Comparison

Ventify vs Schmuddelwetter

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

Head to head
About

Ventify

This app analyzes indoor and outdoor conditions to advise on optimal ventilation for humidity control. It converts relative humidity to absolute values, providing clear recommendations on whether airing out a room is beneficial. Supports HomeKit and automatic weather data retrieval.

Highlights
  • Absolute humidity calculation
  • Ventilation recommendations
  • HomeKit integration
  • Automatic weather data
  • Celsius and Fahrenheit support
  • Sensor integration
Features
Read full description

Ventify helps you find out whether airing out your room will increase or decrease its humidity. Relative humidity depends on temperature and does not reflect the actual amount of water in the air. However, when ventilating, absolute humidity is what matters. That’s why fresh outside air, even with seemingly low relative humidity, can still raise the humidity indoors. Ventify converts relative humidity into absolute values and gives you a clear recommendation on whether ventilating makes sense. Convenient and automatic: Ventify supports HomeKit, current weather data, and both **Celsius and Fahrenheit**. You can select a room with temperature or humidity sensors, so Ventify automatically uses these values. Alternatively, you can define a location from which weather data is automatically retrieved. This way you save manual input and get results even faster.

About

Schmuddelwetter

Get detailed weather forecasts, animated radar, and severe weather alerts for Germany. Customize rain predictions, view storm and wind maps, and receive personalized warnings. Includes a daily weather report and augmented reality sun finder.

Highlights
  • 60-minute precipitation forecast in 5-minute steps
  • Animated rain radar with timeline
  • Severe weather warnings (DWD)
  • Customizable rain alerts
  • Storm, wind, and cloud maps
  • Daily weather report
  • AR sun finder
Features
Read full description

This version mainly brings improvements and fixes: • Switch off the seagull: Under Settings, Appearance, you can turn the seagull off. It then disappears from the whole app, and the app icon becomes a cloud • Lock Screen: The rain graph no longer gets stuck on an old reading • Widgets, the Lock Screen and Apple Watch now follow the rain radar. When the radar shows no rain, they show dry weather too • Thunderstorms show up more reliably in widgets and on Apple Watch • The rain card now tells you how long the rain will last • Day and night follow the position of the sun at the chosen place • Apple Watch: Complications are no longer cut off, in English and on smaller watches too. Corner complications show their scale again

Screenshots

Ventify4 screens
Schmuddelwetter4 screens

Verdict

The call

The clearest difference is price: Schmuddelwetter at Free against Ventify's $0.99. Schmuddelwetter also leads on update cadence (every 10 days vs every 2 months). Ventify's advantage is in-app purchases (none vs 3). On review sentiment, ads, device support and iOS requirement 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

Schmuddelwetter is free to download; Ventify costs $0.99 up front. Schmuddelwetter sells 3 one-off in-app purchases. Ventify asks for nothing beyond the download.

UpkeepUpdate frequency

Ventify ships an update every 2 months, Schmuddelwetter every 10 days. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 4 level
Ventify versus Schmuddelwetter: the parameters behind the verdict, then further details
ParameterVentifySchmuddelwetter
Price$0.99Free — better
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.617.0 — better
Further details — not scored
Size1 MB100 MB
Age rating4+4+
DeveloperJohannes BauerDennis Schweitzer

Customer experience

Ventify

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Schmuddelwetter

Written reviews27 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Ventify

No in-app purchases

3 purchases

Schmuddelwetter

One-time3
  • Small Fries$1.99
  • Large Special Fries$3.99
  • Lifetime Fries Supply$8.99

Questions

Is Ventify free?
Ventify costs $0.99, with no in-app purchases.
Is Schmuddelwetter free?
Schmuddelwetter is free to download, with in-app purchases available.
Do Ventify or Schmuddelwetter have ads?
Neither Ventify nor Schmuddelwetter shows ads.
Which is updated more often, Ventify or Schmuddelwetter?
Ventify ships an update every 2 months, and Schmuddelwetter every 10 days. Most recently, Ventify was updated on November 8, 2026 and Schmuddelwetter on November 6, 2026.

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