# Omnoss vs TrainOS

The clearest difference is update cadence: Omnoss at every 9 days against TrainOS's monthly. 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.

Omnoss ships an update every 9 days, TrainOS monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Omnoss | TrainOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trainos/id6759579581/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | — | Free |
| Size | 60 MB | 90 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Yasin Celik](https://appshunter.io/developer/1835958084) | [TrainOS LLC](https://appshunter.io/developer/1582144014) |

## What reviewers say

### Omnoss

[App page](https://appshunter.io/ios/app/omnoss/id6751597788)

**In-app purchases:** none


### TrainOS

[App page](https://appshunter.io/ios/app/trainos/id6759579581)

This platform streamlines operations for Brazilian Jiu-Jitsu academies, offering separate experiences for students and instructors. Members can book classes, track progress, and engage with the community, while instructors and owners manage curriculum, promotions, and analytics.

**Highlights:** Instant class booking and availability, Personalized check-in options, Training progress tracking with heatmaps, Belt promotion journey visualization, Community feed for members, Curriculum planning and knowledge distribution, Student analytics and competition records

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

**In-app purchases:** none


## Frequently asked questions

### Is Omnoss free?

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

### Is TrainOS free?

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

### Do Omnoss or TrainOS have ads?

Neither Omnoss nor TrainOS shows ads.

### Which is updated more often, Omnoss or TrainOS?

Omnoss ships an update every 9 days, and TrainOS monthly. Most recently, Omnoss was updated on October 30, 2026 and TrainOS on October 31, 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.*