New Privacy setting: you can now turn off anonymous usage analytics whenever you want. We only measure which features get used and where people get stuck — never your health data, workouts or email. Plus internal improvements.

Mixed-language UI bug fixed. TrainCurve now follows your iPhone language automatically across 9 languages (English, Spanish, French, German, Italian, Portuguese, Dutch, Chinese, Japanese, Korean). Added a new Tools tab with 5 free calculators: heart-rate zones, FTP test, VO2 max, power zones, and TSS.

TrainCurve 1.3 — Train the way your wrist does. NEW: Apple Watch live workouts — start a session on your wrist, glance at your phone for live HR and elapsed time, pause or end from either device. NEW: Bluetooth heart-rate strap support — pair any standard chest strap (or your WHOOP in Broadcast HR mode) for direct, low-latency live HR during workouts. NEW: Strength workout logging — track exercises, sets, reps, weight, and RPE (0–10) right from your iPhone. Copy from your last session to log a pyramid in seconds. NEW: Health source picker — choose which device feeds your sleep, HRV, resting heart rate, and other recovery metrics, so your recovery score reflects the one you trust most. Sources view — audit every connected device and its last sync time in one place.

WORKOUTS ON YOUR WATCH Start, pause and end a workout straight from your Apple Watch, with live heart rate, energy and distance. Finished workouts are saved to Apple Health. LIVE ON YOUR IPHONE The workout running on your wrist is mirrored on your phone, and you can pause or end it from there. HEART RATE STRAPS Connect any Bluetooth heart-rate strap, or a wearable broadcasting in standard heart-rate mode. ONE DEVICE PER METRIC If you wear more than one tracker, TrainCurve now picks a single source for sleep, HRV and resting heart rate instead of blending them.

Now in Spanish, French, Italian and Portuguese. MORNING BRIEF Wake up to a notification that tells you where you stand: your recovery score, your stress level, how long you slept, and how much strain your body has budget for. It arrives when you actually wake up — TrainCurve notices when you turn off your Sleep Focus — with a backup time if you'd rather keep it simple. STRESS New stress reading, from your overnight HRV and resting heart rate measured against your own 30-day baseline. Shown on the Recovery tab and in your morning brief. Your recovery now refreshes in the background, so your brief is about last night — not the last time you opened the app.