AI Personal Trainer · Nutrition Coach · 24/7

Your personal trainer lives in your texts now.

Snap a photo of your meal. Say your workout out loud. Chiron logs it, coaches you, and checks in like a $150/month human trainer — for less than $0.50 a day. No app. No menus. Just message.

Start 7-day free trial See it in action
Photo → macros in seconds Voice-note logging Adaptive programs Cancel anytime
📸 Meal logging — just send a photo
Chiron
● online — always
Message Chiron…  🎙️ 📷
24/7Never sleeps, never cancels on you
<10 secPhoto → full macro breakdown
300+Real meals in accuracy testing
$0.33/dayvs $5–9/day for a human coach
A day with Chiron

Coaching that fits inside the life
you already have

No new habits to build. You already text, talk, and take pictures of food — Chiron turns all three into coaching.

Breakfast on a table
7:04 AM

Wake up to a coach, not an app

Chiron messages first — today's session, and two taps to log how you slept and how sore you are. It adjusts your training before you've had coffee.

"Rough night? Noted. We'll keep today smart — no PRs, solid work."
Man checking phone during workout
5:47 PM

Say it. Snap it. It's logged.

"Bench 185 for 8, 8, 7. Then incline dumbbells." Text it or say it in a voice note — every set is parsed, saved, and compared to last time.

"+5 lbs on bench vs Tuesday — that's PR pace. One more solid week and we push."
Friends at dinner with phones
7:30 PM

Eat out without falling off

Photo of the plate → calories, protein, carbs, fat against your targets. Wrong guess? Just tell it — Chiron corrects and remembers.

"Solid protein hit. You've got ~40g left today — Greek yogurt before bed closes it out."
Everything a coach does

One conversation. Six jobs done.

📸 Photo → macros, instantly

Point. Shoot. Send. Chiron identifies the dish, estimates calories and macros, and logs it against your daily targets — tested on hundreds of real meals, from meal-prep chicken to messy diner breakfasts.

  • Reads nutrition labels for exact numbers
  • "Does this look right?" correction loop — you're always in control
  • Voice and text logging too: "had a chicken burrito bowl"
Healthy bowl being photographed
LOGGED ✓
Chicken & rice bowl
618 cal · 42p / 68c / 18f

🎙️ Talk to your trainer — literally

Hold the mic button and say it: "Just did three sets of squats at 225, felt strong." Chiron transcribes, logs every set, and coaches your next move. Hands full at the gym? Sweaty screen? Doesn't matter.

  • Voice-note meal logging while you cook or drive
  • Full workout capture from natural speech
  • Replies in seconds, like a coach on the other end
Athlete resting with phone
🎙️ VOICE NOTE · 0:09
"squats 225, three by five…"
→ 3 sets logged ✓

📅 Programs that adapt to your real life

A multi-week plan built around your goals, schedule, equipment, and injuries — then rebuilt on the fly. Stuck in the office with two kettlebells? Traveling? Slept terribly? Chiron adjusts the day instead of guilt-tripping you.

  • Progressive overload managed week to week
  • Recovery-aware: sleep and soreness change today's plan
  • "Can we move leg day to Friday?" — just ask
Woman training with kettlebell
TODAY · ADJUSTED FOR RECOVERY
Upper Push A — lighter volume
Rough sleep logged → no PRs today

🔥 A coach that notices

Miss a planned workout and your tracker does… nothing. Chiron notices — one respectful nudge, never spam. Hit a 14-day streak and it celebrates with you. This is the accountability that makes the difference between week 3 and month 6.

  • Smart check-ins with strict politeness limits (max 1/day, never at night)
  • Logging streaks & weekly training streaks — never paywalled
  • Remembers your knee, your PRs, your kid's soccer schedule
Family eating healthy meal
STREAK
🔥 14 days
logged & counting — best yet

📊 Proof you're changing

Weekly and monthly PDF reports a real coach would charge for: PR timeline with estimated 1-rep maxes, training volume trends, nutrition consistency, recovery averages. Watch the line go up.

