# greenApes vs Serendip

The clearest difference is update cadence: greenApes at every 2 weeks against Serendip's every 31 months. Serendip's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

greenApes ships an update every 2 weeks, Serendip every 31 months. The most recent releases landed on September 26, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | greenApes | Serendip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/greenapes/id597932602/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 77.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 31 months |
| Monetization | Ad-supported | — |
| Size | 30 MB | 22 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [greenApes](https://appshunter.io/developer/597932605) | [Teamsystem SPA](https://appshunter.io/developer/545232556) |

## What reviewers say

### greenApes

[App page](https://appshunter.io/ios/app/greenapes/id597932602)

Earn digital currency by performing sustainable actions and completing challenges. Use your earnings to support environmental and social initiatives, and unlock rewards. Connect with other apps to automatically track eco-friendly activities.

**Highlights:** Earn TWIN coins for sustainable actions, Support environmental and social initiatives, Unlock rewards and surprises, Connect with Apple Health to track activity, Complete fun challenges, Share stories and ideas

**In-app purchases:** none


### Serendip

[App page](https://appshunter.io/ios/app/serendip/id1590171806)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is greenApes free?

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

### Is Serendip free?

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

### Do greenApes or Serendip have ads?

Neither greenApes nor Serendip shows ads.

### Which is updated more often, greenApes or Serendip?

greenApes ships an update every 2 weeks, and Serendip every 31 months. Most recently, greenApes was updated on September 26, 2026 and Serendip on September 12, 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.*