Beginner Full Body A
6 exercises · exact prescriptions
Machine Leg PressBarbell Bench PressMachine Pulldown+3
Barbell Bench Press2 × 8 @ 20 kg
Available now through a remote MCP connection
An AI workout planner that remembers what you actually did.
An AI workout planner turns your goal, experience, equipment, and schedule into a structured plan. Simple Muscle adds the missing feedback loop: connect a compatible external assistant such as ChatGPT or Claude, save the plan to an iPhone tracker, log what happened, and use requested training history for the next adjustment. The connected app workflow uses the assistant you choose rather than locking you to one proprietary coach.
GuideHow the plan → log → revise loop works with a connected assistant.
The workout tracker is native to iPhone; the planning conversation stays in your chosen assistant.
Plan handoff3 workouts saved
Brief
Plan
Log
Revise
Monday
Beginner Full Body B
6 exercises · exact prescriptions
Dumbbell Goblet SquatDumbbell Incline Bench PressMachine Seated Cable Row+3
Beginner Full Body C
6 exercises · exact prescriptions
Machine Leg PressMachine Chest PressMachine Neutral Row+3
Planned templates are writable. Completed workout history remains read-only to the connected assistant.
- 01Brief
Tell the assistant what must fit
Share your goal, experience, days, equipment, session length, and constraints.
- 02Save
Create the whole prescription
Save named workouts with day labels, ordered exercises, sets, reps, load, and notes.
- 03Log
Train from the iPhone plan
Record the sets, reps, weight, or duration you actually complete.
- 04Revise
Change the future from evidence
Review requested history, see the reason, and approve a future template change.
Planner decision checklist
A useful plan has to survive contact with the gym.
These capabilities make the difference between an exercise suggestion and a plan you can actually follow. They do not prove that any plan is safe or optimal.
CapabilityWhy it mattersSimple Muscle workflow
Uses real constraints
The plan has to fit actual days, time, and equipment.
Brief the connected assistant in normal conversation before it writes anything.
Produces a complete prescription
An exercise list alone is not a followable plan.
Workouts include ordered exercises, sets, reps or duration, weight targets, notes, and day labels.
Fits the training environment
Every movement needs to resolve inside the tracker.
The assistant selects exercises from the Simple Muscle catalog.
Records completion
A plan cannot improve from memory or guesses.
The iPhone app stores completed workouts and set details.
Separates plan from history
Future work should change without rewriting what happened.
Templates are writable; completed history is read-only to connected assistants.
Supports deliberate revision
Changes should follow adherence and performance.
The assistant can request recent sessions and exercise history before proposing an update.
Production connector result
One request became three saved workouts.
This plan was returned by the live Simple Muscle connector in Claude on August 11, 2026. It contains no completed personal history. The starting loads are examples, not recommendations for another person.
Planning brief
“Create a three-day full-body strength plan for Monday, Wednesday, and Friday. I have 45 minutes, train in a commercial gym, and want simple progression. Use exercises available in Simple Muscle and show me the plan before saving it.”
A real planning conversation should ask for missing baseline information or use clearly conservative placeholders. Review every target before training.
Workout overview
Compact view of Simple Muscle templates
3 workouts18 exercises
Beginner Full Body A
6 exercises
- Machine Leg Press2 × 10 @ 30 kg
- Barbell Bench Press2 × 8 @ 20 kg
- Machine Pulldown2 × 10 @ 20 kg
- Kettlebell Romanian Deadlift2 × 10 @ 12 kg
- Dumbbell Seated Overhead Press2 × 10 @ 6 kg
- Cable Side Bend2 × 12 @ 15 kg
Beginner Full Body B
6 exercises
- Dumbbell Goblet Squat2 × 10 @ 10 kg
- Dumbbell Incline Bench Press2 × 10 @ 6 kg
- Machine Seated Cable Row2 × 10 @ 20 kg
- Dumbbell Feet Elevated Glute Bridge2 × 10 @ 10 kg
- Cable Rope Face Pulls2 × 12 @ 15 kg
- Dumbbell Side Bend2 × 12 @ 6 kg
Beginner Full Body C
6 exercises
- Machine Leg Press2 × 12 @ 30 kg
- Machine Chest Press2 × 10 @ 20 kg
- Machine Neutral Row2 × 10 @ 20 kg
- Kettlebell Sumo Deadlift2 × 10 @ 12 kg
- Dumbbell Lateral Raise2 × 12 @ 4 kg
- Kettlebell Farmers Carry3 × 10 @ 12 kg
Result verified through the production MCP connection
The second prompt matters
Do not let the plan revise itself from guesses.
After training, ask the assistant to read only the history it needs, summarize what changed, and show the smallest proposed adjustment before saving it.
Review first · no edit
“Review my last four weeks. Summarize consistency and the exercises where my completed reps or load changed most. Do not edit anything yet.”
