# Cyanometer vs MeteoFlow°

The clearest difference is review sentiment: MeteoFlow° at 100% against Cyanometer's 25%. MeteoFlow° also leads on price (Free vs $0.99) and update cadence (fortnightly vs every 39 months). Cyanometer's advantage is chart position (#189 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

MeteoFlow° is free to download; Cyanometer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cyanometer ships an update every 39 months, MeteoFlow° fortnightly. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Cyanometer | MeteoFlow° |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/cyanometer/id1476812898/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Best chart rank | **#189** | — |
| Size | 14 MB | 3 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jan-Hendrik von Kuick](https://appshunter.io/developer/1190145903) | [MeteoFlow](https://appshunter.io/developer/1871720221) |

## What reviewers say

### Cyanometer

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

**Currently charting:** #189 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


### MeteoFlow°

[App page](https://appshunter.io/ios/app/meteoflow/id6758244575)

Get accurate, real-time weather forecasts with a clean, minimal interface. Offers hourly, daily, and 10-day outlooks, plus detailed data on temperature, wind, precipitation, and air quality. Includes health and sun/moon insights.

**Highlights:** Real-time and hourly forecasts, 10-day weather outlook, Detailed weather data (temp, wind, precipitation), Air Quality Index (AQI), UV Index and sun protection, Sunrise/sunset and moon phases

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cyanometer free?

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

### Is MeteoFlow° free?

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

### Do Cyanometer or MeteoFlow° have ads?

Neither Cyanometer nor MeteoFlow° shows ads.

### Which is updated more often, Cyanometer or MeteoFlow°?

Cyanometer ships an update every 39 months, and MeteoFlow° fortnightly. Most recently, Cyanometer was updated on October 9, 2026 and MeteoFlow° on October 10, 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.*