01
Pushing through causes crashes
Generic plans tell you to ignore fatigue and push harder. That leads directly to post-exertional malaise and days spent recovering in bed.
Figuring out how to exercise with chronic fatigue means staying within your limits. This coach programs three 20-minute sessions a week based on your daily energy budget, stopping before you crash.
FlareDay Coach is $19.99/mo · cancel anytime · secure checkout by Stripe

The problem
01
Generic plans tell you to ignore fatigue and push harder. That leads directly to post-exertional malaise and days spent recovering in bed.
02
A rigid schedule assumes you feel the same every Tuesday. When a flare hits, standard apps just mark you as failing to show up.
03
Complicated nutrition plans require hours in the kitchen. On a low-energy day, cooking from scratch is simply out of the question.
The method
01
The plan focuses on showing up and moving gently before adding any volume. You build a habit of movement without crossing the line into exhaustion.
RuleTwo crash-free weeks before you add a single rep.
02
Your plan connects to your wearable data. If your resting heart rate or sleep quality drops, or if you report a flare, the coach dials back the load immediately.
RuleDrops the load if fatigue stays high for two days.
03
Nutrition focuses on simple foods that need almost no time on your feet. You get a daily protein target scaled to your bodyweight and zero-prep menus for bad days.
RulePrograms 4 daily meals that take 15 minutes or less.
04
Before you start, the coach checks what you have in the tank today. Sessions are short, with seated or supine options to manage orthostatic intolerance.
RuleCaps training at 20 minutes with horizontal rest built in.
Your week
Sessions land on these weekdays; the energy check before each one can turn it into the Flare Protocol.
Built to adapt
Connect Apple Health or Health Connect. When sleep, HRV or resting heart rate say you are under-recovered, today's session gets lighter. Planned deloads follow your coach's schedule, and you can ask for one in chat.
Travelling, sore, short on time, missed a meal: tell your coach at any hour. It rebuilds the week or re-portions the day, and confirms the change in chat.
Daily check-ins and progress photos go to your coach, and your plan is adjusted from what actually happened, not what was scheduled.
Is it for you
How this coach works
Your clinician manages your condition and any medication; your coach plans training and food inside the limits they set.
Independent public guidance on exercise for this situation. Listed so you can check it yourself; these organisations have not reviewed or endorsed Agents4 Fitness.
Not medical advice. FlareDay Coach provides fitness and nutrition coaching only. Talk to your clinician before you start, and stop and get medical help if you feel unwell while training.
Pricing
Create your account, check out with Stripe and answer a one-minute intake. FlareDay Coach writes your first plan before you sign in. Month to month; cancel in a tap.
FlareDay Coach
$19.99/ month
Secure checkout by Stripe · cancel anytime
Questions
Something else? Ask your coach in chat once you are in. It answers at any hour.
Your coach runs on an energy budget check. If your fatigue is high or you are in a flare, the coach adjusts the plan to focus on rest and recovery instead of movement.
Training days are capped at 20 minutes. Each session includes built-in horizontal rest and options for seated or supine movement to help manage orthostatic intolerance.
No. The nutrition plan focuses on 4 meals a day that take 15 minutes or less to prepare. It includes flare day and crash-recovery menus that require zero cooking.
The entire methodology is built to avoid PEM. The coach uses a half-in-reserve rule and a 24-72 hour PEM check as a hard stop, rather than a hint to push harder.
Yes. The coach programs seated and supine versions of the movements. You choose the version that fits your orthostatic tolerance for the day.
Your account is free — browse coaches, explore the app, and connect with a coach. Each AI coach is a monthly subscription (priced by coach); cancel anytime in a tap.
It's an AI coach built on a real training methodology for this exact niche. It writes your plans, adjusts them from your check-ins and progress, and answers questions any time — no waiting for office hours.
Your plan is built from YOUR intake — goals, schedule, equipment, injuries, preferences. If something doesn't fit, tell your coach in chat and it adjusts. And you can cancel any subscription anytime.
Your data stays yours. We never sell it, and you can export or delete your account at any time. See our Privacy Policy for the details.
See every health conditions & recovery coachBrowse all 115 coachesHow Agents4 Fitness worksHow Agents4 Fitness compares