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Cyanometer icon

Cyanometer

Jan-Hendrik von Kuick

Category: WeatherIndie (reviewed)
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Rankings updated

Current rank

#44 United States · Paid · Weather
Trend shows after a few more snapshotsFull history

Price and ratings

Price
$0.99
Rating
2.8 out of 5
Ratings
4United States

Versions

Released
29 Aug 2019
Last update
Version 2.0
Requires
iOS 16 or later

Details

Size
14.6 MB
Languages
2
Website
—

The original cyanometer was invented by the Genevan physicist and Alpine explorer Horace-Bénédict de Saussure (* 17 February 1740 in Conches; † 22 January 1799) in 1789. It is an instrument for measuring 'blueness', specifically the colour intensity of blue sky. With the measurement it is possible to draw conclusions from the constitution of the atmosphere: the bluer the sky the less the water vapor. Saussures cyanometer consisted out of 53 parts of a circular ring ranging from white over…

Countries1In 1 chart right now
Best rank now#44United States Paid · Weather
Ratings, 7 days—Needs a week of rating history
Longest chart run1 dayUnited States Paid · Weather

Competitors

Full chart

Top of Paid · Weather in United States. Cyanometer is #44 there. Changes are over 7 days.

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Store listing

How the app presents itself on the App Store. Select a screenshot to open it full size.

Cyanometer screenshot 1 of 10Cyanometer screenshot 2 of 10Cyanometer screenshot 3 of 10Cyanometer screenshot 4 of 10Cyanometer screenshot 5 of 10Cyanometer screenshot 6 of 10Cyanometer screenshot 7 of 10Cyanometer screenshot 8 of 10Cyanometer screenshot 9 of 10Cyanometer screenshot 10 of 10

What's new

Version 2.0 · 16 Jan 2026 · 9 months ago

Complete refactoring: - New scale display - AI-assisted determination of the appropriate scale color - Calculated humidity reading - New menu navigation - Scan images are saved within the app - Results and images can be shared - Scan data export function - Comprehensive help documentation

Current rankings

Every chart this app is in right now, best position first.

Cyanometer chart positions
ChartRank24 h7 daysBestDays on chart
United States· Paid · Weather · best #44 · 1 day#44New entryChange unknown#441

Rank history

Higher on the chart is better: #1 is at the top.

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The chart fills in as new snapshots arrive (once a day).

Ranking events

Entries, big moves, #1s and new versions we've recorded.

  1. Entered the Paid · Weather chart at #44United States

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