Then propose
“Recommend the smallest justified adjustment for next week. Explain the evidence, show the proposed template change, and wait for my approval before saving it.”
Future templates · writableCompleted history · read-only
Three common workflows
Choose where planning and tracking should live.
Each model can be useful. The tradeoff is between setup, continuity, and how much control you keep over the assistant and the workout record.
01
Chat-only AI plan
Strength
Fast and flexible
Limitation
You must copy the plan and keep supplying updated history manually.
02
Workout app with built-in AI
Strength
Planning and tracking may be integrated
Limitation
The coach, model, interface, and pricing are tied to that app.
03
External AI + Simple Muscle
Strength
Keep a preferred compatible assistant while the tracker supplies structured plans and history
Limitation
Requires connector setup; iPhone cloud synchronization is paid after the trial.
Want a plan in front of you before setting any of this up? The free workout plan generator builds one on this site, then this loop is what makes it improve.
What personalized really means
The assistant can use context. It cannot observe you.
A plan becomes more specific when the assistant can use what you provide and the structured Simple Muscle data it requests after authorization.
Goal and recent training experience
Weekly availability and session duration
Equipment and exercise preferences
Current plan and scheduled days
Completed sets, reps, load, and duration
Per-exercise history and training frequency
What the data cannot establish
- The assistant does not observe technique through a camera.
- It cannot feel pain, fatigue, symptoms, or readiness.
- Workout history is not a diagnosis or medical clearance.
- It does not replace a qualified clinician or coach.
- You remain responsible for reviewing suggestions and tool actions.
The iPhone workout experience
The plan becomes a record you can use again.
Simple Muscle stays focused on the gym floor: follow the structured plan, log each set, use the rest timer, and keep completed sessions available for later review.
Native logging
Sets, reps, load, duration, and rest
Gym-floor tools
Timer, notifications, and supported Live Activities
History and progress
Completed sessions and per-exercise views
Local-first core
Free offline tracking without an account
Exercise coverage
206 bundled exercises plus custom strength exercises
Remote context
Requested data after authorization and sync
Connection and data boundaries
One connector. Explicit access. Clear tradeoffs.
Setup takes place in a compatible remote MCP host. Provider plan, workspace, and administrator restrictions can apply.
Connect
Add the Simple Muscle MCP URL, sign in, approve the connection, and enable it in the conversation.
Open setupAuthorize requested data
Connecting does not upload the full history in bulk by default. Provider privacy controls apply to the information it receives.
Read privacy detailsUnderstand sync
Local tracking is free and offline. Cloud backup and sync continue as a paid feature after the seven-day trial; without sync, new local workouts are not current remote context.
Is this an AI personal trainer?
It handles part of the planning job, not the human role.
It can turn your constraints into a workout plan, use the training data you choose to connect, and revise future workouts. It is not a human personal trainer and does not provide live supervision, camera-based form correction, diagnosis, rehabilitation, or emergency judgment.
Ongoing AI reviewQuestions
AI workout planner FAQ
What is an AI workout planner?
An AI workout planner turns goals, experience, schedule, equipment, and constraints into a training plan. A useful result includes complete workout prescriptions, not just a list of exercises.
How is Simple Muscle different from an AI workout generator?
A generator usually ends when it returns the plan. Simple Muscle lets a compatible external assistant save structured workouts, while the iPhone app records completion and makes requested history available for a later revision.
Does Simple Muscle include its own AI coach?
No. You choose a compatible external assistant such as ChatGPT or Claude. Simple Muscle is the structured workout tracker and authorized connection layer.
Can ChatGPT or Claude create a complete workout plan in Simple Muscle?
Yes. After authorization, a compatible assistant can create a two-to-seven-workout plan in one operation using exercises from the Simple Muscle catalog, with exact prescriptions and schedule labels.
Can the AI change workouts I already completed?
No. Connected assistants can analyze completed sessions, but completed history is read-only. Changes apply to future workout templates.
Does the assistant automatically receive all my workout data?
No. Connecting does not upload the full history in bulk by default. The assistant requests specific plans, sessions, or exercise history through authorized tool calls.
Can I use the tracker and MCP connection for free?
Core local iPhone tracking works free and offline, and the dashboard and MCP connection do not require the iOS subscription. Continued cloud backup and synchronization after the seven-day trial is paid.
Does Simple Muscle work on Android?
The native workout tracker is currently available for iPhone. There is no Android app.
Is an AI workout planner a replacement for a personal trainer?
No. It can help create, organize, and revise a plan, but it does not provide live supervision, camera-based form correction, diagnosis, or professional accountability.
What should I do if I have pain, an injury, or a medical condition?
Stop a painful movement and seek an appropriate qualified professional. Workout history cannot establish medical readiness, diagnose an injury, or provide rehabilitation advice.
Plan once. Log honestly. Revise deliberately.
Put your chosen AI on top of a real workout record.
Start with a complete brief, review the proposed plan, then connect it to the iPhone tracker you will use in the gym.