Coaching that adapts to you
Founding prices for the first 25 members. Your price is locked for life.
Monthly and annual start with 7 days free and do ask for a card. The 22-week pass is one payment, no subscription.
- ✓The full 22 weeks, daily adjustments, Week 22 retest. One payment.
About $13.25 a month. Three months free compared with monthly.
- ✓Derek's program, adjusted every day
- ✓Youthspan retest every 22 weeks, then your next cycle
- ✓7 days free with a card
- ✓Cancel anytime
Billed monthly.
- ✓Derek's program, adjusted every day
- ✓Youthspan retest every 22 weeks, then your next cycle
- ✓7 days free with a card
- ✓Cancel anytime
Retest at Week 22. If your Youthspan score hasn't improved and you did the work, full refund.
Less than one session with a personal trainer, for a month of coaching.
Twenty years of one-on-one coaching, all of it plant-based. Every workout in the program is one I wrote, and every demo video is me.
Derek Tresize · 20 years coaching · B.S. Biology · ACE-CPT · MAT certified · WNBF Pro
“I am older now and out of shape, so I like that the app gives you the opportunity to modify the workouts. Overall, it's a great program and even if you are older or think you are too out of shape, I would encourage anyone to give it a try!”
“…he is the nicest and most personable trainer you will ever meet, and he works with folks of all different ages and fitness levels. He helped me recover from several injuries and transform my entire diet and physique after years of a sedentary lifestyle.”
“My results using a whole food plant based diet simply amazed me. Yes, it's a lot of work, but the results speak for themselves.”
+11 lb lean mass · −7 lb fat in 12 weeks
“I love the app! Super easy to use and jump into. And super customizable.”
What you get
- ✓The right session every day, adjusted to your time, your gear and how you feel.
- ✓Something quick and explosive first in every session, while you're fresh.
- ✓Balance and joint-friendly work every week.
- ✓Your lift records tracked, so you see the day you beat them.
- ✓Food coaching built on plants. Five checks a day, no macros, no weighing.
- ✓A Youthspan score on day one and a retest every 22 weeks.
FAQ
Will I be charged during the free week?
No. Monthly and annual start with 7 days free. You add a card at the start and Stripe holds it. We never see it. We email you before the free week ends. Cancel in Settings before then and you pay nothing. If you don't cancel, your card is charged for the plan you picked when the free week ends. The 22-week pass is one payment and never renews.
What if it doesn't work for me?
Retest at Week 22. If your Youthspan score hasn't improved and you did the work, you get a full refund.
How is this different from hiring a trainer?
A month of SFY costs less than one session with most trainers. You get the program I've coached for twenty years, every workout written by me, adjusted to your day. What you don't get at this price is me watching your sets.
More questions
Is this a template dressed up as a coach?
No. It's one 22-week periodized program that Derek wrote, every workout, every progression. It uses a rotating emphasis periodization, which means it rotates what you're trying to progress each training phase, and the targets are the capacities we lose fastest as we age: strength, muscle mass, muscle power, cardiovascular endurance, and balance. What changes day to day is the delivery. Tell it your shoulder is cranky and today's pressing gets swapped, not skipped. Tell it you have 25 minutes and you get a real 25-minute session, not a truncated one.
Who actually wrote this?
Derek Tresize, plant-based for all twenty years of his coaching, with a B.S. in Biology, an ACE-CPT, and a WNBF pro bodybuilding card. Every workout in the program is one he wrote, and the exercise demos are him, filmed in his own gym. The app delivers his coaching and adjusts it to your day; it doesn't invent training. There's more about him on the About page.
What happens after Week 22?
Week 22 is retest week: you redo the same five tests you took in the Youthspan Snapshot and see what moved. That's the point of the whole thing, a start line, a finish line, and a number that changed. After that you keep training with the same system on a new cycle. The program has an end; the practice doesn't.
Do I have to eat plant-based?
No. The training is the training either way. But the nutrition side is built plant-first and that's the whole reason it exists. Eating for muscle on plants is a different job, and almost nothing else treats it that way. It's the Daily Five: notice what you ate, one big salad, a serving of beans or lentils or tofu, a serving of plants at every meal, and one more that flexes to what you're training for. No gram targets, no weighing, no logging every bite.
How much of this is software and how much is a person?
The training methodology is 100% human-designed. Derek wrote the complete 22-week program in advance, every workout, progression, and coaching cue. The software manages daily workout delivery and handles real-time adjustments for your time, equipment, and recovery. For meal photo analysis and conversational Q&A, the app utilizes Google's Gemini AI model. The AI operates strictly within Derek's programmed guardrails and cannot invent exercises, alter program structures, or override your plan.
Monthly and annual: your 7-day free trial starts today and your card is stored securely by Stripe. We never see it. If you don't cancel before the trial ends, your plan renews automatically at $19/month or $159/year. Cancel any time from Settings. Cancel during the trial and you won't be charged at all. The 22-week Program Pass is $99 one-time. No subscription, no renewal.