
Your strongest decade hasn't happened yet.
Get strong enough for the next 20 years, on a plan that bends around bad sleep, sore shoulders and short days.
$19/mo after. Cancel during the trial and you pay nothing.
Not sure yet? Take the free Youthspan Snapshot. 5 minutes, no account.Open the app. Today is already written.
You never see the programming. You see today's session, why it is today's session, and a start button.
Build muscle on plants. No macros, no weighing.

No gram targets, no weighing dinner, no logging every bite. Five checks, and a photo if you want it coached.
A number on day one. A bigger one at Week 22.
Your Youthspan Snapshot gives you a number on day one. Five life tests, not gym tests, that decide how the next 20 years actually go.
Every 22 weeks, you retest. That number moving is the whole point.
Stronger. Faster. Younger. Every week gets all three.
Stronger
Chase records on the big lifts, four weeks at a time. One heavy rep or a set of fifteen, the app remembers your numbers and tells you when you beat them.
Faster
Something quick and explosive comes first in every session, while you're fresh. Jumps, throws, short sprints. It is what keeps you light on your feet and catches you on a curb.
Younger
Balance, coordination and joint-friendly work built into every week, so you can keep training for years, not months.
The list you don't have to keep.
Strength. Muscle. Power. Conditioning. Balance. Mobility. All six facets of functional training appear in the program automatically. None of them is your job to figure out or schedule.
Tell it you slept badly, your shoulder is cranky, or you've got half an hour. Today gets rewritten, not cancelled. That is why people are still here at Week 22.

Twenty years of one-on-one coaching, all of it plant-based. This app is that coaching written down, with me in every demo video. You get what my clients pay hundreds a month for: the right session every day, adjusted to how you actually feel, with a coach at your fingertips.
Derek Tresize · 20 years coaching · B.S. Biology · ACE-CPT · MAT certified · WNBF Pro
“Derek takes a holistic and individual approach to training, focusing on your individual goals and putting together really thoughtful fitness plans. I have seen outstanding results in my strength, mobility and overall cardiovascular fitness.”
“I have been a client of Rootforce for 13 years… Working with Derek has kept me motivated. He is encouraging and supportive.”
Client for 13 years
“I love the app! Super easy to use and jump into. And super customizable.”
Verify: ACE-CPT #T121339 · USREPS listing · WNBF Pro card. More of Derek's work: Vegan Muscle & Fitness · Root Force PT.
Week 1 is written. Start it.
Your first session is ready now. Seven days to decide if it's for you.
Start the 7-day free trialRetest at Week 22. If your Youthspan score hasn't improved and you did the work, full refund.
$19/mo, $159/yr, or $99 once for the first round of 22 weeks. Founding prices for the first 25, locked for life.