# Zen Egg vs Running Popo

The clearest difference is in-app purchases: Zen Egg at none against Running Popo's 4. Running Popo's advantage is ads (none vs shown) and update cadence (every 8 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Running Popo sells 4 one-off in-app purchases. Zen Egg asks for nothing beyond the download.

Zen Egg ships an update every 2 months, Running Popo every 8 days. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Zen Egg | Running Popo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 41 MB | 23 MB |
| Requires iOS | 18.6 | **6.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Animist OU](https://appshunter.io/developer/1079582571) | [Pham Thanh](https://appshunter.io/developer/1106485064) |

## What reviewers say

### Zen Egg

[App page](https://appshunter.io/ios/app/zen-egg/id1080345271)

**In-app purchases:** none


### Running Popo

[App page](https://appshunter.io/ios/app/running-popo/id1170322915)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Coin Pack 1 | $0.99 | one-time |
| Coin Pack 2 | $2.99 | one-time |
| Coin Pack 3 | $5.99 | one-time |


## Frequently asked questions

### Is Zen Egg free?

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

### Is Running Popo free?

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

### Do Zen Egg or Running Popo have ads?

Zen Egg shows ads; Running Popo does not.

### Which is updated more often, Zen Egg or Running Popo?

Zen Egg ships an update every 2 months, and Running Popo every 8 days. Most recently, Zen Egg was updated on October 26, 2026 and Running Popo on October 7, 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.*