# PlainLock vs Justop

The clearest difference is price: Justop at Free against PlainLock's $2.99. PlainLock's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Justop is free to download; PlainLock costs $2.99 up front. Justop sells 1 one-off in-app purchase. PlainLock asks for nothing beyond the download.

PlainLock ships an update every 5 days, Justop weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PlainLock | Justop |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/justop-app-and-screen-blocker/id6812060120/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | — | Paid |
| Size | 3 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chang Jhih Yeh](https://appshunter.io/developer/6787857579) | [Micah Woodring](https://appshunter.io/developer/1832897427) |

## What reviewers say

### PlainLock

[App page](https://appshunter.io/ios/app/plainlock-screen-time-blocker/id6789597367)

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

**In-app purchases:** none


### Justop

[App page](https://appshunter.io/ios/app/justop-app-and-screen-blocker/id6812060120)

This app helps you focus by blocking distracting applications, categories, and websites during scheduled times. Once a blocking session begins, it cannot be easily interrupted, encouraging adherence to your set schedule. It offers a vacation mode for extended breaks and is designed with privacy in mind, making no network requests.

**Highlights:** Scheduled app blocking, Block apps, categories, and websites, Uninterruptible schedules, Vacation mode, Privacy-focused design, One-time purchase

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Justop Full Access | $4.99 | one-time |


## Frequently asked questions

### Is PlainLock free?

PlainLock costs $2.99, with no in-app purchases.

### Is Justop free?

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

### Do PlainLock or Justop have ads?

Neither PlainLock nor Justop shows ads.

### Which is updated more often, PlainLock or Justop?

PlainLock ships an update every 5 days, and Justop weekly. Most recently, PlainLock was updated on October 25, 2026 and Justop 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.*