# Serene Orbs vs Knife Rain

The clearest difference is update cadence: Knife Rain at weekly against Serene Orbs's every 3 months. Knife Rain also leads on iOS requirement (13.0 vs 15.0). 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.

Serene Orbs ships an update every 3 months, Knife Rain weekly. Both last shipped on November 8, 2026.

## The numbers

| Metric | Serene Orbs | Knife Rain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Size | 58 MB | 38 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Olivier Ricot](https://appshunter.io/developer/1754321345) | [famobi](https://appshunter.io/developer/933760663) |

## What reviewers say

### Serene Orbs

[App page](https://appshunter.io/ios/app/serene-orbs/id6504914382)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knife Rain

[App page](https://appshunter.io/ios/app/knife-rain-master-throw/id6740991951)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Serene Orbs free?

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

### Is Knife Rain free?

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

### Do Serene Orbs or Knife Rain have ads?

Both Serene Orbs and Knife Rain show ads.

### Which is updated more often, Serene Orbs or Knife Rain?

Serene Orbs ships an update every 3 months, and Knife Rain weekly. Most recently, Serene Orbs was updated on November 8, 2026 and Knife Rain on November 8, 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.*