# Supernova B54 vs ARC400

The clearest difference is device support: Supernova B54 at 4 against ARC400's 1. Supernova B54 also leads on iOS requirement (12.0 vs 16.4). On price, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Supernova B54 | ARC400 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 18 MB | 62 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Supernova Design GmbH and Co. KG](https://appshunter.io/developer/1491743074) | [KI Momentum GmbH](https://appshunter.io/developer/6800656977) |

## What reviewers say

### Supernova B54

[App page](https://appshunter.io/ios/app/supernova-b54/id1491743075)

**Features:** macOS Compatibility

**In-app purchases:** none


### ARC400

[App page](https://appshunter.io/ios/app/arc400/id6800656975)

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

**In-app purchases:** none


## Frequently asked questions

### Is Supernova B54 free?

Supernova B54 is free to download, with no in-app purchases.

### Is ARC400 free?

ARC400 is free to download, with no in-app purchases.

### Do Supernova B54 or ARC400 have ads?

Neither Supernova B54 nor ARC400 shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*