# Aithre Connect vs O'TOP

The clearest difference is in-app purchases: O'TOP at none against Aithre Connect's 1. O'TOP also leads on iOS requirement (15.0 vs 17.6). Aithre Connect's advantage is update cadence (every 2 months vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. Aithre Connect sells 1 one-off in-app purchase. O'TOP asks for nothing beyond the download.

Aithre Connect ships an update every 2 months, O'TOP every 6 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Aithre Connect | O'TOP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/aithre-connect/id1449679614/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | — |
| Size | 71 MB | 170 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Aithre, Inc.](https://appshunter.io/developer/1449679613) | [O'TOP 73](https://appshunter.io/developer/1532766250) |

## What reviewers say

### Aithre Connect

[App page](https://appshunter.io/ios/app/aithre-connect/id1449679614)

Monitor and manage aviation-specific health and environmental data. Track oxygen levels, carbon monoxide, and turbulence for enhanced flight safety and comfort. Integrates with various hardware devices for real-time insights.

**Highlights:** Oxygen system management, Pulse oximetry monitoring, Carbon monoxide detection, Turbulence tracking, Portable oxygen tank monitoring, Trip history logging

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Year All Access | $9.99 | one-time |


### O'TOP

[App page](https://appshunter.io/ios/app/otop/id1532766248)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Aithre Connect free?

Aithre Connect is free to download, with in-app purchases available.

### Is O'TOP free?

O'TOP is free to download, with no in-app purchases.

### Do Aithre Connect or O'TOP have ads?

Neither Aithre Connect nor O'TOP shows ads.

### Which is updated more often, Aithre Connect or O'TOP?

Aithre Connect ships an update every 2 months, and O'TOP every 6 months. Most recently, Aithre Connect was updated on October 20, 2026 and O'TOP 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.*