  • Personal records flagged the moment you set them
  • Body-composition tracking from a photo of your scale
  • Apple Health sync: sleep, steps, heart rate feed your coaching
Progress tracking
MONTHLY REPORT
Bench e1RM ↑ 12 lbs · Consistency 89%
The honest comparison

Trackers count. Coaches change you.
Chiron is the only one that does both — at this price.

Chiron
from $9.99/mo		 MyFitnessPal
Premium $19.99/mo		 Cal AI
~$30/yr		 Fitbod
$95.99/yr		 Future
$199/mo
Photo → calories & macros✓✓✓——
Voice-note logging✓————
Personalized training programs✓——generic AI✓
Nutrition + training in one place✓———✓
Proactive accountability check-ins✓———business hrs
Answers questions 24/7✓————
Remembers your injuries & history✓——workouts only✓
Recovery-aware daily adjustments✓——basic✓
No app required✓————
Monthly cost$9.99–14.99$19.99~$2.50$8.00$199

Competitor pricing and features as published/reported, July 2026. MyFitnessPal Premium $19.99/mo or $79.99/yr (barcode scanning no longer free). Cal AI ~$30/yr, photo logging only. Future $199/mo human coaching. Features simplified for comparison; see each product for details.

vs. the trackers (MyFitnessPal, Cal AI, Cronometer)

They're databases with search bars. Reviewers' verdict on the whole category: "this isn't an accountability app." They record your day — nobody's on the other end. Chiron answers, adapts, and holds you to it. Half the price of MyFitnessPal Premium, with an actual coach attached.

vs. human coaching (Future, Caliber — $99 to $266/mo)

Human coaches are great — between 9 and 5, for $2,400+ a year, until they're asleep when you're deciding between the burrito and the bowl. Chiron delivers the daily coaching experience — programming, form answers, food decisions, accountability — at a fraction of the price, at 11 PM, in seconds.

Simple pricing

Less than a protein bar a day

7-day free trial on every plan. Cancel before it ends and you pay nothing — cancel anytime after with one message.

Monthly Annual save 20%

Standard

$9.99/month
  • Full AI coaching conversations (100 messages/day)
  • Photo meal analysis (5/day)
  • Personalized adaptive training program
  • Voice-note logging
  • Streaks, check-ins & progress reports
  • Apple Health sync
Start 7-day free trial

Card required to start; you won't be charged until your 7-day trial ends. Then $9.99/month. Cancel anytime — even mid-trial — with /cancelchiron or support@chirontrainer.com.

MOST POPULAR

Elite

$14.99/month
  • Unlimited coaching conversations
  • Unlimited photo meal analysis
  • Personalized adaptive training program
  • Voice-note logging
  • Streaks, check-ins & progress reports
  • Apple Health sync
  • Priority support
Start 7-day free trial

Card required to start; you won't be charged until your 7-day trial ends. Then $14.99/month. Cancel anytime — even mid-trial — with /cancelchiron or support@chirontrainer.com.

Questions

Everything else you're wondering

Pick a plan above. After checkout you'll get an activation code by email — open Telegram, message Chiron, send the code, and answer a few setup questions in chat. You'll have your program and targets within minutes. WhatsApp support is coming soon.

Photo estimation is tested against hundreds of real meals and keeps improving — and every log comes with a "does this look right?" check so you can correct anything in one message. For packaged food, send the label and Chiron uses exact numbers. Workouts are parsed from your own words and confirmed back to you.

Your logs are stored securely, encrypted at rest, backed up nightly, and never sold. Health-data sync is strictly opt-in and you can disconnect it (or delete your account) any time. See our privacy policy.

Send /cancelchiron in chat — two taps, done, no retention games. You keep access through the end of what you've paid for. Cancel during the free trial and you're never charged.

No. Chiron is a fitness coaching tool, not a doctor, and will tell you so whenever health conditions come up. Consult a physician before starting any training or nutrition program.

Because you already have a messaging app open 40 times a day, and a coach should live where your thumbs already are. Telegram is free, fast, secure, and takes 60 seconds to install if you don't have it. WhatsApp is next.

The best coach is the one
that's there at 7 AM and 11 PM.

Start free. If it doesn't change how you eat and train in 7 days, walk away without paying a cent.

Start your 7-day free trial

From $9.99/month after trial · Cancel anytime in chat