# Compex Coach vs Airofit Legacy

The clearest difference is in-app purchases: Compex Coach at none against Airofit Legacy's 4. Compex Coach also leads on rating (4.7 vs 4.5) and iOS requirement (12.0 vs 16). Airofit Legacy's advantage is review sentiment (76% vs 57%) and update cadence (every 5 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Airofit Legacy sells 4 in-app purchases, starting at $6.99 per month. Compex Coach asks for nothing beyond the download.

Compex Coach holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 309 and 1.3K respectively. Written reviews complicate that: 57% of Compex Coach's written reviews are positive against 76% of Airofit Legacy's, so the app with the better star average is not the one people write more warmly about.

Compex Coach ships an update every 3 months, Airofit Legacy every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Compex Coach | Airofit Legacy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (309 ratings)](https://appshunter.io/ios/app/compex-coach/id1434658426/reviews)** | [4.5 (1.3K ratings)](https://appshunter.io/ios/app/airofit-legacy/id1469023267/reviews) |
| Number of ratings | 309 | **1.3K** |
| Positive reviews | 57.1% of reviews | **75.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 73 MB | 182 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [DJO, LLC](https://appshunter.io/developer/472386862) | [Airofit A/S](https://appshunter.io/developer/1269490789) |

## What reviewers say

### Compex Coach

[App page](https://appshunter.io/ios/app/compex-coach/id1434658426)

This app guides users in setting training objectives, planning sessions, and receiving reminders for their Compex device. It offers detailed instructions on electrode placement, intensity management, and program specifics for various fitness and recovery goals. Users can also share their progress with friends.

**Highlights:** Set training objectives, Plan Compex sessions, Reminders for sessions, Electrode placement guidance, Program details and explanations, Share sessions with friends

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Helpful for electrode placement
- 📈 Good for tracking progress (Workload Score)
- 💪 Aids in bodybuilding and cycling
- ✨ Helps firm/shape body areas
- 💡 Useful for logging past settings

**What reviewers complain about**

- ❓ Poor or vague instructions
- 🤔 Lacks detailed exercise routines/videos
- 🚫 No shipping service/slow processing
- ✉️ No response to emails
- 🔠 Limited electrode placement options

**Reported bugs**

- 🐛 Won't let add multiple muscle groups on different programs

**Requested features**

- More comprehensive electrode placement map
- More detailed instructions and exercise examples
- Video demonstrations of exercises and calibration
- Ability to rearrange missed sessions in the app
- Synchronize functionality between the app and online coach


### Airofit Legacy

[App page](https://appshunter.io/ios/app/airofit-legacy/id1469023267)

This app pairs with a breathing trainer device to help you measure and improve your respiratory strength and lung capacity. It offers customized training programs for various goals like athletic performance, relaxation, and stress reduction, with progress tracking.

**Highlights:** Informative lung tests, Targeted training programs, Challenging exercises with visual/audio guidance, Engaging activity tracking, Personalized profile and reminders, Breathing exercises for strength, tolerance, capacity, performance, and relaxation

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Airofit PRO (monthly) | $6.99 | per month |
| Airofit (Monthly) | $9.99 | per month |
| Airofit PRO (yearly) | $59.00 | per year |
| Airofit (Yearly) | $84.00 | per year |

**What reviewers like**

- 👍 Effective for improving breathing and lung capacity
- 🚀 Noticeable improvements in a short time
- 💪 Helpful for athletes and those with respiratory issues
- 📊 Provides useful metrics and progress tracking
- 🧘‍♀️ Aids in relaxation and stress reduction

**What reviewers complain about**

- 🐛 App crashes, freezes, or has connectivity issues
- 🔍 Lack of clear instructions or guidance on using the device
- 💰 Expensive device and subscription model
- 🔋 Battery life and charging issues
- 📱 App UI/UX could be improved

**Reported bugs**

- App not recognizing device or subscription
- Inaccurate lung capacity measurements
- Exercises not working as intended
- Progress data being lost after app updates

**Requested features**

- Offline mode for training sessions
- More customization options for training programs
- Integration with Apple Health or other fitness apps
- Better data export and analysis tools
- Improved customer support and responsiveness


## Frequently asked questions

### Is Compex Coach free?

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

### Is Airofit Legacy free?

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

### Which has better reviews, Compex Coach or Airofit Legacy?

Compex Coach is rated higher. Compex Coach averages 4.7 out of 5 from 309 ratings, while Airofit Legacy averages 4.5 from 1.3K ratings.

### Do Compex Coach or Airofit Legacy have ads?

Neither Compex Coach nor Airofit Legacy shows ads.

### Which is updated more often, Compex Coach or Airofit Legacy?

Compex Coach ships an update every 3 months, and Airofit Legacy every 5 weeks. Most recently, Compex Coach was updated on November 2, 2026 and Airofit Legacy on November 3, 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.*