# readlock vs CalcGate | App Lock with Math

The clearest difference is in-app purchases: CalcGate | App Lock with Math at none against readlock's 2. readlock's advantage is iOS requirement (17.6 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. readlock sells 2 in-app purchases, starting at $9.99 per month. CalcGate | App Lock with Math asks for nothing beyond the download.

## The numbers

| Metric | readlock | CalcGate | App Lock with Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/readlock-read-to-unlock/id6758688445/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 202 MB | 4 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [Foundry Apps LLC](https://appshunter.io/developer/1841523858) | [HIDEYUKI INAGAKI](https://appshunter.io/developer/1819355611) |

## What reviewers say

### readlock

[App page](https://appshunter.io/ios/app/readlock-read-to-unlock/id6758688445)

This app helps you break away from distracting digital habits by locking your most used apps until you complete your daily reading. It offers a curated library of book insights and tracks your reading progress to encourage a healthier relationship with your devices.

**Highlights:** Block distracting apps, Daily reading goals, Curated library of 70+ book insights, Track reading streaks and progress, Personalized book library, Daily reading reminders

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $9.99 | per month |
| Yearly Premium | $39.99 | per year |


### CalcGate | App Lock with Math

[App page](https://appshunter.io/ios/app/calcgate-app-lock-with-math/id6762510886)

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

**In-app purchases:** none


## Frequently asked questions

### Is readlock free?

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

### Is CalcGate | App Lock with Math free?

CalcGate | App Lock with Math is free to download, with no in-app purchases.

### Do readlock or CalcGate | App Lock with Math have ads?

Neither readlock nor CalcGate | App Lock with Math 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.*