Klemy vs Shiftrs

Klemy Cycling runs planned workouts on your Bluetooth FTMS smart trainer. Start Zone 2 Ride, Sweet Spot 2×20 or VO2 5×5, scaled to your FTP, or build your own. The app sets ERG watts, slope or resistance at every step. No virtual worlds, no avatars, no sign-ups. Your ride, your numbers and full trainer control. Workouts - Ready to ride: Zone 2 Ride, Sweet Spot 2×20, VO2 5×5, 40/20s and Over-Unders, scaled to your FTP, plus a Ramp Test that climbs every minute until you stop - Build your own from warmup, intervals and cooldown, with ERG watts, power ramps, slope or resistance for every step - A live chart shows what comes next, on iPhone and Apple Watch - Push the next change back 30 seconds or a minute when you need it - Optional tap on your wrist before each change Riding - Full trainer control: ERG, resistance and slope modes - Mode and target shortcuts for quick changes mid-ride - Set mode, watts, resistance or slope with Siri - Live power, cadence, speed, heart rate, distance and energy - Heart rate and power zones with optional notifications - Heart rate from a Bluetooth strap, AirPods or Apple Watch - Mark a ride as a race, then filter your history to races - Customizable workout layouts on iPhone and iPad - Live Activities and widgets - Body temperature, skin temperature and heat strain for heat training, with compatible Bluetooth sensors - Metric or imperial units - No account, no sign-up, no tracking The app and all in-app purchases are licensed under Apple standard terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Shiftrs is a streamlined app designed for indoor cyclists who want simple control over their smart trainer. Set your target wattage and ride. No complicated workout builders, no subscriptions, no distractions. Works with any smart trainer that supports Bluetooth FTMS (Fitness Machine Service). Compatible with trainers from Elite, Saris, Tacx, Wahoo, and more. Key Features • Quick device scanning and connection • Automatic reconnection if signal drops • Precise ERG mode power targeting • Real-time power, cadence, and speed display Perfect For • Simple endurance rides at steady power • Testing trainer calibration • Warming up before virtual races No account required. No internet connection needed. Just connect and ride.