# O1 vs Kaigo Plus+

The clearest difference is iOS requirement: O1 at 13.0 against Kaigo Plus+'s 15.0. On price, update cadence, 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.

O1 ships an update every 6 weeks, Kaigo Plus+ monthly. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | O1 | Kaigo Plus+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/o1-275-me/id1233647522/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Monetization | Free | — |
| Size | 1.6 GB | 76 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [ALL ONE QUANTUM RESEARCH CO., LTD.](https://appshunter.io/developer/1092958319) | [Sanwa corp.](https://appshunter.io/developer/1470564425) |

## What reviewers say

### O1

[App page](https://appshunter.io/ios/app/o1-275-me/id1233647522)

This app serves as a health education system, offering insights into body health reports and meridian energy charts. It guides users through breathing exercises and spectrum adjustments to improve well-being, with features for energy analysis and therapy.

**Highlights:** 12S Measurement via device and HealthKit, Facial identification measurement in AR, Body health reports and meridian charts, Breathing training for spectrum adjustment, Exercise, Induction, and Recovery modes, Energy therapy analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### Kaigo Plus+

[App page](https://appshunter.io/ios/app/kaigo-plus-plus/id6477437698)

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

**In-app purchases:** none


## Frequently asked questions

### Is O1 free?

O1 is free to download, with no in-app purchases.

### Is Kaigo Plus+ free?

Kaigo Plus+ is free to download, with no in-app purchases.

### Do O1 or Kaigo Plus+ have ads?

Neither O1 nor Kaigo Plus+ shows ads.

### Which is updated more often, O1 or Kaigo Plus+?

O1 ships an update every 6 weeks, and Kaigo Plus+ monthly. Most recently, O1 was updated on November 2, 2026 and Kaigo Plus+ on November 8, 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.*