# ECHOZ vs Self

The clearest difference is in-app purchases: Self at none against ECHOZ's 3. Self also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). ECHOZ's advantage is update cadence (every 3 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. ECHOZ sells 3 in-app purchases, starting at $2.99 per month. Self asks for nothing beyond the download.

ECHOZ ships an update every 3 days, Self every 2 weeks. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | ECHOZ | Self |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Size | 19 MB | 88 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [hiroki kaneko](https://appshunter.io/developer/1868685586) | [Yuki Shimazu](https://appshunter.io/developer/1690104673) |

## What reviewers say

### ECHOZ

[App page](https://appshunter.io/ios/app/echoz/id6758098875)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.99 | per month |
| Yearly Plan | $29.99 | per year |
| Lifetime Plan | $59.99 | one-time |


### Self

[App page](https://appshunter.io/ios/app/self-control-mate-tracker/id6759315555)

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

**In-app purchases:** none


## Frequently asked questions

### Is ECHOZ free?

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

### Is Self free?

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

### Do ECHOZ or Self have ads?

ECHOZ shows ads; Self does not.

### Which is updated more often, ECHOZ or Self?

ECHOZ ships an update every 3 days, and Self every 2 weeks. Most recently, ECHOZ was updated on October 12, 2026 and Self on September 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.*