Comparison

Splash° vs Rhyy

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

Rhyy

Features
Read full description

Basel or Rheinfelden: wondering whether the Rhine looks good today? Rhyy gives you the quick pre-swim check on iPhone, Apple Watch and right in your widgets. At a glance, you get water temperature, weather, air temperature, river level, flow and UV index. Rhyy puts the numbers in context, shows how they are developing and suggests a swim window for today and tomorrow. No need to check five different sources before heading to the river. Water quality is more than a row of numbers. Comparison ranges and clear guidance help you understand what oxygen, pH and conductivity mean for your swim – and what those readings cannot guarantee. With Swim Crew, you can anonymously show that you are heading into the Rhine today. Read current community updates, like a post and jump straight to the open form on rhyy.ch when you want to write one. Your swim log stays on your device by default. You can now opt into encrypted sync across multiple devices and rhyy.ch, with no account needed. Add duration, distance, how it felt and a note, then keep your latest swims close at hand. Ideas or something missing? Feedback through the in-app form is very welcome. On Apple Watch, the essentials stay on your wrist. Widgets and complications show water, air, UV, status and the swim window without making you open the full app. Rhyy shows how things look right now. The river still gets the final say: always check conditions on site and only get in when it feels right for you. Rhyy is guidance, not clearance and not a safety or rescue recommendation.

Screenshots

Splash°4 screens
Rhyy3 screens

Verdict

The call

The clearest difference is update cadence: Rhyy at every 11 days against Splash°'s every 11 months. Splash°'s advantage is device support (4 vs 2) and iOS requirement (14.0 vs 17.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Splash° ships an update every 11 months, Rhyy every 11 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Splash° versus Rhyy: the parameters behind the verdict, then further details
ParameterSplash°Rhyy
PriceFreeFree
Rating3.3 (4 ratings) — better—
Positive reviews81.8% of reviews—
Number of ratings4 — better—
Update frequencyEvery 11 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, Apple Watch
Requires iOS14.0 — better17.0
Further details — not scored
Size5 MB10 MB
Age rating4+12+
DeveloperAtipik SAPatrick Habluetzel

In-app purchases

None

Splash°

No in-app purchases

None

Rhyy

No in-app purchases

Questions

Is Splash° free?
Splash° is free to download, with no in-app purchases.
Is Rhyy free?
Rhyy is free to download, with no in-app purchases.
Do Splash° or Rhyy have ads?
Neither Splash° nor Rhyy shows ads.
Which is updated more often, Splash° or Rhyy?
Splash° ships an update every 11 months, and Rhyy every 11 days. Most recently, Splash° was updated on October 4, 2026 and Rhyy on October 15, 2026.

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