BaroWatch Barometer
Barometer for iPhone & Watch
$0.99 · Designed for iPad. Not verified for macOS.
BaroWatch turns your iPhone, iPad and Apple Watch into a precision barometer. Track atmospheric pressure changes, spot weather trends, and get notified before storms arrive.
WHY BAROWATCH
• On every device — iPhone, iPad and Apple Watch share readings seamlessly
• Total privacy — no cloud, no servers, no tracking, no ads
• Open standard units — hectopascals (hPa), the unit pilots and meteorologists use
KEY FEATURES
Pressure measurement
• Reads from the built-in barometer in iPhone (6 and newer), every iPad with iPadOS 17+, and Apple Watch
• QFE (raw station pressure) and QNH (sea-level corrected) modes
• Automatic altitude correction via GPS — or set a manual altitude
• Optional manual calibration offset
Charts & visualization
• Line, bar and area charts with smooth gradients
• Color-coded bars highlighting falling, stable and rising trends
• Adjustable time ranges from 1 hour up to 48 hours
• Tap any point to see the exact value, time and source
• Day stripes for easy multi-day reading
• Configurable color thresholds for high- and low-pressure zones
Apple Watch
• Native watch app with full chart history
• Complications for inline, circular, rectangular and corner positions
• Background updates keep readings fresh
Widgets
• Home Screen widgets for iPhone and iPad with sparkline charts
• Lock Screen widgets in inline, circular and rectangular formats
Alerts
• Local notifications when pressure changes rapidly
• Independent thresholds for falling and rising pressure
• Adjustable observation window (15 min to 3 hours) and cooldown
Multi-device sync
• iPhone ↔ Apple Watch: automatic via WatchConnectivity
• iPhone ↔ iPad: peer-to-peer over local Wi-Fi or Bluetooth, paired with a 6-digit code
• No internet connection required
Background freshness
• Optional background location keeps the barometer running while you walk, drive or sleep
• Apple's BGAppRefreshTask schedules periodic readings
• Smart wake-up when Watch data syncs
Privacy by design
• Barometer and altitude data stay on your device
• No analytics, no third-party SDKs, no advertising
• GPS altitude is held in memory only — exact location is never stored
Available in 29 languages.
Whether you're a hiker tracking altitude, a pilot watching QNH, a weather enthusiast spotting fronts, or just sensitive to pressure changes — BaroWatch gives you precise data with full control over your privacy.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Faulty GPS altitudes no longer distort the QNH-pressure.
• A missing sensor permission is now shown.
• Diagnostics report shareable with one tap, without location data.
The developer, Alf Hellmund, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Alf Hellmund
- Size
- 8.5 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 28 more
- English, Bulgarian, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Icelandic, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Alf Hellmund
