# Kotobee Reader vs Mind Base Instructors

The clearest difference is update cadence: Mind Base Instructors at fortnightly against Kotobee Reader's every 2 months. Kotobee Reader's advantage is iOS requirement (13.0 vs 15.1). 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, Mind Base Instructors fortnightly. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Kotobee Reader | Mind Base Instructors |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Free | — |
| Size | 14 MB | 65 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vijua](https://appshunter.io/developer/843229887) | [MINDBASE EDUCATION SERVICES - L.L.C](https://appshunter.io/developer/1804569456) |

## 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


### Mind Base Instructors

[App page](https://appshunter.io/ios/app/mind-base-instructors/id6743792404)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kotobee Reader free?

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

### Is Mind Base Instructors free?

Mind Base Instructors is free to download, with no in-app purchases.

### Do Kotobee Reader or Mind Base Instructors have ads?

Neither Kotobee Reader nor Mind Base Instructors shows ads.

### Which is updated more often, Kotobee Reader or Mind Base Instructors?

Kotobee Reader ships an update every 2 months, and Mind Base Instructors fortnightly. Most recently, Kotobee Reader was updated on October 10, 2026 and Mind Base Instructors on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*