# Biomefit vs Diesel Optimization

The clearest difference is update cadence: Biomefit at every 3 weeks against Diesel Optimization's every 2 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.

Biomefit ships an update every 3 weeks, Diesel Optimization every 2 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Biomefit | Diesel Optimization |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (33 ratings)](https://appshunter.io/ios/app/biomefit/id6497564345/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 40 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Biomefit LLC](https://appshunter.io/developer/1741429156) | [DIESEL FITNESS, INC.](https://appshunter.io/developer/1886793917) |

## What reviewers say

### Biomefit

[App page](https://appshunter.io/ios/app/biomefit/id6497564345)

Manage your fitness journey with ease. Book classes, buy memberships, and view schedules. Stay informed about upcoming events and special offers within the community.

**Highlights:** Book fitness classes, Purchase memberships, Manage class packages, Cancel classes, View class schedule, See upcoming events, Access special deals

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

**In-app purchases:** none


### Diesel Optimization

[App page](https://appshunter.io/ios/app/diesel-optimization/id6760916740)

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

**In-app purchases:** none


## Frequently asked questions

### Is Biomefit free?

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

### Is Diesel Optimization free?

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

### Do Biomefit or Diesel Optimization have ads?

Neither Biomefit nor Diesel Optimization shows ads.

### Which is updated more often, Biomefit or Diesel Optimization?

Biomefit ships an update every 3 weeks, and Diesel Optimization every 2 months. Most recently, Biomefit was updated on October 14, 2026 and Diesel Optimization on October 1, 2026.

---

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