TrueWatt: Power Meter Match
Sync trainer to power meter
$9.99 · Designed for iPad. Not verified for macOS.
TrueWatt makes your intervals perfect by adjusting your smart trainer to math power reported by your pedals/onboard power meter. Hit your intervals perfectly every time.
STOP TRUSTING YOUR TRAINER'S GUESS. START TRUSTING YOUR POWER METER.
If you ride with a power meter on your bike, you know that your smart trainer's numbers rarely match your "real" watts. This mismatch makes indoor training confusing and ruins your data.
TRUEWATT MAKES THEM MATCH.
By bridging your smart trainer and your bike's power meter, TrueWatt forces the trainer to adjust its resistance based on your power meter's data. You get the accuracy of the power meter you race with, combined with the convenience of your indoor trainer.
BUILT BY A TRIATHLETE
TrueWatt was created by a triathlete who got tired of watching two different power numbers disagree mid-interval. Every feature in this app exists because a real athlete needed it on a real training day — not because it looked good on a spec sheet.
HOW IT WORKS
* One Source of Truth: TrueWatt takes the "real" wattage from your power meter and tells your trainer exactly how much resistance to apply.
* Full Data Sync: Connect your smart trainer, your power meter, and your Bluetooth heart rate strap simultaneously for a complete picture of your performance.
* No More "Fighting": Most apps let the trainer guess the power. TrueWatt uses a custom control loop (PowerMatch) to ensure the trainer follows your meter—not the other way around.
* Perfect Workouts: Import .zwo (Zwift) or .erg files. Because the power is accurate, your intervals will be exactly as hard as they're supposed to be.
* Smooth & Reliable: Advanced filtering prevents sudden "surges" or "drops" in resistance, keeping your ride feel smooth even if your cadence changes.
FEATURES FOR SERIOUS RIDERS
* Live Metrics: See power, heart rate, cadence, and resistance in real-time.
* Mini-Player: Collapse the app to a small bar so you can watch videos while you train.
* Apple Health & Export: Sync your workouts to Apple Health or export TCX files to Strava and TrainingPeaks.
* Expert Tuning: Use "Test Mode" to manually adjust how fast your trainer responds to power changes.
COMPATIBILITY
* Required: A Bluetooth (BLE) smart bike trainer AND Bluetooth (BLE) power pedals (or another power meter) are both needed to get the full benefit of TrueWatt -- the app works by bridging the two.
* Works with: Any Bluetooth (BLE) Smart Trainer, any Bluetooth (BLE) Power Meter, and any standard Bluetooth (BLE) Heart Rate strap.
*Hardware: Requires iPhone (iOS 16+) and Bluetooth.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and improvements
The developer, Nils Albertsen, 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
- Nils Albertsen
- Size
- 10.1 MB
- Category
- Sports
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nils Albertsen
