# Kotobee Reader vs UP DL4U

The clearest difference is update cadence: Kotobee Reader at every 2 months against UP DL4U's every 7 months. UP DL4U's advantage is iOS requirement (11.0 vs 13.0). 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.

Kotobee Reader ships an update every 2 months, UP DL4U every 7 months. The most recent releases landed on September 20, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Kotobee Reader | UP DL4U |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (22 ratings)](https://appshunter.io/ios/app/kotobee-reader/id1109764395/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free | — |
| Size | 14 MB | 76 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Vijua](https://appshunter.io/developer/843229887) | [Centros Culturales de Mexico AC.](https://appshunter.io/developer/456331250) |

## What reviewers say

### Kotobee Reader

[App page](https://appshunter.io/ios/app/kotobee-reader/id1109764395)

This app provides an ad-free digital reading experience for interactive ebooks. It supports EPUB 3.0, offers note-taking, highlighting, bookmarking, and text-to-speech functionalities. Access a free digital library for offline reading.

**Highlights:** EPUB 3.0 support, Note-taking and highlighting, Bookmarking, Aggregate annotations to PDF, Offline reading, Text-to-speech, Google lookup

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

**In-app purchases:** none


### UP DL4U

[App page](https://appshunter.io/ios/app/up-dl4u/id1661727440)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kotobee Reader free?

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

### Is UP DL4U free?

UP DL4U is free to download, with no in-app purchases.

### Do Kotobee Reader or UP DL4U have ads?

Neither Kotobee Reader nor UP DL4U shows ads.

### Which is updated more often, Kotobee Reader or UP DL4U?

Kotobee Reader ships an update every 2 months, and UP DL4U every 7 months. Most recently, Kotobee Reader was updated on September 20, 2026 and UP DL4U on September 15, 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.*