# KAATSU Connect vs AIRO Controller

The clearest difference is rating: AIRO Controller at 5.0 against KAATSU Connect's 4.7. AIRO Controller also leads on update cadence (fortnightly vs every 6 weeks). KAATSU Connect's advantage is ratings volume (13 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

AIRO Controller holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: KAATSU Connect has 13 ratings behind it against 1, so its average is the more settled of the two.

KAATSU Connect ships an update every 6 weeks, AIRO Controller fortnightly. The most recent releases landed on June 4, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KAATSU Connect | AIRO Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (13 ratings)](https://appshunter.io/ios/app/kaatsu-connect/id1604116828/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/airo-controller/id6502885378/reviews)** |
| Number of ratings | **13** | 1 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 17 MB | 49 MB |
| Requires iOS | 12.4 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [KAATSU Global, Inc.](https://appshunter.io/developer/1541903350) | [CBH Development, LLC](https://appshunter.io/developer/1747212629) |

## What reviewers say

### KAATSU Connect

[App page](https://appshunter.io/ios/app/kaatsu-connect/id1604116828)

This app connects to specialized Bluetooth-enabled bands to help users improve fitness, speed up recovery, or aid in rehabilitation. It allows for setting target pressure levels for a personalized blood flow restriction training experience.

**Highlights:** Connects to KAATSU Bluetooth bands, Set target pressure levels, Blood Flow Restriction (BFR) training, Fitness improvement, Recovery acceleration, Rehabilitation support

**In-app purchases:** none


### AIRO Controller

[App page](https://appshunter.io/ios/app/airo-controller/id6502885378)

Control your AIRO System for guided or self-guided workouts. Adjust oxygen concentration, monitor workout duration, and follow protocol instructions with built-in timers and cool-down periods.

**Highlights:** Wireless AIRO System control, Protocol-guided workouts, Self-guided workout options, Oxygen concentration adjustment, Workout time monitoring, Built-in cool-down

**In-app purchases:** none


## Frequently asked questions

### Is KAATSU Connect free?

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

### Is AIRO Controller free?

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

### Which has better reviews, KAATSU Connect or AIRO Controller?

AIRO Controller is rated higher. KAATSU Connect averages 4.7 out of 5 from 13 ratings, while AIRO Controller averages 5.0 from 1 ratings.

### Do KAATSU Connect or AIRO Controller have ads?

Neither KAATSU Connect nor AIRO Controller shows ads.

### Which is updated more often, KAATSU Connect or AIRO Controller?

KAATSU Connect ships an update every 6 weeks, and AIRO Controller fortnightly. Most recently, KAATSU Connect was updated on June 4, 2026 and AIRO Controller on September 18, 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.*