Gradient

Light Android app for ERG workouts, heart-rate rides and real climbs on a smart trainer, with no account and no internet access

Innovation: rides by heart rate set the trainer's power to bring your heart into the zone, and show the heart rate you should expect by now because the heart lags behind the effort

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Get it on Google Play

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A Sweet Spot 3x10 workout in Gradient on an Android phone in ERG at 225 W: the third of eight steps with 6:00 left, a 225 W target against 226 W of 3-second power, the next step (5:00 recovery at 138 W) and the workout profile in zone colours with an intensity button at 100 %.
Gradient · gradient.bike
Gradient riding Alpe d'Huez: an 8.8 % grade sent to the trainer in simulation, 10.4 km and 815 m of climbing to go at 13.2 km/h, the next 500 m at +8.6 %, and the climb's profile coloured by grade with a difficulty button at 100 %.
Gradient · gradient.bike
Gradient's indoor ride page: ride time, clock, 225 W of 3-second power in zone 4 at 90 % of FTP, cadence 89 rpm, speed 21.1 km/h, heart rate 153 bpm at 83 % of maximum and the trainer's ERG resistance.
Gradient · gradient.bike
Gradient's last-five-minutes page: graphs of 3-second power against the trainer's resistance over the FTP line and of heart rate below its maximum, on coloured zone bands.
Gradient · gradient.bike

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About

Gradient is an Android app (Android 12 or later, phones and tablets) that connects to a smart trainer over Bluetooth and sets the resistance for you. 18 ready workouts, from endurance and sweet spot to threshold 2×20, over-unders, VO2 max, 30/30s, Tabata, a ramp test and a 20-minute FTP test, run in ERG mode with targets in % of FTP or watts, ramps and cadence goals; you can make them 5 % harder or easier or skip a step at any time. In heart-rate mode the app sets the power that brings your heart into the zone and keeps it there, made for long Zone 2 rides and aerobic intervals. Real routes (the five Monuments, Alpe d'Huez and the Norseman bike leg) send every change of grade to the trainer at 0 to 150 % difficulty, with your speed worked out from your power, weight and the road. The last page shows the route as a simple 3D road, or an endless road on a free ride, and a pacer rider in red can ride the same road at a power you choose. Free browser tools on the site draw routes on a map (also exported as GPX), build workouts from power or heart-rate steps and analyse the rides; your own routes and workouts load into the app as CSV files. Every ride is saved on the phone as a FIT file to take to Strava, Garmin Connect, TrainingPeaks, intervals.icu or any app that reads FIT. Works with Bluetooth FTMS trainers, Tacx trainers on older firmware, power meters, cadence and speed sensors and heart-rate straps. No account, subscription, ads or tracking, and the app has no internet access. In early access on Google Play. Published by Verlibr OU in Tallinn, Estonia.

Features

  • ERG mode
  • Workouts
  • Routes
  • Own routes
  • Bots

Sends rides to

  • Any tracker, by file (FIT, TCX…)

In these lists

Sources

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