# NavCalc Dynamic vs RadarTools

The clearest difference is update cadence: NavCalc Dynamic at every 6 days against RadarTools's every 5 months. 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.

NavCalc Dynamic ships an update every 6 days, RadarTools every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NavCalc Dynamic | RadarTools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/navcalc-dynamic/id1638841716/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 5 months |
| Monetization | Free | — |
| Size | 15 MB | 10 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Richard Craddock](https://appshunter.io/developer/1579756955) | [深圳市海凌科电子有限公司](https://appshunter.io/developer/1116319863) |

## What reviewers say

### NavCalc Dynamic

[App page](https://appshunter.io/ios/app/navcalc-dynamic/id1638841716)

This app calculates the course and speed needed to counteract current and wind effects for navigation. It visually displays these calculations on a compass rose, dynamically updating as parameters change. Useful for learning and solving real-world sailing problems.

**Highlights:** Calculate Course to Steer (CtS), Calculate Speed over Ground (SoG), Visual compass rose display, Dynamic parameter updates, Magnetic variation input, Leeway and wind direction input

**Features:** macOS Compatibility

**In-app purchases:** none


### RadarTools

[App page](https://appshunter.io/ios/app/radartools/id6502672452)

**In-app purchases:** none


## Frequently asked questions

### Is NavCalc Dynamic free?

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

### Is RadarTools free?

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

### Do NavCalc Dynamic or RadarTools have ads?

Neither NavCalc Dynamic nor RadarTools shows ads.

### Which is updated more often, NavCalc Dynamic or RadarTools?

NavCalc Dynamic ships an update every 6 days, and RadarTools every 5 months. Most recently, NavCalc Dynamic was updated on October 24, 2026 and RadarTools 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.*