A coach built for people like you. Tuned to you daily.
Agents4 Fitness is a personal AI coaching app. Choose from 115 specialist AI coaches — GLP-1, postpartum, powerlifting, menopause, HYROX — each built on a specialist coaching methodology, not a chatbot prompt. Yours writes your complete training and nutrition plan from a seven-step intake, then coaches you around the clock: it knows your goals, your equipment, your injuries, your schedule, and it reads your watch. Rough night's sleep, cranky knee, hotel gym: it adjusts the plan and tells you what changed and why. From $15.99/mo; free to start, cancel anytime. Agents4 Fitness is not AI instead of a coach: the platform turns a coaching methodology into an agent, and when the coach platform opens (coming soon) a member's own coach can plug in — plans generated from that coach's methodology, with the coach in the loop. How the coaches are built.
How it works
- Pick your coach: browse 115 specialists — powerlifting, fat loss, postpartum, longevity — each built on a specialist coaching methodology with its own weekly split, progression model, deload rules, and nutrition strategy.
- Tell it everything: a seven-step intake covers your goals, training history, schedule, equipment, injuries, and how you really eat — and becomes a complete week-by-week training plan and a meal plan built from real foods.
- It keeps tuning: log workouts, send a check-in with a photo, sync Apple Health or Health Connect, or just say your week changed — your coach acts on it and tells you what changed.
Find the coach built for you.
Start with your goal, your sport, or your stage of life. Explore each coach's approach, training plan, and price before you choose. No account needed to explore. Plans from $15.99/mo.
Browse all 115 specialist AI coaches, by what you are trying to solve:
- Fat loss, nutrition & metabolic health — Coaches built around how you eat and how your body responds — GLP-1 medication, continuous glucose data, keto, macros, or a straightforward path to a leaner body composition.
- Strength & muscle — Progressive-overload coaching for people who want to lift more and carry more muscle — in a full gym, a garage, or with one kettlebell.
- Women's health — Training and nutrition that account for the cycle, pregnancy and postpartum, PCOS, endometriosis, perimenopause, pelvic floor, and bone density.
- Longevity & active aging — Coaches whose goal is the next forty years, not the next twelve weeks: VO2 max, bone and joint resilience, balance, cognition, and staying independent.
- Endurance & racing — Periodised plans that build to a start line — marathon, trail ultra, HYROX, open water, or a rucking event — with the strength work that keeps you on it.
- Sport-specific performance — Off-mat, off-court and off-piste strength and conditioning built around the demands of one sport — and around the test you have to pass.
- Health conditions & recovery — Movement designed around a diagnosis or a recovery, with load, pacing and progression that respect flare-ups, surgery timelines, and clinical limits.
- Mind, mood & neurodivergence — Coaches that treat consistency as the hard part — built for ADHD, anxiety, trauma recovery, sobriety, and nervous systems that need a gentler on-ramp.
- Fitting training into real life — When the constraint is the calendar, not the motivation: shift work, 60-hour weeks, a desk, a dorm, a newborn, or a team you want to bring with you.
- Mobility, walking & movement practice — Lower-intensity, high-adherence coaching — mobility and flexibility work, Pilates, walking protocols, and dance cardio you will actually keep doing.
- Recovery, sleep & training data — For people who already track: coaches that read HRV, sleep, and wearable data and turn it into the actual decision — train, back off, or deload.
Coaches on this page
- Lose fat while defending strength
- Train for HYROX, not just the gym
- Classical Pilates sequenced for deep-core strength and posture
- Train like a fighter
- Build fitness for the long term
- Strong and steady for decades
- Strong through pregnancy and after
- Macros that change with your training day
- Authentic Latin dance cardio
- Session intensity matched to your daily readiness
- Menopause is a pivot, not a decline
- The gym builds what rolling alone cannot
- Train with your cycle, not against it
- Job-ready strength built for the 24/48
- Your smartest path to 26.2
- Get strong again in 20-minute nap windows
- Movement programmed to support your glucose management
- Stronger fingers, loaded only when they are ready
- Train for the stairs and the shopping bags
- Carry heavy weight over distance, one variable at a time
- Heavy lifts and post-meal walks for PCOS
- Swing speed from the ground up, with your back in mind
- Pull-first strength for a long day pushing
- Sweat to the music and own the steps
- Keep moving without crashing during and after treatment
- Prepare for every event on your next test
- Commercial gym programming for your living room
- Hardstyle strength built with one bell
- Build muscle after forty without wrecking your joints
- Cold exposure timed around your heavy lifts
- Build muscle on plants without the protein gaps
- Maintain your body like you maintain your setup
- Train again with your symptoms setting the pace
- Serve power from your legs, not your shoulder
Why it's a coach that acts, not a chatbot
Nine everyday moments, each one a real change to your real plan: a travel week rebuilt around a hotel gym; a cranky knee swapped out of today's session and carried into the weeks that follow; a rough night on your watch capping today's RPE and trimming volume; a skipped lunch re-portioned across the rest of the day; a flat week turned into a deload week with one message; a check-in read against your last two weeks; a "why" answered from your coach's own philosophy; a cycle phase logged and intensity adjusted; and two coaches held at once, each with its own plan.
