# Echo vs PoopTracker Pro

The clearest difference is price: PoopTracker Pro at Free against Echo's $0.99. PoopTracker Pro also leads on in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

PoopTracker Pro is free to download; Echo costs $0.99 up front. Echo sells 1 one-off in-app purchase. PoopTracker Pro asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Echo | PoopTracker Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 9 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [涛 刘](https://appshunter.io/developer/1863232569) | [跃凯 许](https://appshunter.io/developer/6780236332) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-motion-and-merit-fish/id6756878789)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Prayer Wheels | $0.99 | one-time |


### PoopTracker Pro

[App page](https://appshunter.io/ios/app/pooptracker-pro/id6782294739)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

Echo costs $0.99, and also offers in-app purchases.

### Is PoopTracker Pro free?

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

### Do Echo or PoopTracker Pro have ads?

Neither Echo nor PoopTracker Pro shows ads.

### Which is updated more often, Echo or PoopTracker Pro?

Echo ships an update fortnightly, and PoopTracker Pro fortnightly. Most recently, Echo was updated on October 30, 2026 and PoopTracker Pro on October 31, 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.*