# chapter lock vs ReadUp

The clearest difference is review sentiment: ReadUp at 100% against chapter lock's 0%. ReadUp also leads on rating (5.0 vs 3.5). chapter lock's advantage is update cadence (every 2 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. chapter lock sells 2 in-app purchases, starting at $6.99 per 7 days and ReadUp sells 2 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReadUp holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of chapter lock's written reviews are positive against 100% of ReadUp's.

chapter lock ships an update every 2 days, ReadUp every 2 weeks. The most recent releases landed on September 7, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | chapter lock | ReadUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/chapter-lock-screen-time/id6770329811/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/readup-read-for-screen-time/id6790545729/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Subscription | Subscription |
| Size | 25 MB | 54 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Caccamedia LLC](https://appshunter.io/developer/1896667819) | [Nedas Mikucionis](https://appshunter.io/developer/6790545731) |

## What reviewers say

### chapter lock

[App page](https://appshunter.io/ios/app/chapter-lock-screen-time/id6770329811)

This app helps you read more by blocking distracting applications until you meet your reading goals. Set custom reading targets, track your progress, and build a consistent daily habit of turning screen time into reading time.

**Highlights:** App blocking for social media and games, Flexible reading goals (pages or time), Reading habit building, Streak tracking for consistency, Reading insights and progress tracking, In-app library for tracking books

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| pro (weekly) | $6.99 | per 7 days |
| pro (yearly) | $49.99 | per year |


### ReadUp

[App page](https://appshunter.io/ios/app/readup-read-for-screen-time/id6790545729)

This app encourages reading by temporarily blocking distracting applications. Users set reading goals and unlock their apps only after completing their reading sessions, promoting focused engagement with content.

**Highlights:** Block distracting apps, Set reading goals, Unlock apps after reading, Curated book library, Focused reading experience, Track reading progress

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access (Weekly) | $8.99 | per 7 days |
| Full Access (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is chapter lock free?

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

### Is ReadUp free?

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

### Which has better reviews, chapter lock or ReadUp?

ReadUp is rated higher. chapter lock averages 3.5 out of 5 from 2 ratings, while ReadUp averages 5.0 from 1 ratings.

### Do chapter lock or ReadUp have ads?

Neither chapter lock nor ReadUp shows ads.

### Which is updated more often, chapter lock or ReadUp?

chapter lock ships an update every 2 days, and ReadUp every 2 weeks. Most recently, chapter lock was updated on September 7, 2026 and ReadUp on September 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.*