# Echo Eye vs one2free

The clearest difference is in-app purchases: Echo Eye at none against one2free's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. one2free sells 2 in-app purchases, starting at $4.99 per month. Echo Eye asks for nothing beyond the download.

Echo Eye ships an update every 3 weeks, one2free monthly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Echo Eye | one2free |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 75 MB | 41 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HSC Tech Limited](https://appshunter.io/developer/1810433761) | [宁波维度数字科技有限公司](https://appshunter.io/developer/1541975162) |

## What reviewers say

### Echo Eye

[App page](https://appshunter.io/ios/app/echo-eye/id6745018632)

**Features:** macOS Compatibility

**In-app purchases:** none


### one2free

[App page](https://appshunter.io/ios/app/one2free/id6755144150)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthlyVIP | $4.99 | per month |
| yearlyVIP | $49.99 | per year |


## Frequently asked questions

### Is Echo Eye free?

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

### Is one2free free?

one2free is free to download, with in-app purchases available.

### Do Echo Eye or one2free have ads?

Neither Echo Eye nor one2free shows ads.

### Which is updated more often, Echo Eye or one2free?

Echo Eye ships an update every 3 weeks, and one2free monthly. Most recently, Echo Eye was updated on October 15, 2026 and one2free on October 14, 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.*