# EcoLution vs Rainbow Surfer

The clearest difference is update cadence: Rainbow Surfer at fortnightly against EcoLution's every 8 months. 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.

EcoLution ships an update every 8 months, Rainbow Surfer fortnightly. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | EcoLution | Rainbow Surfer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (28 ratings)](https://appshunter.io/ios/app/rainbow-surfer-duet-color/id6478478379/reviews)** |
| Number of ratings | — | **28** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | — | Ad-supported |
| Size | 5 MB | 257 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Jerome de Cock](https://appshunter.io/developer/1606364543) | [晗 张](https://appshunter.io/developer/1677246927) |

## What reviewers say

### EcoLution

[App page](https://appshunter.io/ios/app/ecolution/id1608599419)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rainbow Surfer

[App page](https://appshunter.io/ios/app/rainbow-surfer-duet-color/id6478478379)

Guide a character through a rhythm-based game by slashing circles and avoiding different colors. Master the beat to achieve perfect combos and unlock new scenes and items. A challenging yet addictive experience for music and game lovers.

**Highlights:** Finger-drag controls, Rhythm-based gameplay, Color matching challenges, Unlockable scenes and items, Addictive music integration, Simple game control experience

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

**In-app purchases:** none


## Frequently asked questions

### Is EcoLution free?

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

### Is Rainbow Surfer free?

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

### Do EcoLution or Rainbow Surfer have ads?

Both EcoLution and Rainbow Surfer show ads.

### Which is updated more often, EcoLution or Rainbow Surfer?

EcoLution ships an update every 8 months, and Rainbow Surfer fortnightly. Most recently, EcoLution was updated on October 7, 2026 and Rainbow Surfer on October 9, 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.*