# Supernova B54 vs eval

The clearest difference is in-app purchases: Supernova B54 at none against eval's 3. Supernova B54 also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. eval sells 3 in-app purchases, starting at $12.99 per month. Supernova B54 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Supernova B54 | eval |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 18 MB | 95 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Supernova Design GmbH and Co. KG](https://appshunter.io/developer/1491743074) | [eval:u Athlete Analytics UG (haftungsbeschränkt)](https://appshunter.io/developer/1827128791) |

## What reviewers say

### Supernova B54

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

**Features:** macOS Compatibility

**In-app purchases:** none


### eval

[App page](https://appshunter.io/ios/app/evalu/id6748707168)

This app acts as your digital cycling coach, transforming your training data into actionable insights. It helps you understand the meaning behind your performance metrics and guides your decisions on when to push harder or recover. Seamlessly integrates with popular fitness trackers and platforms.

**Highlights:** Interprets training session data, Provides guidance on exertion levels, Adapts training load to life factors, Tracks progress towards goals, Connects with Strava, Garmin, Apple Health, etc.

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| eval:u monthly subscription | $12.99 | per month |
| eval:u 6-months subscription | $69.99 | per 6 months |
| eval:u yearly subscription | $119.99 | per year |


## Frequently asked questions

### Is Supernova B54 free?

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

### Is eval free?

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

### Do Supernova B54 or eval have ads?

Neither Supernova B54 nor eval shows ads.

### Which is updated more often, Supernova B54 or eval?

Supernova B54 ships an update every 3 weeks, and eval every 3 weeks. Most recently, Supernova B54 was updated on October 7, 2026 and eval on October 1, 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.*