# DHC vs GroundHog Maintenance

The clearest difference is update cadence: GroundHog Maintenance at every 3 weeks against DHC's every 8 months. GroundHog Maintenance 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, GroundHog Maintenance every 3 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | DHC | GroundHog Maintenance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 92 MB | 110 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) | [rapidBizApps](https://appshunter.io/developer/561997479) |

## What reviewers say

### DHC

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

**In-app purchases:** none


### GroundHog Maintenance

[App page](https://appshunter.io/ios/app/groundhog-maintenance/id1520227758)

**In-app purchases:** none


## Frequently asked questions

### Is DHC free?

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

### Is GroundHog Maintenance free?

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

### Do DHC or GroundHog Maintenance have ads?

Neither DHC nor GroundHog Maintenance shows ads.

### Which is updated more often, DHC or GroundHog Maintenance?

DHC ships an update every 8 months, and GroundHog Maintenance every 3 weeks. Most recently, DHC was updated on October 27, 2026 and GroundHog Maintenance on October 25, 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.*