Ventilate vs FLhour
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ventilate
This app provides personalized guidance on when to open or close windows and where to place fans based on local weather and indoor temperature. It helps optimize home cooling by suggesting the use of outdoor air when it's cooler, potentially reducing air conditioning use.
- Per-window advice (close, crack, open wide)
- Fan placement guidance
- Weather-based timing
- Outdoor air cooling optimization
- Indoor temperature history chart
- Gentle reminders
- Home Screen widget and Siri integration
Read full descriptionHide full description
Ventilate tells you when to open or close each window to cool your home with outdoor air, and where to place a fan. It is designed for hot homes in summer and during heat waves, with or without air conditioning. Open when outdoor air is cooler than the room. Close when it is warmer, so your home does not pull in heat. If you have AC, check the windows first: when outdoor air can do the work, you can run the AC less. Ventilate does not estimate your electricity bill. USE IT TO • Cool a house or apartment without AC: it tells you when outdoor air is cooler than the air inside. • Use less AC: open windows first when outdoor air can do the work. • Cool your home at night: it tells you when night air can flush out the heat, and when it cannot. • Get through a heat wave: it tells you which windows to keep closed, including windows facing the sun. • Place a fan: with windows on one side, place a floor fan on the sill facing into the room. With windows on opposite sides, face the fan out of the exhaust window to pull cooler air through your home. HOW IT WORKS • It compares the local forecast with the indoor temperature you record. • It knows which direction each window faces, so sunlight on that side counts. • Each window gets one recommendation: close, crack open, open wide, or add a fan. • The advice follows the forecast throughout the day instead of using a fixed schedule. • A reminder arrives before the next recommended change. • It provides advice only. It does not control an air conditioner, thermostat, or smart home device. ON YOUR IPHONE • The dashboard shows how your indoor temperature has changed since yesterday. • History covers indoor and outdoor temperatures over 24 hours, 7 days, and 30 days. • A Home Screen widget and Live Activity show the advice without opening the app. • Ask Siri what to do with your windows or when the next change is, or record your indoor temperature by voice. The same actions work in Shortcuts. • Guides cover hot nights and heat waves. SETUP No account required. Point your iPhone at each window once so Ventilate can record which direction it faces. Record your indoor temperature whenever you can. A thermometer helps, but you can start without one. The forecast requires an internet connection. VENTILATE PRO OPTIONAL SUBSCRIPTION • Adds outdoor air quality, UV index, and humidity to the dashboard, plus pollen information in Europe. • When outdoor air is cooler but polluted or muggy, it opens the window less or keeps it closed. • On days with high UV levels, it closes windows facing the sun. • If you say you are sensitive to pollen, windows open less on high-pollen days. • Adds the next 24 hours as curves showing window advice and outdoor conditions. Window advice, history, the widget, and the guides are included without a subscription. Payment is charged to your Apple ID account upon confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your App Store account settings. Terms of Use: https://getventilate.app/terms Privacy Policy: https://getventilate.app/privacy
FLhour
This app helps you track and verify volunteer hours by minting them as digital certificates. Discover local opportunities, track your time accurately, and build a verifiable record of your community contributions.
- Discover local volunteer opportunities
- Accurate time tracking with auto-pause
- Mint verifiable digital certificates
- Personal collection of contribution records
- Identity-verified contributions
- Live session tracking on Lock Screen/Dynamic Island
Read full descriptionHide full description
FLhour turns the hours you give your community into a permanent, verifiable record. Find a Garden near you, contribute your time, and mint a FLhour. These are serialized certificates of the fractional or full hour you put in, complete with before-and-after photos. HOW IT WORKS • Discover Gardens on the map around you. • Start a session when you arrive and begin contributing. • The timer only counts while you're at the Garden and auto-pauses when you step away, so every FLhour reflects real contributions. • Follow your session live from the Lock Screen and Dynamic Island. • When you're done, mint your FLhour: a certificate with a permanent serial number, your hours, and your photos. YOUR FLHOURS, YOUR RECORD Every FLhour you mint is yours to keep - a clear, tamper-evident record of the time you've given, organized in your personal collection. A VERIFIED COMMUNITY FLhour is identity-verified. A security check keeps every contribution attributable to a real person. COORDINATE LOCALLY See where help is needed and respond to open offers at gardens in your area. Built for iPhone. Your location is used only to show gardens near you and to certify your FLhour sessions.
Screenshots
Verdict
The clearest difference is in-app purchases: FLhour at none against Ventilate's 2. FLhour also leads on ratings volume (5 vs 1). Ventilate's advantage is update cadence (every 5 days vs monthly). On price, rating, 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
Both are free to download. Ventilate sells 2 in-app purchases, starting at $0.99 per 7 days. FLhour asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Ventilate against 5.0 for FLhour. That said, the two scores are not equally well evidenced: FLhour has 5 ratings behind it against 1, so its average is the more settled of the two.
Ventilate ships an update every 5 days, FLhour monthly. Both last shipped on October 31, 2026.
| Parameter | Ventilate | FLhour |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (5 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 5 days — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 18.5 — better |
| Further details — not scored | ||
| Size | 16 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | Vivace App Studio | FLhour LLC. |
Customer experience
Ventilate
FLhour
In-app purchases
Ventilate
- Weekly Ventilate Pro$0.997 Days
- Yearly Ventilate Pro$9.991 Year
FLhour
No in-app purchases









