# Otto vs eKo Listen & Repeat

The clearest difference is device support: Otto at 4 against eKo Listen & Repeat's 2. Otto also leads on iOS requirement (16.0.0 vs 18.5). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Otto sells 6 in-app purchases, starting at $3.99 per month and eKo Listen & Repeat sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Otto ships an update every 4 days, eKo Listen & Repeat every 5 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | Otto | eKo Listen & Repeat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Size | 174 MB | 28 MB |
| Requires iOS | **16.0.0** | 18.5 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Tom Honey](https://appshunter.io/developer/1782767469) | [boyoung kim](https://appshunter.io/developer/1837090334) |

## What reviewers say

### Otto

[App page](https://appshunter.io/ios/app/otto-language-learning/id6738887838)

**Features:** Apple Watch app

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otto Pro - Monthly | $3.99 | per month |
| Otto Pro - Yearly | $29.99 | per year |
| 20 Tokens | $1.99 | one-time |
| 70 Tokens | $4.99 | one-time |
| 180 Tokens | $9.99 | one-time |
| 450 Tokens | $24.99 | one-time |


### eKo Listen & Repeat

[App page](https://appshunter.io/ios/app/eko-listen-and-repeat/id6752529901)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eKo Plus | $4.99 | one-time |


## Frequently asked questions

### Is Otto free?

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

### Is eKo Listen & Repeat free?

eKo Listen & Repeat is free to download, with in-app purchases available.

### Do Otto or eKo Listen & Repeat have ads?

Neither Otto nor eKo Listen & Repeat shows ads.

### Which is updated more often, Otto or eKo Listen & Repeat?

Otto ships an update every 4 days, and eKo Listen & Repeat every 5 days. Most recently, Otto was updated on October 30, 2026 and eKo Listen & Repeat on October 30, 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.*