Frequently asked questions
The things people ask us most before trying it and once they're in. If you don't see your question, ping us at rensont@gmail.com.
Before you start
Do I need a GPS watch or HR monitor?
No. The free Strava app on your phone tracks with the phone GPS and that's enough for the engine to plan by pace. If you have HR, pace or power even better — the engine uses them when available.
Which sports does it support?
Trail running, road running, road cycling, MTB, swimming and triathlon (with brick day). Each sport has its own archetypes and philosophies; the engine is not "running with a bike next to it".
Does it replace a human coach?
For 80% of amateur athletes, yes: it periodizes, predicts race times, controls load (ACWR), respects your gear and safe ramp. If you want weekly human feedback, invite your coach to Vetta (Coach plan USD 24.99) and work together inside the app.
What does Free include?
Last 30 days of Strava analysis + a blurred demo of the engine's weekly plan. Pro unlocks full history, real engine, race predictions, manual zones and cross-training.
Can I try it before paying?
Yes. Free shows the whole product with the engine in demo. When you're sold, upgrade to Pro — monthly billing, cancel any time.
About the engine
How does it build my weeks?
It reads your real CTL (chronic training load over the last 42 days) and proposes a target TSS that respects a safe ramp (no more than +10% week over week). It distributes days by philosophy (polarized, pyramidal, Coggan, etc.) and respects your roster.
What if I have my own plan idea?
You can pin manual HR/pace/power zones, pick any philosophy, mark which gear you have (even with expiry dates — holidays, work roster) and the engine respects all of that when prescribing.
How does it predict my times?
It computes your current VDOT (median of the top-3 VDOT in the last 28 days) and projects to 5K, 10K, half-marathon and marathon, with altitude correction if you live high.
Payments and subscription
How do I pay?
Worldwide: Lemon Squeezy in USD or EUR (cards and PayPal, handles EU VAT for you). Argentina only: Mercado Pago in pesos.
Can I cancel any time?
Yes, from your processor's portal. Access stays active until the end of the paid cycle. No refunds for months already billed.
If I pay Coach, do my athletes pay?
Yes, each one pays their own Pro (USD 9.99). The Coach plan gives YOU the multi-athlete toolkit (panel, notes, read-only view) — it doesn't buy seats. Standard pro-platform model: each account pays its own, no seat-selling.
Data and privacy
What data do you store?
Email, name, training profile, activities pulled from Strava. We don't store cards (processors do). Full detail: /privacy.
Can I download all my data?
Yes. Onboarding → My account → Export ZIP. You get account.json + activities.parquet + profile.json + subscriptions, standard formats.
Can I delete my account?
Yes, any time, no permission needed. Onboarding → My account → Delete account. Wipes everything server-side instantly.