# Echo vs TopOne

The clearest difference is price: TopOne at Free against Echo's $6.99. TopOne also leads on iOS requirement (15.0 vs 17.6). Echo's advantage is update cadence (every 5 days vs every 2 weeks). On ads, in-app purchases and device support there is nothing between them.

TopOne is free to download; Echo costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Echo ships an update every 5 days, TopOne every 2 weeks. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Echo | TopOne |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 16 MB | 171 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Umi Indigo LLC](https://appshunter.io/developer/1679236790) | [Firuz Akhmadov](https://appshunter.io/developer/6782886528) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-ai/id6741455864)

**Features:** macOS Compatibility

**In-app purchases:** none


### TopOne

[App page](https://appshunter.io/ios/app/topone-66-kun-beta/id6782886464)

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

Echo costs $6.99, with no in-app purchases.

### Is TopOne free?

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

### Do Echo or TopOne have ads?

Neither Echo nor TopOne shows ads.

### Which is updated more often, Echo or TopOne?

Echo ships an update every 5 days, and TopOne every 2 weeks. Most recently, Echo was updated on October 25, 2026 and TopOne 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.*