# 100ls vs Echo Lang

The clearest difference is in-app purchases: Echo Lang at none against 100ls's 2. Echo Lang also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. 100ls sells 2 in-app purchases, starting at $4.99 per month. Echo Lang asks for nothing beyond the download.

100ls ships an update fortnightly, Echo Lang every 3 weeks. The most recent releases landed on October 6, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 100ls | Echo Lang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 16 MB | 22 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Socratop Tech](https://appshunter.io/developer/1815862937) | [阳帝 李](https://appshunter.io/developer/6772016398) |

## What reviewers say

### 100ls

[App page](https://appshunter.io/ios/app/100ls/id6760612392)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100ls plus monthly | $4.99 | per month |
| 100ls plus yearly | $39.99 | per year |


### Echo Lang

[App page](https://appshunter.io/ios/app/echo-lang-polyglot-listening/id6772065542)

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

**In-app purchases:** none


## Frequently asked questions

### Is 100ls free?

100ls is free to download, with in-app purchases available.

### Is Echo Lang free?

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

### Do 100ls or Echo Lang have ads?

Neither 100ls nor Echo Lang shows ads.

### Which is updated more often, 100ls or Echo Lang?

100ls ships an update fortnightly, and Echo Lang every 3 weeks. Most recently, 100ls was updated on October 6, 2026 and Echo Lang on October 12, 2026.

---

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