# O.R.I.O.N. vs Diagnostics Direct

The clearest difference is review sentiment: O.R.I.O.N. at 13% against Diagnostics Direct's 0%. Diagnostics Direct's advantage is iOS requirement (13.0 vs 15). 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.

O.R.I.O.N. ships an update every 6 weeks, Diagnostics Direct every 2 months. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | O.R.I.O.N. | Diagnostics Direct |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (7 ratings)](https://appshunter.io/ios/app/orion/id1440256690/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | **12.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 40 MB | 61 MB |
| Requires iOS | 15 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AIRBUS HELICOPTERS](https://appshunter.io/developer/442021573) | [Veryon](https://appshunter.io/developer/544008976) |

## What reviewers say

### O.R.I.O.N.

[App page](https://appshunter.io/ios/app/orion/id1440256690)

Access Airbus Helicopters technical documentation online and offline. Download publications and receive alerts for new versions. Requires a Keycopter account for online access.

**Highlights:** Online and offline publication consultation, Downloadable publications, New version availability checks, Email alerts for new publications, Requires Keycopter account

**Features:** Vision Pro support

**In-app purchases:** none


### Diagnostics Direct

[App page](https://appshunter.io/ios/app/diagnostics-direct/id6450266259)

A fault isolation tool for aircraft technicians, offering quick symptom searches and guided troubleshooting. Its dynamic database is updated with field feedback for improved accuracy.

**Highlights:** Fault isolation solution, Quick symptom search, Intuitive troubleshooting workflows, Dynamic, updated database, Mobile access for technicians

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

**In-app purchases:** none


## Frequently asked questions

### Is O.R.I.O.N. free?

O.R.I.O.N. is free to download, with no in-app purchases.

### Is Diagnostics Direct free?

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

### Do O.R.I.O.N. or Diagnostics Direct have ads?

Neither O.R.I.O.N. nor Diagnostics Direct shows ads.

### Which is updated more often, O.R.I.O.N. or Diagnostics Direct?

O.R.I.O.N. ships an update every 6 weeks, and Diagnostics Direct every 2 months. Most recently, O.R.I.O.N. was updated on October 12, 2026 and Diagnostics Direct on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*