Sisu — Earn the Ascent
TRAIN · FUEL · ASCEND

A training and nutrition app for people who take the work seriously — powerful enough to run your whole regimen, elegant enough that you actually want to.

Request beta access See what it does
Now on TestFlight for iPhone · Private beta
WHAT IT DOES

Three disciplines. One app.

Lift, run, fuel, and track your progress in one place — with AI doing the busywork so you can focus on the effort.

TRAIN
  • Full workout system with a Workout Vault of templates
  • Progressive-overload suggestions, live 1-rep-max estimates, PR tracking
  • HIIT timer with voice and haptic cues
  • Engine Room cardio hub — runs, rides, rucks & more, with weekly stats and gear/shoe mileage
FUEL
  • Fast macro and calorie logging with deep USDA + packaged-food search
  • Barcode scanning — several items into one meal in a single flow
  • Build, save, and edit recipes with automatic macros
  • AI meal planning around your goals, diet style, and allergies
  • Snap a photo of your plate and let AI estimate the macros
TRACK
  • Weight and body-fat trends with a smoothed trend line
  • Adaptive expenditure — your real, calculated TDEE
  • Progress photos and structured check-ins
  • A home screen you can reorder and customize to your routine
ZERO
Ads & trackers
5
Hand-crafted themes
AI
Meals, recipes & macros
1
App for the whole regimen
THE COMPANY BEHIND IT

About Sisu Ascent

Sisu Ascent is a training and nutrition app built for people who take the work seriously. Lift, run, fuel, and track your progress in one place — a full workout system, an Engine Room cardio hub, fast macro logging, and AI that handles the busywork so you can focus on the effort. It’s powerful enough to run your whole regimen, and elegant enough that you actually want to.

“Sisu” is a Finnish word for grit — quiet, relentless determination in the face of the long climb. That idea is the standard we build to, and the name of the company behind the app: Sisu Ascent LLC, based in Texas. We are building deliberately, one considered release at a time, for the kind of people who show up whether or not anyone is watching.

QUESTIONS

Frequently asked

The short version. Anything else, reach out and we’ll answer personally.

What is Sisu?
Sisu is a training and nutrition app that brings lifting, running, fueling, and progress tracking into one place. It pairs a full workout system and cardio hub with fast macro logging and AI meal planning — built for serious, self-directed people, not casual dabblers.
What platforms does it run on?
Sisu is built for iPhone. There is no Android or web version today.
How do I get access?
Sisu is currently in a private TestFlight beta, so access is invite-only while we refine the experience. Reach out and we’ll let you know when a spot opens up.
What does it cost?
The app is free during the beta. Pricing for a future premium tier hasn’t been finalized yet, and we’ll communicate it clearly before anything changes.
Do you run ads or sell my data?
No. Sisu shows no ads and does not sell or share your data for advertising — your training stays yours. See our Privacy Policy.
Can I delete my account and data?
Yes. You can delete everything in-app (Profile → Reset All App Data) or email support@sisuascent.com and we’ll remove it.
GET IN EARLY

Join the beta

Sisu Ascent is in private TestFlight beta on iPhone. Want in? Reach out and we’ll send you an invite.

Request beta access

EARN THE ASCENT

Sisu Ascent LLC · Texas