- It sees: your logged sets, check-ins, progress photos, and what your watch says overnight.
- It decides — by your coach's rules: the programme's recovery thresholds, plateau protocol, and deload schedule, applied to your numbers.
- It acts: swaps the exercise, re-portions the day, rebuilds the week, writes the deload week you ask for — done in your plan, not suggested.
- It tells you: every change is confirmed in the thread and lands in your plan the moment it's made. Nothing changes silently.
And it doesn't wait to be asked: your coach reads your readiness every day, and a rough night makes that day's session lighter on its own.
Your watch talks. Your coach listens.
Connect Apple Health or Health Connect and your coach reads your HRV, resting heart rate, sleep, and steps every day. When recovery dips, today's session adjusts by your coach's own recovery rules: a full session when you're recovered, around 20% less volume on a controlled day, around 40% less volume with effort capped on a lighter day, and a recovery day when you need one. Planned deload weeks keep their place in the programme, and you can ask for one any time. Direct Oura and WHOOP connections are coming.
Not replacing coaches — multiplying them
Agents4 Fitness's stance: the best coaching is human, and agents exist to enhance it, not substitute for it. The platform turns a coaching methodology into an agent, and coaches keep control of how autonomous it is — Full Auto, or review modes where the AI drafts and the coach approves, adjustable per client. Members get methodology-grade coaching around the clock, with the human expertise at the center.
How it compares
| The job | Generic AI app | Template plans & PDFs | Agents4 Fitness |
|---|---|---|---|
| The coaching brain | One generic model — the same advice for everyone | One plan, written once, sold to everyone | A coaching methodology — split, progression, deload rules, macro strategy — is the brain. Ask why, and you get its reasoning |
| How your plan is built | A template with your body weight plugged in | You buy the plan, then bend your life around it | Deep intake → a complete training + nutrition plan for your goals, equipment, injuries, and schedule |
| When life changes mid-week | You swap the exercises yourself | The PDF doesn't know your gym changed | Say it once — hotel gym, tweaked knee — and the week is rebuilt, with every change confirmed in chat |
| Nutrition | A calorie counter bolted on the side | A macro cheat-sheet on the last page | Real meal plans from a 1,299-food database — swap any food and the plate rebalances |
| What happens to your check-ins | Logged, charted, forgotten | There are no check-ins — you're on your own | Read against your last two weeks — weight, sleep, waist, photos side by side — and folded into the next week it builds |
| Your watch & health data | Syncs, then sits in a graph | Not connected to anything | Sleep, HRV and resting heart rate become a daily readiness score — a rough night trims today's session on its own |
| If you already have a coach | Pretends they don't exist | They wrote it — then you're alone between check-ins | Built for it: when the coach platform opens, your coach captures their method as an agent and plugs in — their rules, their check-ins, with them in the loop |
| What it costs | $10–20/mo for a template | $30–80 up front, zero follow-through | From $15.99/mo — a full, adaptive coaching relationship for less than one PT session |
For human coaches
The self-serve platform to capture your own methodology as an agent is coming soon. What it does, angle by angle:
- Your channel answers. You get paid
- Your coaching method, working around the clock
- Tell your agent what changed. It does the work
- AI-built cohorts for your whole gym
- Turn your existing materials into working agents
Platform facts
- 115 live specialist coaches in the marketplace
- 11 goal categories, from GLP-1 and postpartum to HYROX and BJJ
- A seven-step intake: injuries, equipment, allergies vs preferences, how much you cook
- 1,100+ exercises, each with form cues
- 1,299 real foods — swap any one and the day rebalances
- Subscribe to more than one coach; each keeps its own plan; switch in a tap
- Health sync: Apple Health and Health Connect live today; direct Oura and WHOOP connections coming
- Runs on iPhone, Android and the web (app.agents4fitness.com)
Common questions
What is Agents4 Fitness?
