# SendMyEbook vs KOOBONE

The clearest difference is in-app purchases: KOOBONE at none against SendMyEbook's 3. KOOBONE also leads on review sentiment (82% vs 57%) and iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. SendMyEbook sells 3 in-app purchases, starting at $0.99 per month. KOOBONE asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for SendMyEbook against 5.0 for KOOBONE. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 57% of SendMyEbook's written reviews are positive against 82% of KOOBONE's.

SendMyEbook ships an update fortnightly, KOOBONE every 3 weeks. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SendMyEbook | KOOBONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/sendmyebook/id6749904484/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/koobone/id6756718632/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 57.1% of reviews | **81.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 154 MB | 7 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [亮 何](https://appshunter.io/developer/1745456926) | [Juanmoe tech (Shenzhen) Limited](https://appshunter.io/developer/1862471219) |

## What reviewers say

### SendMyEbook

[App page](https://appshunter.io/ios/app/sendmyebook/id6749904484)

Easily transfer ebooks to your Kindle device without a computer. Supports EPUB to MOBI/AZW3 conversion and custom cover creation. Optimize TXT files and create custom Kindle lock screens.

**Highlights:** Send ebooks to Kindle wirelessly, EPUB to MOBI/AZW3 conversion, Edit ebook metadata and covers, TXT file optimization, Create custom Kindle lock screens, Supports multiple ebook formats

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $3.99 | per year |
| Lifetime | $5.99 | one-time |


### KOOBONE

[App page](https://appshunter.io/ios/app/koobone/id6756718632)

This app helps manage EPUB comics by uploading them to cloud storage. It offers automatic categorization, custom tagging, and local caching for offline reading.

**Highlights:** EPUB comic management, Cloud storage, Automatic categorization, Custom tagging, Local caching for offline reading

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

**In-app purchases:** none


## Frequently asked questions

### Is SendMyEbook free?

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

### Is KOOBONE free?

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

### Which has better reviews, SendMyEbook or KOOBONE?

SendMyEbook and KOOBONE are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do SendMyEbook or KOOBONE have ads?

Neither SendMyEbook nor KOOBONE shows ads.

### Which is updated more often, SendMyEbook or KOOBONE?

SendMyEbook ships an update fortnightly, and KOOBONE every 3 weeks. Most recently, SendMyEbook was updated on October 9, 2026 and KOOBONE on October 20, 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.*