Apps your members open every day
We design and build your app for iPhone, Android, the TV and the watch, in your brand, with one login across all of it. We get it into the app stores, keep it running, and have subscriptions taking payments at launch.

Every screen on this page is from an app we built and run.
On the TV
Classes and coaching on the TV
Apple TV, Roku, Fire TV, Samsung and Android TV. Members sign in by scanning a code with their phone, then train along with timers and coaching on screen.



What's included
Features already built and running
These features already run in apps we've shipped. We design each one around your brand.
Onboarding
A plan for each member at sign-up
New members answer a few quick questions about their goal, how many days a week they can train and their level, and the app builds their program from the answers.
- A personal plan before the first workout
- Members can skip the questions and start straight away



Programs & video
Multi-week programs with video coaching
Multi-week programs with a session for every day, round-by-round video coaching, and exercise lists members can follow at the gym or at home.
- Multi-week programs with daily sessions
- Video coaching with rounds and timers
- Your full workout library, searchable



Live & on demand
Live classes and a video library
Stream live classes, then keep the recordings in an on-demand library. Members pick up where they left off on any device.
- Live classes inside the app
- On-demand library with continue-watching
- Download for offline workouts



Nutrition & health
Tracking for meals, fasting, weight and medication
Members log what they eat, their fasting windows, supplements, weight and medication in the same app they train with.
- Calories and macros, with a barcode scanner
- Fasting windows
- Supplement reminders
- Weight trends and medication schedules


Community
A feed for members and coaches
Members post photos and video to a shared feed, and your coaches post there too.
- Coach notes pinned to the top of the feed
- Likes, comments and daily mindset posts



Streaks & rewards
Streaks, badges and monthly challenges
Members earn points in monthly challenges and awards for finishing programs, and the app keeps their streaks and personal records.
- Monthly challenges with points
- Badges for programs, streaks and milestones
- Lifting records and progress history



Behind the app
What the app tells Cortex
The app records what members do: workouts finished, classes booked, days skipped, pages opened. Cortex uses that history to decide which members get a message, what it says and when, including when to send nothing.
Riley, day 2 of a trial
What the app recorded
- Finished the intro workout
- Looked at annual pricing
- Set a goal of 4 workouts a week
What Cortex did
Sent an in-app plan for week one the next time Riley opened the app, and held off on any sales offer.
Sam, 9 days without a visit
What the app recorded
- Ignored the last 3 pushes
- Left the last workout early
- Has come back after breaks before
What Cortex did
Sent nothing. Sam usually comes back without a nudge, so Cortex waits. If Sam is still away on day 14, a win-back goes out.
Apps we've built
A few of the apps we run today, for trainers, studios and health brands. Each one is designed around the brand behind it.

Boxing and self-defense
iPhone · Android · Apple TV

Celebrity-trainer training app
iPhone · Android

Women's fitness subscription
iPhone · Android · TV

Legacy trainer video library
iPhone · Android
Weight-loss and medication tracker
iPhone · Android
How we build an app
01
Design it around your brand
We start with your brand and your members: how they train, when they open the app, what keeps them coming back. Then we design every screen around that.
02
Build every version together
Phone, tablet, watch, web and the TV apps are built by one team and released together. One login works across all of them.
03
Launch it in the stores
We handle every app store submission, phone and TV. Subscriptions and in-app purchases are set up and taking payments at launch.
04
Run it and grow it
After launch we host it, update it and fix it. Cortex uses what members do in the app to decide who gets a message and when, and Pulse shows you who is about to leave.
Talk to us about your app
We move your members and content over for you.