# Rocky Mountain Radar vs CalMapper

The clearest difference is update cadence: Rocky Mountain Radar at weekly against CalMapper's every 5 weeks. Rocky Mountain Radar also leads on iOS requirement (6.0 vs 18.6). 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.

Rocky Mountain Radar ships an update weekly, CalMapper every 5 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Rocky Mountain Radar | CalMapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/rocky-mountain-radar/id1044306053/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 16 MB | 115 MB |
| Requires iOS | **6.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Matt Myers](https://appshunter.io/developer/1044306051) | [Technosylva Inc.](https://appshunter.io/developer/996363141) |

## What reviewers say

### Rocky Mountain Radar

[App page](https://appshunter.io/ios/app/rocky-mountain-radar/id1044306053)

This app provides an accurate speed reading using your device's geolocation, offering a digital speedometer, compass, and odometer. It also includes a trip tracker and a unique panic button feature to save travel data for contesting speeding tickets.

**Highlights:** Accurate GPS speed tracking, Digital speedometer, Compass, Odometer and trip tracker, Panic button for ticket defense

**Features:** macOS Compatibility

**In-app purchases:** none


### CalMapper

[App page](https://appshunter.io/ios/app/calmapper/id6742887561)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rocky Mountain Radar free?

Rocky Mountain Radar is free to download, with no in-app purchases.

### Is CalMapper free?

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

### Do Rocky Mountain Radar or CalMapper have ads?

Neither Rocky Mountain Radar nor CalMapper shows ads.

### Which is updated more often, Rocky Mountain Radar or CalMapper?

Rocky Mountain Radar ships an update weekly, and CalMapper every 5 weeks. Most recently, Rocky Mountain Radar was updated on October 24, 2026 and CalMapper on October 28, 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.*