# Cyanometer vs Crosswind Calculator Pro

The clearest difference is review sentiment: Crosswind Calculator Pro at 75% against Cyanometer's 25%. Crosswind Calculator Pro also leads on rating (3.3 vs 2.8) and update cadence (fortnightly vs every 39 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Cyanometer costs $0.99 and Crosswind Calculator Pro $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Crosswind Calculator Pro holds the better App Store score, 3.3 against 2.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 25% of Cyanometer's written reviews are positive against 75% of Crosswind Calculator Pro's.

Cyanometer ships an update every 39 months, Crosswind Calculator Pro fortnightly. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Cyanometer | Crosswind Calculator Pro |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/cyanometer/id1476812898/reviews) | **[3.3 (4 ratings)](https://appshunter.io/ios/app/crosswind-calculator-pro/id1513961241/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 25.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | #186 | **#175** |
| Size | 14 MB | 1 MB |
| Requires iOS | 16 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jan-Hendrik von Kuick](https://appshunter.io/developer/1190145903) | [Rob Barltrop](https://appshunter.io/developer/1513961240) |

## What reviewers say

### Cyanometer

[App page](https://appshunter.io/ios/app/cyanometer/id1476812898)

**Currently charting:** #186 Top Paid · Weather (US App Store)

Measure the intensity of blue in the sky to understand atmospheric conditions. Save scans with location and time data for comparison across different places. Offers modern, historical, and custom color scales.

**Highlights:** Measure sky blueness intensity, Modern, Saussure, and custom scales, Save scans with date, time, and location, Compare sky conditions across locations, Privacy-focused, no external data processing

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

**In-app purchases:** none


### Crosswind Calculator Pro

[App page](https://appshunter.io/ios/app/crosswind-calculator-pro/id1513961241)

**Currently charting:** #175 Top Paid · Weather (US App Store)

Quickly calculate head, tail, and crosswind components with one-handed input. It also computes reciprocal headings and inflight wind using your device's location and compass.

**Highlights:** One-handed input for wind calculations, Calculate head/tail and crosswind, Compute reciprocal headings/tracks, Inflight wind calculation using GPS, Manual heading input option, No location data storage

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

**In-app purchases:** none


## Frequently asked questions

### Is Cyanometer free?

Cyanometer costs $0.99, with no in-app purchases.

### Is Crosswind Calculator Pro free?

Crosswind Calculator Pro costs $0.99, with no in-app purchases.

### Which has better reviews, Cyanometer or Crosswind Calculator Pro?

Crosswind Calculator Pro is rated higher. Cyanometer averages 2.8 out of 5 from 4 ratings, while Crosswind Calculator Pro averages 3.3 from 4 ratings.

### Do Cyanometer or Crosswind Calculator Pro have ads?

Neither Cyanometer nor Crosswind Calculator Pro shows ads.

### Which is updated more often, Cyanometer or Crosswind Calculator Pro?

Cyanometer ships an update every 39 months, and Crosswind Calculator Pro fortnightly. Most recently, Cyanometer was updated on October 9, 2026 and Crosswind Calculator Pro on October 13, 2026.

### Which is more popular, Cyanometer or Crosswind Calculator Pro?

Cyanometer currently peaks at #186 in the App Store charts, and Crosswind Calculator Pro at #175. Chart position reflects recent download velocity rather than total install base.

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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.*