Comparison

Windmill Air vs Sereniby

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

Head to head
About

Windmill Air

This app allows you to remotely control your smart air care devices. Set schedules and adjust settings to create your ideal home climate from anywhere.

Highlights
  • Remote product control
  • Set automation schedules
  • Adjust any setting
  • Create ideal home climate
  • Eco-friendly product integration
Read full description

Windmill's air care products are modern, smart, and eco-friendly. Use the Windmill Air app to: 1. Control your products from anywhere! For example, turn on your Windmill AC before you get home, or shut it off in case you forget. 2. Set automation schedules to perfectly match your lifestyle. 3. Adjust any setting with ease, helping you create the ideal home climate!

About

Sereniby

Control your smart air purifier remotely, monitor your baby's room environment in real-time, and receive maintenance alerts. Optimize air quality and comfort with customizable schedules and automatic adjustments for a safe and healthy space.

Highlights
  • Remote smart purifier control
  • Real-time air quality monitoring
  • Customizable schedules
  • Automatic purification adjustments
  • Maintenance reminders and filter ordering
Read full description

Welcome to Sereniby, the essential companion app for your Sereniby smart purifier. Designed by parents for parents, our app enhances your device's capabilities, with features that include: **Smart Controls: Use the app to control fan speed, purification power, and lighting settings. Customize schedules to fit your baby's sleep routine, ensuring optimal air quality and comfort at all times. **Real-Time Environmental Monitoring & Alerts: Track air quality and temperature in your baby's room with real-time updates and alerts, giving you peace of mind that your baby is always in a safe environment. **Auto Purify Mode: Automatically adjust the fan and purifier settings based on air quality readings, ensuring continuous protection without manual intervention. **Maintenance Reminders: Get notified when it's time to replace the HEPA filter, ensuring your device operates at peak performance. Order replacements directly through the app. Download the Sereniby app now and unlock the full potential of your Sereniby today.

Screenshots

Windmill Air4 screens
Sereniby4 screens

Verdict

The call

The clearest difference is rating: Windmill Air at 4.7 against Sereniby's 3.8. Windmill Air also leads on ratings volume (6.2K vs 5). Sereniby's advantage is review sentiment (50% vs 28%) and update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model 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.

ReceptionRating · Positive reviews · Number of ratings

Windmill Air holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: Windmill Air has 6.2K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 28% of Windmill Air's written reviews are positive against 50% of Sereniby's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Windmill Air ships an update every 2 months, Sereniby every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Windmill Air versus Sereniby: the parameters behind the verdict, then further details
ParameterWindmill AirSereniby
PriceFreeFree
Rating4.7 (6.2K ratings) — better3.8 (5 ratings)
Positive reviews27.9% of reviews50.0% of reviews — better
Number of ratings6.2K — better5
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPod — better
Requires iOS16.413.0 — better
Further details — not scored
Size83 MB116 MB
Age rating4+4+
DeveloperThe Air Lab, Inc.Sereniby, Inc.

Customer experience

Windmill Air

All ratings4,163 ratings
Positive91.8%
Neutral1.9%
Negative6.3%
Written reviews197 reviews
Positive27.9%
Neutral9.1%
Negative62.9%

Sereniby

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Windmill Air

Reported bugs

4 issues
  • App unable to maintain accurate room temperature readings
  • Automations not working as expected or reverting settings
  • Connectivity issues causing the app to lose control of the unit
  • Inconsistent behavior when turning the unit on/off or changing settings

Requested features

4 requests
  • Integration with smart home platforms
  • Improved automation and scheduling capabilities
  • More granular temperature and fan speed controls
  • Ability to disable annoying app notifications

Sereniby

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Windmill Air

No in-app purchases

None

Sereniby

No in-app purchases

Questions

Is Windmill Air free?
Windmill Air is free to download, with no in-app purchases.
Is Sereniby free?
Sereniby is free to download, with no in-app purchases.
Which has better reviews, Windmill Air or Sereniby?
Windmill Air is rated higher. Windmill Air averages 4.7 out of 5 from 6.2K ratings, while Sereniby averages 3.8 from 5 ratings.
Do Windmill Air or Sereniby have ads?
Neither Windmill Air nor Sereniby shows ads.
Which is updated more often, Windmill Air or Sereniby?
Windmill Air ships an update every 2 months, and Sereniby every 3 weeks. Most recently, Windmill Air was updated on November 3, 2026 and Sereniby on October 30, 2026.

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