# DoCube vs ReadLre

The clearest difference is review sentiment: DoCube at 100% against ReadLre's 0%. DoCube also leads on rating (4.6 vs 1.5) and ads (none vs shown). ReadLre's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (14.0 vs 17.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. DoCube sells 1 one-off in-app purchase and ReadLre sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

DoCube holds the better App Store score, 4.6 against 1.5. That said, the two scores are not equally well evidenced: DoCube has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of DoCube's written reviews are positive against 0% of ReadLre's.

DoCube ships an update every 3 weeks, ReadLre weekly. The most recent releases landed on September 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | DoCube | ReadLre |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (11 ratings)](https://appshunter.io/ios/app/docube-pdf-reader-and-notes/id6470183496/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/readlre-book-reader-and-notes/id6743728476/reviews) |
| Number of ratings | **11** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 91 MB | 49 MB |
| Requires iOS | 17.0 | **14.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [巍 赵](https://appshunter.io/developer/1686869575) | [侠光 邢](https://appshunter.io/developer/1061504196) |

## What reviewers say

### DoCube

[App page](https://appshunter.io/ios/app/docube-pdf-reader-and-notes/id6470183496)

This app transforms reading into knowledge retention with features like multi-tab browsing, precise document navigation, and versatile annotation tools. It supports various formats and converts highlights into flashcards for effective memorization and review.

**Highlights:** Multi-tab reading for multiple documents, Precise document positioning and history navigation, Support for PDF, EPUB, Markdown, and web pages, Six annotation tools including highlights and notes, Cross-document linking for knowledge networks, Automatic flashcard creation from highlights, AI-enhanced card generation

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full-platform Professional Edition | $34.99 | one-time |


### ReadLre

[App page](https://appshunter.io/ios/app/readlre-book-reader-and-notes/id6743728476)

This app offers a pure reading experience with support for numerous e-book and compressed file formats. Customize themes, backgrounds, and reading methods, with options for automatic reading and text-to-speech. Track your reading progress and sync data across devices via iCloud.

**Highlights:** Supports 10+ e-book formats, Supports 8+ compressed file formats, Customizable themes and backgrounds, Automatic reading and text-to-speech, iCloud synchronization, Global book content search, Note search functionality

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $0.99 | per month |
| Yearly subscription | $6.99 | per year |
| ReadLre Pro | $9.99 | one-time |


## Frequently asked questions

### Is DoCube free?

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

### Is ReadLre free?

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

### Which has better reviews, DoCube or ReadLre?

DoCube is rated higher. DoCube averages 4.6 out of 5 from 11 ratings, while ReadLre averages 1.5 from 2 ratings.

### Do DoCube or ReadLre have ads?

ReadLre shows ads; DoCube does not.

### Which is updated more often, DoCube or ReadLre?

DoCube ships an update every 3 weeks, and ReadLre weekly. Most recently, DoCube was updated on September 5, 2026 and ReadLre on September 24, 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.*