimer, TaskTimer or OnLock have ads?

Neither StudyTimer, TaskTimer nor OnLock shows ads.

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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.*