Gym Buddy: Rhino

A trainer in your pocket. A log in your hand.

Gym Buddy AI plans your workouts and tracks them set by set. Describe what you want to train, in plain language, and Rhino, your AI trainer, writes the session as a table of exercises, sets, reps and weights. Save it, run it, and every finished session counts towards your streak.

PLAN WITH RHINO

• Tell Rhino your goal, how long you have and what equipment is around
• Get a complete workout back in seconds, with starting weights
• Keep talking until it is right: swap exercises, make it lighter, make it shorter
• Ask Rhino to revise a saved workout: easier on the knees, harder, more back work
• Strength, cardio, timed holds and stretches, supersets

TRAIN SET BY SET

• One card per exercise showing the current set's weight and reps
• Tick off each set as you finish it; the rest timer starts on its own
• Timed sets get a Start button, a 3-second lead-in and a countdown that buzzes when the hold is done
• Tap a weight or reps chip to adjust it, with quick +/- controls
• Edits are saved back into the workout for next time

ON YOUR LOCK SCREEN AND YOUR WRIST

• The whole workout runs on the Lock Screen and in the Dynamic Island: exercise, set, heart rate and rest countdown, with buttons to complete a set, add 30 seconds or skip the rest without unlocking
• Apple Watch app with live heart rate and zone, the current set, and the same controls on your wrist
• Heart-rate zones from warm-up to maximum, from Apple Watch (or AirPods Pro 3 on iOS 26)
• Sessions save to Apple Health with average and peak heart rate

YOUR GYM

• Find your gym and see the equipment other members have listed
• Add it all in one tap, and Rhino only plans exercises you can actually do
• Publish your own list when you are ready, so the next person benefits

STAY CONSISTENT

• A daily streak that grows with every session
• An activity heatmap of your last few months, shaded by how much you did
• Personal records, last-time hints on every set, estimated 1RM
• Your next workout is recommended for you, so your split stays balanced

ASK ANYTHING

• Chat with Rhino about technique, recovery or nutrition
• Ask mid-workout and Rhino knows exactly where you are in the session

YOUR DATA STAYS YOURS

• No account required, no analytics, no ads
• Workouts and history are stored on your phone
• Sign in with Apple or Google only if you want your workouts backed up and restored on a new phone; delete the account and its backups any time
• Only the text of your chat with Rhino is sent to generate a reply

Rhino provides general fitness information, not medical advice. Consult a professional before starting a new programme, and train within your limits.