Agents4 Fitness is a personal AI coaching app. You pick from 115 specialist AI coaches — each built on a specialist coaching methodology, with its own training split, progression model, deload schedule, and nutrition strategy — and your coach writes a complete workout and nutrition plan around your goals, equipment, injuries, and schedule. Unlike chatbots that only talk, it changes your actual plan: rebuilding a travel week, swapping an exercise for a sore knee, re-portioning the day when you skip lunch, and easing off when your watch says you didn't recover. Coach subscriptions start at $15.99/mo, cancel anytime. A platform for human coaches to publish their own agents is coming soon.
How is this different from ChatGPT or a generic fitness app?
Two layers of customization no one else combines. First, you don't get one generic model — you choose a specialist coach whose methodology was designed for people like you, down to the weekly split and deload rules. Second, that methodology is tuned to you personally through a deep intake and then continuously from your logs, check-ins, and wearable data. And unlike a chatbot, your coach acts: it rebuilds your actual plan, swaps foods and exercises, and tells you what it changed and why.
How personalized is it, really?
Your plan starts from a seven-step intake — goals, training history, schedule, equipment, injuries, and how you actually eat, down to whether a restriction is an allergy or a preference and how much time you have to cook. From that, your coach writes a complete week-by-week training plan and a meal plan built from real foods. Then it keeps tuning: log a workout, send a check-in with a photo, sync your watch, or just tell it your week changed, and the plan updates. And the methodology itself is alive — when the coaching philosophy behind your agent is refined, your plans and answers reflect it. It is never a static template.
What do I get for the subscription?
One subscription is the whole coaching relationship: a full training plan drawn from a 1,100+ exercise library with form cues, a nutrition plan with food swaps from 1,299 real foods, 24/7 chat with your coach that acts on your plan, daily check-ins with a progress photo and measurements, Apple Health and Health Connect sync, and progression that adapts as you go — including lighter days when your recovery data says you need one, and planned deload weeks. Each coach sets their own price starting at $15.99/mo — a month of round-the-clock coaching for less than a single personal-training session.
Does it work with my watch and health apps?
Yes. Agents4 Fitness connects to Apple Health and Health Connect, so your sleep, heart-rate variability, resting heart rate and steps flow to your coach automatically — no exporting, no screenshots. They feed a daily readiness score that your coach's methodology acts on: a rough night can cap your RPE and trim volume for the day, and a very low score turns the day into walking and mobility. Direct Oura and WHOOP connections are on the way.
Is it free to start?
Yes — creating an account is free and takes no credit card. Browse all 115 coaches, then subscribe to the one that fits to unlock your full training and nutrition plan and 24/7 coaching. Subscriptions are month-to-month and you can cancel anytime in a tap.
Is Agents4 Fitness replacing human coaches?
No — the opposite. Agents4 Fitness exists to enhance and multiply human coaching. The platform turns a coaching methodology into an agent that does the always-on work a person can't physically do: answering at midnight, rebuilding a travel week, rebalancing a meal. Coaches keep control of how autonomous their agent is — Full Auto, or review modes where the AI drafts and the coach approves — adjustable per client. The result is more people getting methodology-grade coaching, with the human expertise at the center.
Can I train with my own human coach on Agents4 Fitness?
That is exactly what Agents4 Fitness is built for — and it arrives with the coach platform, which is coming soon. When it opens, your coach captures their methodology as an agent and you join under it: their methodology drives your plans, with them in the loop — their check-in reviews, their messages, their rules. Coaches choose exactly how hands-on to be — Full Auto, where their agent handles the day-to-day by their rules, or review modes where the AI drafts and the coach approves every word, adjustable per client. Coaches can join the founding list on this page; publishing pays them 80% of every subscription.
What happens to my data?
Your training data, check-ins, and health data are used for one thing: coaching you. They are never sold, and you can delete your account and data at any time from inside the app.
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