Comparison

Splash° vs Cyanometer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Splash°

Get real-time water temperatures for lakes and rivers across Switzerland. Perfect for swimmers, kayakers, and water sports enthusiasts to check conditions before diving in, year-round.

Highlights
  • Real-time water temperature data
  • Covers lakes and rivers in Switzerland
  • Supports various water sports
  • All-year-round availability
  • Favorite water spots
  • Notifications for temperature changes
Features
Read full description

Follow in real time the temperature of lakes and rivers in Switzerland! Splash° gives you the water temperature in real time for the main lakes and rivers in Switzerland. You often go swimming, but you don't like to be surprised by the water temperature? With Splash° you can check in real time the temperature of the water before you dive in. You have no reason to hesitate anymore! SUMMER AND WINTER Perfect for paddling, kayaking, swimming in summer, as well as for the brave ones who swim even in winter! The app is available all year round so you can follow the water temperature under the sun or in cold weather. IDEAL FOR ALL YOUR ACTIVITIES Adopted by a variety of sportsmen and women who enjoy canoeing, rafting, canyoning, windsurfing, wakeboarding, water skiing, kitesurfing, diving, and many other sports that require a good knowledge of water conditions. AN ACCURATE TEMPERATURE Splash° is based on official data from sensors installed at 60 cm depth in the lakes. The information comes from more than 90 connected stations in Switzerland. This gives you accurate temperature and real-time data. EVERYWHERE IN SWITZERLAND There are more than 22 lakes and more than 55 rivers that you can add to your favorites. Find a lake near you, or the ideal river for your vacations. Add your favorite water spots and receive a notification when the water temperature is worth knowing. Rhône Halle de l'île, Lake Zürich, Aare Bern, Lake Geneva Bains des Pâquis, Lake Neuchâtel,... -------------------------------------- The app is 100% free, without subscription and available on iPhone, iPad and Mac. Adopt Splash°, your companion at all times and all year round for your water activities.

About

Cyanometer

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
Currently charting
Read full description

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 different grades of blue to black (Saussure used Prussian blue). Saussure used his cyanometer for measurements in Geneva, Chamonix und on the Mont Blanc. Alexander von Humboldt used a cyanometer on his expedition to America (1799 - 1804). You can use our Cyanometer in three modes: The modern scale uses distinct grades of blue starting with clear white up to black. The Saussure scale shall give an idea about the colors from Saussures original cyanometer. With the user defined scale own scans of blue skies can be added to an own colored circular ring - an own cyanometer. Each scan is saved inside the app containing information about date, time and locality. So it is possible to compare scans of blue skies from different locations. Privacy notice: No data will be saved or processed outside the app.

Screenshots

Splash°4 screens
Cyanometer4 screens

Verdict

The call

The clearest difference is review sentiment: Splash° at 82% against Cyanometer's 25%. Splash° also leads on price (Free vs $0.99) and rating (3.3 vs 2.8). Cyanometer's advantage is chart position (#189 vs unranked). On ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Splash° 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: 82% of Splash°'s written reviews are positive against 25% of Cyanometer's.

UpkeepUpdate frequency

Splash° ships an update every 11 months, Cyanometer every 39 months. The most recent releases landed on September 21, 2026 and October 9, 2026 respectively.

Scorecard8 real differences · 3 level
Splash° versus Cyanometer: the parameters behind the verdict, then further details
ParameterSplash°Cyanometer
PriceFree — better$0.99
Rating3.3 (4 ratings) — better2.8 (4 ratings)
Positive reviews81.8% of reviews — better25.0% of reviews
Number of ratings44
Update frequencyEvery 11 months — betterEvery 39 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#189 — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS14.0 — better16
Further details — not scored
Size5 MB14 MB
Age rating4+4+
DeveloperAtipik SAJan-Hendrik von Kuick

Customer experience

Splash°

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews11 reviews
Positive81.8%
Neutral0.0%
Negative18.2%

Cyanometer

All ratings4 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Splash°

No in-app purchases

None

Cyanometer

No in-app purchases

Questions

Is Splash° free?
Splash° is free to download, with no in-app purchases.
Is Cyanometer free?
Cyanometer costs $0.99, with no in-app purchases.
Which has better reviews, Splash° or Cyanometer?
Splash° is rated higher. Splash° averages 3.3 out of 5 from 4 ratings, while Cyanometer averages 2.8 from 4 ratings.
Do Splash° or Cyanometer have ads?
Neither Splash° nor Cyanometer shows ads.
Which is updated more often, Splash° or Cyanometer?
Splash° ships an update every 11 months, and Cyanometer every 39 months. Most recently, Splash° was updated on September 21, 2026 and Cyanometer on October 9, 2026.

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