Comparison

Alerte Canicule vs HeatWave

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

Head to head
About

Alerte Canicule

Features
Read full description

Canicule de prevue? Cette application va vous le dire. Voulez-vous savoir si la temperature va remonter dans prochaines heures dans votre département? Utilisez "Alerte Canicule" pour être informe si une vigilance canicule est déclenchée. Vous pouvez meme saisir un département au choix pour savoir si vos proches se trouvent dans une zone de vigilance.

About

HeatWave

This app monitors outdoor and indoor temperatures to alert you when to open or close your windows for optimal home climate control. It uses your HomePod's sensor and local weather forecasts to provide timely notifications, helping you save energy and stay comfortable without an air conditioner.

Highlights
  • Real-time indoor/outdoor temperature display
  • Forecast-based opening/closing alerts
  • 30-minute advance notifications
  • Home screen widgets
  • Privacy-first, no servers or tracking
  • Multi-language support
Features
Read full description

A heat wave's worst trick is making you feel powerless. HeatWave is the simple, beautiful way to take back control of your home's temperature — without an air conditioner. Most of us already know the trick: open the windows when it's cooler outside, shut them when it gets hotter. The problem is knowing exactly when. HeatWave watches the weather forecast for your location and your indoor temperature, then quietly pings you 30 minutes before the air outside is about to cross the air inside. Open up just before it gets cool. Shut up just before it gets warm. That's it. HOW IT WORKS HeatWave uses Apple Weather to fetch a fresh, accurate forecast for your exact location. It uses your HomePod's built-in temperature sensor via Apple's Shortcuts app to know how warm it is inside. A guided setup wizard walks you through everything in under five minutes — tap the shortcut once, point it at your HomePod, then schedule when it runs. The more often the shortcut runs, the more precise your alerts become. HeatWave suggests a sensible minimum (hourly between 7–10am and 6–9pm) and tells you how to fine-tune it further. ON THE DASHBOARD A single screen tells you everything you need to know: • A bold status card that says "Open the windows" or "Shut the windows" right now. • Side-by-side cards showing your live indoor and outdoor temperatures, with timestamps so you always know how fresh the data is. • A countdown to the next change — "Open in 1h 24m" — with the forecast temperature at that moment. • A 12-hour bar chart of upcoming outdoor temperatures so you can plan your day at a glance. WIDGETS FOR YOUR HOME SCREEN Add HeatWave to your home or lock screen and you may never need to open the app. Small, medium, and large widgets show the current recommendation, your inside/outside temperatures, and a live countdown to the next window change. Lock-screen accessory widgets (circular, rectangular, inline) keep an eye on things at a glance. NOTIFICATIONS THAT FIRE 30 MINUTES AHEAD Get a gentle ping half an hour before each crossover, with the projected outdoor temperature so you can decide if it's worth getting up for. A built-in buffer prevents flip-flop alerts when temperatures wobble. WHY HEATWAVE • No air conditioner needed — works with the windows you already have. • Saves electricity and protects you from heat exhaustion in countries unprepared for high temperatures. • Beautiful, friendly UI with subtle haptics and warm gradients. • Privacy-first: everything lives on your device. No accounts, no servers, no tracking. • Fully localised in six languages. REQUIREMENTS • HomePod mini or HomePod 2nd generation (for indoor temperature) • iPhone running iOS 17 or later • Apple Weather (WeatherKit) for outdoor forecasts A heat wave doesn't have to leave you sweating. With HeatWave, your home gets a head start every time the air outside changes. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Alerte Canicule2 screens
HeatWave3 screens

Verdict

The call

The clearest difference is in-app purchases: Alerte Canicule at none against HeatWave's 3. Alerte Canicule also leads on iOS requirement (6.0 vs 17.6). 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. HeatWave sells 3 one-off in-app purchases. Alerte Canicule asks for nothing beyond the download.

Scorecard2 real differences · 6 level
Alerte Canicule versus HeatWave: the parameters behind the verdict, then further details
ParameterAlerte CaniculeHeatWave
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequency—Every 11 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPodiPhone, iPad
Requires iOS6.0 — better17.6
Further details — not scored
Size3 MB29 MB
Age rating4+4+
DeveloperCosmin CremarencoChristopher Hefferman

In-app purchases

None

Alerte Canicule

No in-app purchases

3 purchases

HeatWave

One-time3
  • Coffee Money Tip$2.99
  • Pint Money Tip$4.99
  • Dinner Money Tip$14.99

Questions

Is Alerte Canicule free?
Alerte Canicule is free to download, with no in-app purchases.
Is HeatWave free?
HeatWave is free to download, with in-app purchases available.
Do Alerte Canicule or HeatWave have ads?
Neither Alerte Canicule nor HeatWave shows ads.

Other comparisons