Your AI Nutrition & Gym Coach in Your Pocket
Track macros, log workouts, and get AI-powered insights — all in one clean app built for people who take their fitness seriously.
Good morning,
Alex
Today's Macros
84%Today's Workout
Push Day A · 4 exercises
You're 18g short on protein. Add a Greek yogurt to hit your target.
Everything you need to hit your goals
Theron combines AI-powered nutrition analysis with comprehensive workout tracking in one clean, fast app.
AI Food Scan
Point your camera at any meal and get an instant macro estimate. Included on every paid plan — 3 scans/day on Fuel, 10/day on Burn, 20/day on Peak.
Barcode Scanner
Scan a packaged product barcode to pull its label nutrition from our database or Open Food Facts. 5 scans/day on the free plan, up to 20/day on Peak.
Macro Tracking
Track calories, protein, carbs, and fat with precision. Set custom targets and watch your progress in real time.
Workout Logging
Log exercises, sets, reps, and burn. Keep a complete history of every session and measure strength gains over time.
AI Insights
Get personalized nutrition and training insights based on your actual data. Powered by OpenAI for accurate, context-aware advice.
Smart Goals
Set weight, body composition, and performance goals. Theron calculates your adaptive macro targets automatically.
Progress Analytics
Visualize your fitness journey with detailed weekly and monthly charts for nutrition compliance and workout frequency.
AI Meal Plans
Generate a full meal plan from your goals and preferences in seconds, then adjust it meal by meal.
AI Training Plans
Get a structured workout plan generated around your goal, experience level, and available equipment.
Fasting Timer
Track intermittent fasting windows with a live fasting ring so you always know exactly where you are in your fast.
Adaptive Training
Rate soreness per exercise and overall exhaustion after a session. The next sessions deload or add load automatically instead of repeating week 1 forever.
Logging Streaks
Separate nutrition and workout streaks, with reminders, so consistency is visible on your home screen rather than something you have to remember.
Three steps to a better you
Getting started takes under 5 minutes. Your first AI insight arrives the same day.
Set your goals
Tell Theron your stats, fitness goal, and activity level. It calculates your optimal calorie and macro targets automatically.
Track everything
Scan food with your camera for instant macros, or search our database. Log workouts with sets, reps, and burn estimates.
Get smarter over time
AI insights analyze your patterns and give you actionable tips. Adjust targets as you progress — Theron adapts to you.
Built for gym owners & nutritionists too
Theron gives you a professional dashboard to manage all your clients, build custom plans, and monitor compliance — without juggling spreadsheets or WhatsApp groups.
See the full coach app →Client Management
Invite clients via email. View their compliance, food logs, and workout history from a single dashboard.
Plan Builder
Create custom meal and workout plans. Assign them to individual clients with one tap.
Compliance Tracking
7-day compliance charts show you exactly how consistently each client follows their plan.
Session Calendar (web)
Book training, nutrition review, and consultation sessions on a week calendar — recurring slots, status tracking, and coach-side session logging.
Revenue & Exports (web)
Define your own pricing plans, assign them to clients, and see revenue, renewal, and churn. Export clients, plans, and revenue to Excel anytime.
Goal Notifications
Get notified when clients update their goals so you can adjust their plans in real time.
Centralized Records
Replace scattered spreadsheets, paper logs, and gym ERP software with one place for member profiles, plans, and history.
Built to Scale
Whether you run a boutique studio, a nutrition practice, or a multi-trainer gym, Theron grows with your client list.
Client management, plan building and compliance run on both the mobile app and the web dashboard. The session calendar, plan templates, pricing plans with revenue and retention, seat billing and Excel exports are web-dashboard features. Your clients only ever need the mobile app.
Professional Dashboard
Athens Fitness Club
Dimitris K.
On track
92%
compliance
Maria P.
Needs attention
71%
compliance
Nikos A.
On track
88%
compliance
Elena S.
Behind plan
55%
compliance
Start free. Upgrade when you need more.
Creating an account starts a 7-day free trial with no card required. Paid plans are bought in the app (App Store / Google Play) or on the web, and can be cancelled anytime.
Gym
For gyms, studios and practices managing clients — priced per member seat
- Invite & manage clients
- Assign meal & workout plans
- Monitor client progress & compliance
- Web dashboard: calendar, revenue, Excel exports
- In-app seat bundles from €29.99/mo for 10 seats
- Or any seat count 10–500 on the web, same per-seat price, pro-rated
Personal plans are in-app purchases via Apple App Store or Google Play; gym plans can also be bought on the web via Stripe. Prices exclude applicable taxes.
Solutions for your business
Gym Management Software
Invite members, assign plans, and track compliance from one dashboard.
Gym ERP Software
The single-record alternative to a full gym ERP — members, plans, revenue, reporting.
Online Coach App
The online coach app for managing every client, plan, and check-in.
Nutrition Coaching Software
Practice management for dietitians — plans, macros, and client tracking.
Personal Trainer Software
Client management and session scheduling built for PTs.
Session Scheduling
A week calendar for booking and tracking training sessions.
Features
Every Theron feature — AI food scan, plan builder, and more.
Compare Alternatives
How Theron compares to Trainerize, TrueCoach, and Everfit.
Frequently asked questions
Everything you need to know about Theron before you get started.
Ready to transform your
fitness journey?
AI-powered nutrition and gym tracking, out now on iOS and Android — built for people who are serious about results.
Available now on iOS & Android
Get in touch
Questions about Theron, partnership inquiries, or just want to say hi — we respond within 24–48 hours.