# Athyx vs CrushThisCourse

The clearest difference is rating: CrushThisCourse at 5.0 against Athyx's 2.3. Athyx's advantage is update cadence (every 2 days vs fortnightly). On price, ratings volume, 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.

CrushThisCourse holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Athyx ships an update every 2 days, CrushThisCourse fortnightly. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Athyx | CrushThisCourse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/athyx/id6760621883/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/crushthiscourse-race-strategy/id6760979106/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free | Free |
| Size | 19 MB | 74 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Athyx, Inc.](https://appshunter.io/developer/1885372082) | [Jamie McLaughlin](https://appshunter.io/developer/1875371992) |

## What reviewers say

### Athyx

[App page](https://appshunter.io/ios/app/athyx/id6760621883)

This app helps athletes estimate training intensity by capturing lactate data. It provides insights into training sessions and offers educational content on performance metrics. Review your past activities and understand training patterns with a simple interface.

**Highlights:** Lactate data capture, Training intensity guidance, Performance metric insights, Session history review, Educational training content, Simple interface for athletes

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### CrushThisCourse

[App page](https://appshunter.io/ios/app/crushthiscourse-race-strategy/id6760979106)

This app helps you create and test race strategies for triathlons. It generates course-specific bike power plans and analyzes your goal splits against real finisher data to predict success. Coaches can also build and share athlete strategies.

**Highlights:** Course-aware bike power plan generation, Real-time probability of hitting goal splits, Benchmarking against 2.2 million finisher results, Exportable .fit files for cycling computers, Strategy building for coaches, Support for all triathlon distances

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Athyx free?

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

### Is CrushThisCourse free?

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

### Which has better reviews, Athyx or CrushThisCourse?

CrushThisCourse is rated higher. Athyx averages 2.3 out of 5 from 3 ratings, while CrushThisCourse averages 5.0 from 2 ratings.

### Do Athyx or CrushThisCourse have ads?

Neither Athyx nor CrushThisCourse shows ads.

### Which is updated more often, Athyx or CrushThisCourse?

Athyx ships an update every 2 days, and CrushThisCourse fortnightly. Most recently, Athyx was updated on October 17, 2026 and CrushThisCourse on October 10, 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.*