# my vs Duosub

The clearest difference is in-app purchases: my at none against Duosub's 1. Duosub's advantage is update cadence (every 4 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Duosub sells 1 in-app purchase, starting at $1.99 per month. my asks for nothing beyond the download.

my ships an update every 2 months, Duosub every 4 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | my | Duosub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (57 ratings)](https://appshunter.io/ios/app/my-oto-mo/id1492399443/reviews)** | — |
| Number of ratings | **57** | — |
| Positive reviews | 69.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 89 MB | 95 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gakken CO.,LTD](https://appshunter.io/developer/294791161) | [GOWS LIMITED LIABILITY COMPANY](https://appshunter.io/developer/1734173309) |

## What reviewers say

### my

[App page](https://appshunter.io/ios/app/my-oto-mo/id1492399443)

Access audio content from educational books on your smartphone or tablet. Features include adjustable playback speed, A-B repeat, and pronunciation feedback for speaking-focused books. Enjoy convenient language learning anytime, anywhere.

**Highlights:** Audio playback for educational books, Adjustable playback speed, A-B repeat function, Pronunciation feedback, Recording and playback of spoken audio, Offline audio access

**Features:** Vision Pro support

**In-app purchases:** none


### Duosub

[App page](https://appshunter.io/ios/app/duosub/id6507464076)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| チケット無制限プラン | $1.99 | per month |


## Frequently asked questions

### Is my free?

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

### Is Duosub free?

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

### Do my or Duosub have ads?

Neither my nor Duosub shows ads.

### Which is updated more often, my or Duosub?

my ships an update every 2 months, and Duosub every 4 weeks. Most recently, my was updated on October 26, 2026 and Duosub on October 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.*