# DHC vs MHIRJ Flight Deck

The clearest difference is update cadence: MHIRJ Flight Deck at every 3 months against DHC's every 8 months. MHIRJ Flight Deck also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

DHC ships an update every 8 months, MHIRJ Flight Deck every 3 months. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | DHC | MHIRJ Flight Deck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 months** |
| Size | 92 MB | 115 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [De Havilland Aircraft Company of Canada Limited](https://appshunter.io/developer/1503054078) | [On-Board Data Systems](https://appshunter.io/developer/663920824) |

## What reviewers say

### DHC

[App page](https://appshunter.io/ios/app/dhc-mobile-maintenance/id1503350127)

**In-app purchases:** none


### MHIRJ Flight Deck

[App page](https://appshunter.io/ios/app/mhirj-flight-deck/id6449748596)

**In-app purchases:** none


## Frequently asked questions

### Is DHC free?

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

### Is MHIRJ Flight Deck free?

MHIRJ Flight Deck is free to download, with no in-app purchases.

### Do DHC or MHIRJ Flight Deck have ads?

Neither DHC nor MHIRJ Flight Deck shows ads.

### Which is updated more often, DHC or MHIRJ Flight Deck?

DHC ships an update every 8 months, and MHIRJ Flight Deck every 3 months. Most recently, DHC was updated on September 10, 2026 and MHIRJ Flight Deck on September 13, 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.*