# O.R.I.O.N. vs Zenith Builder

The clearest difference is iOS requirement: Zenith Builder at 13.4 against O.R.I.O.N.'s 15. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | O.R.I.O.N. | Zenith Builder |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | — |
| Monetization | Free | — |
| Size | 39 MB | 24 MB |
| Requires iOS | 15 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AIRBUS HELICOPTERS](https://appshunter.io/developer/442021573) | [Justin TIsdale](https://appshunter.io/developer/1888556140) |

## 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

**In-app purchases:** none


### Zenith Builder

[App page](https://appshunter.io/ios/app/zenith-builder/id6761292663)

**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 Zenith Builder free?

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

### Do O.R.I.O.N. or Zenith Builder have ads?

Neither O.R.I.O.N. nor Zenith Builder shows ads.

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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.*