# DrillLock vs PlainLock

The clearest difference is price: DrillLock at Free against PlainLock's $2.99. PlainLock's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

DrillLock is free to download; PlainLock costs $2.99 up front. DrillLock sells 2 in-app purchases, starting at $6.99 per month. PlainLock asks for nothing beyond the download.

DrillLock ships an update weekly, PlainLock every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DrillLock | PlainLock |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/drilllock-math-app-blocker/id6759181330/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 8 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FRONTLINE LLC](https://appshunter.io/developer/1877229947) | [Chang Jhih Yeh](https://appshunter.io/developer/6787857579) |

## What reviewers say

### DrillLock

[App page](https://appshunter.io/ios/app/drilllock-math-app-blocker/id6759181330)

This app requires users to solve a math problem before accessing distracting applications, helping to create focused study sessions. It offers scheduled blocking, usage limits, and temporary unlocks for essential apps. A pro subscription unlocks advanced features for serious learners.

**Highlights:** Math challenge to unlock apps, Scheduled app blocking, Usage limit blocking, Temporary unlocks, Essential app exceptions, Multiple rule support (Pro)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DrillLock PRO Monthly | $6.99 | per month |
| DrillLock PRO Yearly | $39.99 | per year |


### PlainLock

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

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

**In-app purchases:** none


## Frequently asked questions

### Is DrillLock free?

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

### Is PlainLock free?

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

### Do DrillLock or PlainLock have ads?

Neither DrillLock nor PlainLock shows ads.

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

DrillLock ships an update weekly, and PlainLock every 5 days. Most recently, DrillLock was updated on October 28, 2026 and PlainLock on October 25, 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.*