# Mont Blanc Compass vs GridDown Maps

The clearest difference is ads: GridDown Maps at none against Mont Blanc Compass's shown. Mont Blanc Compass's advantage is iOS requirement (12.0 vs 15.4). On price, update cadence, 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.

Mont Blanc Compass ships an update every 2 months, GridDown Maps every 5 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Mont Blanc Compass | GridDown Maps |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/griddown-maps/id6792621696/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 28 MB | 37 MB |
| Requires iOS | **12.0** | 15.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takao Ichimura](https://appshunter.io/developer/1474061593) | [James Carey](https://appshunter.io/developer/6792621698) |

## What reviewers say

### Mont Blanc Compass

[App page](https://appshunter.io/ios/app/mont-blanc-compass/id6444902169)

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

**In-app purchases:** none


### GridDown Maps

[App page](https://appshunter.io/ios/app/griddown-maps/id6792621696)

This app provides detailed offline topographic maps of the United States, including streets, trails, and terrain data. It offers navigation tools like location tracking, compass, and route planning, functioning without any internet connection. It's designed for backcountry use and emergencies.

**Highlights:** Offline US state topographic maps, Location tracking and compass, Offline route planning, GPX import/export, Elevation profiles and viewshed analysis, Forest Service Motor Vehicle Use Maps, Survival handbook

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

**In-app purchases:** none


## Frequently asked questions

### Is Mont Blanc Compass free?

Mont Blanc Compass is free to download, with no in-app purchases.

### Is GridDown Maps free?

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

### Do Mont Blanc Compass or GridDown Maps have ads?

Mont Blanc Compass shows ads; GridDown Maps does not.

### Which is updated more often, Mont Blanc Compass or GridDown Maps?

Mont Blanc Compass ships an update every 2 months, and GridDown Maps every 5 weeks. Most recently, Mont Blanc Compass was updated on November 7, 2026 and GridDown Maps on October 31, 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.*