# ReadTime vs StackBooks

The clearest difference is review sentiment: StackBooks at 100% against ReadTime's 0%. StackBooks also leads on monetization model (free vs subscription) and update cadence (daily vs monthly). On price, ads, in-app purchases and device support there is nothing between them.

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

ReadTime ships an update monthly, StackBooks daily. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | ReadTime | StackBooks |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Monetization | Subscription | **Free** |
| Size | 22 MB | 129 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ryosuke Hayashi](https://appshunter.io/developer/1841602798) | [Kenta Nobutani](https://appshunter.io/developer/1840736944) |

## What reviewers say

### ReadTime

[App page](https://appshunter.io/ios/app/readtime-read-to-unlock-apps/id6790185992)

This app encourages reading by allowing users to earn timed access to other apps based on the time spent reading. It features a digital bookshelf, progress tracking, and helps reduce phone addiction by creating a tangible reward for reading.

**Highlights:** Track reading sessions with a timer, Earn coins for reading time, Trade coins for timed app access, Digital bookshelf and book tracker, Progress tracking and reading reports, Reduce phone addiction

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

**In-app purchases:** none


### StackBooks

[App page](https://appshunter.io/ios/app/stackbooks-book-tracker-and-tbr/id6805723809)

Easily track your reading progress by scanning book barcodes. Visualize your reading journey as a growing stack of finished books and manage your TBR list with customizable statuses and notes. All your data is stored locally for privacy and offline access.

**Highlights:** Barcode scanning for quick book addition, Visualized reading stack height, TBR and reading status management, Star ratings and notes for finished books, Offline functionality, Reading statistics and insights

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

**In-app purchases:** none


## Frequently asked questions

### Is ReadTime free?

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

### Is StackBooks free?

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

### Do ReadTime or StackBooks have ads?

Neither ReadTime nor StackBooks shows ads.

### Which is updated more often, ReadTime or StackBooks?

ReadTime ships an update monthly, and StackBooks daily. Most recently, ReadTime was updated on November 5, 2026 and StackBooks on November 8, 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.*