Read
Your plans, logged sets, and progress
ChatGPT can look at your workouts, completed sessions, per-exercise history, and the exercise library with demo videos.
Published in ChatGPT
Connect ChatGPT to your real workouts.
Add Simple Muscle to ChatGPT and it can write workouts straight into your account, read the sets you log on iPhone, and adjust the plan from there.
Published in the ChatGPT plugin directory
You need a free Simple Muscle account and access to plugins in ChatGPT. Availability can depend on your ChatGPT plan, region, workspace, and administrator settings.
Example conversation
Upper body workout for Wednesday, 45 minutes, commercial gym. Save it to Simple Muscle.
ChatGPT
Saved Upper Strength for Wednesday: bench press, pulldown, seated overhead press, and cable wood chopper. Three sets each, starting light. Tell me how it feels and I’ll adjust.
Upper Strength saved · 4 exercises · 32 min
Setup
Connect ChatGPT in 4 steps.
Add Simple Muscle, sign in, and ask for your first workout.
Add Simple Muscle to ChatGPT
Opens the Simple Muscle listing in ChatGPT.
- 1
Open the Simple Muscle listing
Select Add Simple Muscle to ChatGPT above. It opens the Simple Muscle listing inside ChatGPT. - 2
Install it
Select Install on the listing. On some screens the control is a plus icon. - 3
Sign in to Simple Muscle
When ChatGPT asks to connect, sign in with your Simple Muscle account and approve the connection. Don’t have one yet? It takes a minute and is free. ChatGPT never sees your password. - 4
Ask for your first plan
Enable Simple Muscle in a chat and describe what you want to train for, or use the first-plan setup. To train with the plan in the gym, download the iPhone app and sign in with the same account. iPhone sync is free for 7 days, then $5 a month or $50 a year.
Install guidance updated October 27, 2026. Provider menus can change.
Your training, in the conversation
Plan, review, and adjust.
ChatGPT can use your saved plans and logged workouts to help with your next session. Completed workouts stay unchanged.
- You sign in to Simple Muscle the normal way. ChatGPT never gets your password or an API key.
- Disconnect Simple Muscle from ChatGPT at any time to stop further access.
Change
The workouts you plan to do
It can save a complete multi-day plan, then edit exercises, sets, reps, weight, notes, order, and training days. You see the draft before it is saved.
Protected
What you already completed
Finished sessions stay read-only. ChatGPT can analyze them, but it cannot edit or delete them.
First conversation
Try these after connecting.
“Create a three-day strength plan for Monday, Wednesday, and Friday. Use exercises available in Simple Muscle and save the complete plan.”
“Review my completed workouts from the last four weeks. Show my training frequency and where my volume has changed most.”
“Use my recent bench press history to propose a conservative target for next week, and let me review the draft before saving.”
Questions
Before you connect
Is this the same as pasting a workout prompt into ChatGPT?
No. A prompt only gives ChatGPT the details you type. With Simple Muscle added, ChatGPT works with your saved plans and the sets you actually logged, and it can save the plan it writes instead of leaving it in the chat.
Where do I see the plan ChatGPT saved?
Inside Simple Muscle in ChatGPT, in your account on simplemuscle.ai, and in the iPhone app once you sign in there with the same account.
What if I can’t install it?
Availability can depend on your ChatGPT plan, region, workspace, and administrator settings. Open the listing while signed in to ChatGPT and check your workspace’s plugin access if the install control is missing.
Can ChatGPT change workouts without asking?
ChatGPT can use the editing tools you authorized, and ChatGPT controls how it confirms changes with you. Review proposed changes and confirmations, especially when it removes an exercise or deletes a workout.
Can ChatGPT change a workout I already completed?
No. Completed sessions are read-only. ChatGPT can read and analyze them, while edits apply only to workouts you plan to do.
Do I need a separate OpenAI API account?
No. This runs inside ChatGPT with the account you already have. You only sign in to Simple Muscle when ChatGPT asks to connect.
For provider availability and setup details, see OpenAI’s plugin documentation.
Give ChatGPT a place to save the plan.
A free Simple Muscle account is all ChatGPT needs. To train with the plan on iPhone, sign in to the app with the same account. iPhone sync is free for 7 days, then $5 a month or $50 a year.