SensAI vs Strength IO

Meet SensAI - your training partner that adapts to you. Get a plan built around your goals, schedule, equipment, and fitness level. Train with set-by-set guidance and a Coach who adapts your plan through conversation and how you train. MADE FOR IPHONE DUO Open Duo to see Coach beside your schedule, workout details beside your calendar, and activity history beside your results. Fold or unfold during a workout without losing your current set, rest timer, or unsaved edits. A COACH THAT LISTENS Ask for a plan, get feedback on a meal photo, or adjust your week. Coach replies with interactive exercise cards, workout plans, progress charts, and proposed workout changes, right in the conversation. GUIDED WORKOUT TRACKING Follow each set with target weights, set history, and animated form guides. Rest starts automatically between sets. Track your session from the Lock Screen and Dynamic Island, or open Coach and return to your workout in one tap. MORE WORKOUT. LESS PHONE. Start today's workout from Apple Watch. Follow sets, edit weight, reps, time, or distance with the Digital Crown, and control exercise and rest timers. Get a tap when timers end; finish once all sets are complete. With Apple Health access, see live heart rate and active calories. On Apple Watch Ultra, use the Action button to complete sets or skip rest. Add a complication for quick access. Keep iPhone nearby and connected. PLANS CHANGE. SENSAI ADAPTS. Equipment busy? Use Smart Swap to replace an exercise. Need a different session? Smart Modify can shorten your workout, change its intensity, or shift its focus. Just type what you need. YOUR SETS, YOUR CALL Edit upcoming sets or correct completed ones. Apply changes to one set or matching remaining sets, then save. When you add an exercise mid-workout, SensAI automatically uses your previous measurements or estimates a starting point if it's new to you. EVERY WORKOUT, ONE HISTORY See completed SensAI workouts in Activity, with or without Apple Health. Connect Apple Health to include workouts from other apps and devices, and link them to planned sessions to mark them complete. 500+ EXERCISES WITH FORM GUIDES Explore strength, cardio, flexibility, and more, with animated technique guides, step-by-step cues, muscles worked, and equipment needed. WORKS OFFLINE Start and track workouts on iPhone without a signal. Log sets, reorder exercises, and use timers; your data syncs when you reconnect. AI features and fetching new plans need internet. BETTER TRAINING DECISIONS WITH APPLE HEALTH Coach uses HRV, sleep, resting heart rate, body composition, and cardio fitness from Apple Health to tailor training to your readiness. Completed workouts sync back. Works with Apple Watch, Garmin, Oura, WHOOP, and other devices that sync with Apple Health. TRY FREE Get full access free for 7 days. No subscription required to start. Requires iOS 26 or later; Apple Watch requires watchOS 26 or later. Privacy Policy: https://www.sensai.fit/legal/privacy-policy Terms of Service: https://www.sensai.fit/legal/terms-of-service

Effort in. Strength out. Strength IO reads everything you do: your lifts, the runs, rides and games you log in other apps, and your recovery from the Health app. Then it builds the strength session your body can handle today, and tells you why. Start with a free trial of the full app. READY FOR iOS 27 • Recovery HRV: Apple's new overnight measure of heart-rate variability, from Apple Watch Series 12 and Ultra 4. • Heart-rate zones come straight from your Apple Watch. • Siri answers about your readiness and today's workout. WHAT IT DOES • Workouts built for your week: every muscle gets the sets it needs, with the right mix of movements. Your main lifts rotate among your favorites, and accessory lifts vary. • Weights anchored to real effort: each lift's weight comes from your own history. Heavy lifts that load your spine keep a rep in reserve, and tired muscles get pulled back. • A daily overview: where you stand this morning, the one or two things behind it, and what that means for today, plus a note on your training load. • Your whole week counts: logged a run in Strava, a ride on Peloton or a game in Apple Fitness? Strength IO reads it through the Health app and counts it toward your training load and readiness. No double-logging. • Readiness from five overnight signals: HRV, sleep, sleeping heart rate, breathing rate and wrist temperature, each judged against your own normal and combined into one estimate that updates through your day. It shows exactly what's lowering or raising your score. • Training load: your last 7 days against your usual 28, with a clear read on whether you're ramping up too fast, holding steady or backing off. • Records and plateaus: personal records for every lift, and early warning when one stalls. • Privacy first: what the app reads, and where it goes, is set out in plain words on our privacy page. BUILT FOR The multi-sport lifter. If you train 3–4 times a week, wear an Apple Watch, and also run, ride or play, Strength IO reads all of it. STRENGTH IO PRO Strength IO starts with a free trial of the full app, nothing held back. After the trial, a monthly or yearly subscription keeps everything unlocked. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. Manage or cancel anytime in your App Store account settings. Terms: https://strengthio.app/terms Privacy: https://strengthio.app/privacy iPhone & Apple Watch. Estimates based on your data. Not medical advice.