# ONETrident vs Simple Fast

The clearest difference is update cadence: Simple Fast at every 2 months against ONETrident's every 5 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.

ONETrident ships an update every 5 months, Simple Fast every 2 months. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ONETrident | Simple Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onetrident/id6743208592/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 123 MB | 45 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Trident Elite Athletics, LLC](https://appshunter.io/developer/1570615457) | [Duc Dang Ngoc](https://appshunter.io/developer/1704135652) |

## What reviewers say

### ONETrident

[App page](https://appshunter.io/ios/app/onetrident/id6743208592)

Plan and schedule fitness classes directly from your device. View class schedules, sign up for sessions, and find studio locations. Optimize your time and maximize convenience for class bookings.

**Highlights:** View class schedules, Sign up for classes, View studio location, Schedule classes, Optimize time

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Simple Fast

[App page](https://appshunter.io/ios/app/simple-fast-fasting-tracker/id6774254122)

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

**In-app purchases:** none


## Frequently asked questions

### Is ONETrident free?

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

### Is Simple Fast free?

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

### Do ONETrident or Simple Fast have ads?

Both ONETrident and Simple Fast show ads.

### Which is updated more often, ONETrident or Simple Fast?

ONETrident ships an update every 5 months, and Simple Fast every 2 months. Most recently, ONETrident was updated on October 11, 2026 and Simple Fast on October 14, 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.*