Comparison

KNMI Weer vs Aarestation

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

Head to head
About

KNMI Weer

Receive alerts for dangerous weather and earthquakes in your area. View detailed forecasts, precipitation radar, and UV index on interactive maps. Access hourly and daily weather predictions up to 14 days ahead, along with sunrise/sunset times and climate information.

Highlights
  • Dangerous weather and earthquake alerts
  • Zoomable weather maps
  • Hourly and daily forecasts (up to 14 days)
  • Precipitation radar
  • UV index and heat forecasts
  • Sunrise/sunset times
  • Station and citizen measurements
Features
Read full description

Dit kun je met de KNMI-app: • Ontvang meldingen voor gevaarlijk weer bij jou in de buurt met daarbij de risico's en advies • Bekijk op een zoombare kaart waar in Nederland code rood, oranje of geel geldt • De weersverwachting per uur voor jouw plaatsen voor vandaag en morgen • De weersverwachting per dag tot 14 dagen vooruit • Bekijk regen met de neerslagradar • Bekijk het effect van hitte met de hittekrachtverwachting • Bekijk het risico op huidschade met de zonkrachtverwachting • Zonsopkomst- en ondergangstijden • Klimaatinformatie bij de weersverwachting (temperatuur) • Ontvang meldingen voor aardbevingen in Nederland • Kaarten met metingen van KNMI-stations gecombineerd met burgermetingen. Bekijk onder meer de actuele temperatuur voor jouw plaatsen. Hierin kun je bijvoorbeeld zien dat het warmer is in de stad. TOEGANKELIJKHEID EN DUURZAAMHEID Bij het ontwerpen en ontwikkelen van deze app is speciale aandacht besteed aan toegankelijkheid, gebruiksvriendelijkheid, duurzaamheid en kwaliteit. Zo hebben we rekening gehouden met een brede doelgroep inclusief mogelijke beperkingen. De CO2-voetafdruk van de app is zo klein mogelijk gehouden door de regels van Green Software Engineering toe te passen. Verder is de app reclamevrij en is de broncode vrij beschikbaar. OVER HET KNMI Het klimaat verandert, het weer wordt grilliger, de bodem trilt. Nederland veilig en leefbaar houden wordt steeds uitdagender. Het KNMI levert de samenleving dag en nacht onafhankelijke kennis, advies en waarschuwingen over risico's op het gebied van weer, klimaat en seismologie.

About

Aarestation

Features
Read full description

Aarestation – Jump in the Aare? Get your answer in seconds. Instead of checking a weather app, a hydrological data portal, and an air quality site separately, Aarestation shows you everything at a glance: is today a good day for an Aare swim in Bern? THE PAI SCORE – YOUR DECISION-MAKER The PAI algorithm condenses air temperature, wind, humidity, discharge, UV index, and water temperature into a single score from 1 to 10. A high score means the best possible conditions for jumping in. MAI – YOUR VERY OWN SCORE Every swimmer is different. With Mai (Mein Aare Index) you set your own target values and weightings for each factor – turning the general PAI into your personal Mai score, tailored exactly to you. WHAT THE APP OFFERS • PAI Score: the official decision-maker at a glance • Mai Score: your personal, fully configurable score • Aare: water temperature, discharge, and water level in real time • Weather: temperature, wind, humidity, UV, and short-term forecast • Air quality with current AQI values • Pollen levels for the Bern region • AR map view: discover swim spots nearby using your camera • Apple Watch app with watch face complication – your score right on your wrist • Live Activity: current conditions on the Lock Screen and in the Dynamic Island • Configurable Home Screen widget (PAI, Mai, Aare, or air) • Notifications the moment conditions are right • History and trends for the key values • Wind rose and sun chart for wind and sun over the day • Bern webcams – your live view of the Aare • A clear daily report for the perfect overview DATA SOURCES OpenWeatherMap, MeteoSwiss, FOEN (Swiss Federal Office for the Environment) hydrological data, WAQI.info, and Bern Tourism (webcams). NOTE This information is intended to support your assessment of conditions. Decisions about swimming in open water are always your own responsibility. Aarestation is an independent project by a passionate Aare swimmer from Bern. Privacy: https://aarestation.ch/datenschutz

Screenshots

KNMI Weer4 screens
Aarestation4 screens

Verdict

The call

The clearest difference is in-app purchases: KNMI Weer at none against Aarestation's 4. KNMI Weer also leads on iOS requirement (17.0 vs 26.0). Aarestation's advantage is update cadence (every 9 days vs every 2 months). On price, ads and device support 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. Aarestation sells 4 one-off in-app purchases. KNMI Weer asks for nothing beyond the download.

UpkeepUpdate frequency

KNMI Weer ships an update every 2 months, Aarestation every 9 days. The most recent releases landed on November 6, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
KNMI Weer versus Aarestation: the parameters behind the verdict, then further details
ParameterKNMI WeerAarestation
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS17.0 — better26.0
Further details — not scored
Size148 MB163 MB
Age rating4+4+
DeveloperKNMIPeter Bognar

In-app purchases

None

KNMI Weer

No in-app purchases

4 purchases

Aarestation

One-time4
  • Kaffee Silber$0.99
  • Kaffee Bronze$0.99
  • Kaffee Gold$5.99
Show 1 more
  • Kaffee Platinum$9.99

Questions

Is KNMI Weer free?
KNMI Weer is free to download, with no in-app purchases.
Is Aarestation free?
Aarestation is free to download, with in-app purchases available.
Do KNMI Weer or Aarestation have ads?
Neither KNMI Weer nor Aarestation shows ads.
Which is updated more often, KNMI Weer or Aarestation?
KNMI Weer ships an update every 2 months, and Aarestation every 9 days. Most recently, KNMI Weer was updated on November 6, 2026 and Aarestation on October 28, 2026.

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