# GroundRollCalc vs RunwayWX

The clearest difference is in-app purchases: RunwayWX at none against GroundRollCalc's 3. GroundRollCalc's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GroundRollCalc sells 3 in-app purchases, starting at $0.99 per month. RunwayWX asks for nothing beyond the download.

GroundRollCalc ships an update every 5 days, RunwayWX every 2 weeks. The most recent releases landed on October 28, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GroundRollCalc | RunwayWX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/runwaywx/id6760546988/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 185 MB | 20 MB |
| Requires iOS | 18.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Rob Honeycutt](https://appshunter.io/developer/1820512480) | [Vinayak Raghubir Sharma](https://appshunter.io/developer/1884889440) |

## What reviewers say

### GroundRollCalc

[App page](https://appshunter.io/ios/app/groundrollcalc/id6747908402)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GroundRollCalc Pro Monthly | $0.99 | per month |
| GroundRollCalc Pro Yearly | $9.99 | per year |
| Unlock Live GPS | $5.99 | one-time |


### RunwayWX

[App page](https://appshunter.io/ios/app/runwaywx/id6760546988)

This app provides pilots with essential aviation weather data, including runway wind analysis, real-time METARs, and satellite runway diagrams. It offers performance calculations, astronomical data, and airport intelligence in a clean, pilot-focused interface.

**Highlights:** Runway wind analysis (headwind, tailwind, crosswind), Real-time METAR and D-ATIS parsing, Satellite runway diagrams with wind overlays, Performance calculations (density altitude, freezing level), Astronomical data (sunrise, sunset, moon phase), Airport intelligence (elevation, timezone, clocks)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GroundRollCalc free?

GroundRollCalc is free to download, with in-app purchases available.

### Is RunwayWX free?

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

### Do GroundRollCalc or RunwayWX have ads?

Neither GroundRollCalc nor RunwayWX shows ads.

### Which is updated more often, GroundRollCalc or RunwayWX?

GroundRollCalc ships an update every 5 days, and RunwayWX every 2 weeks. Most recently, GroundRollCalc was updated on October 28, 2026 and RunwayWX on October 7, 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.*