A new kind of fitness coach

A coach that actually knows you.

Arnie learns your habits, nutrition, training, and goals over time — remembers you, spots patterns, and keeps you moving, right in the messenger you already use.

Arnie sends one text to start. Apple devices only · reply STOP anytime.

Limited beta Telegram + iMessage iOS app coming
★★★★★ 4.9 from beta members
Works with your gear
Whoop
Apple Health
Oura
Fitbit
Hume
more soon
How it feels

Real coaching,
in your inbox.

No app to learn. No dashboard to maintain. Just text Arnie like you'd text a real coach — it handles the rest.

A
Arnie
online
The difference

Most apps track.
Arnie coaches.

There's a gap between logging your meals and actually improving. Arnie closes it.

Other apps
✗Log it yourself in a clunky interface
✗Forget your history every session
✗Show you charts, not guidance
✗Require a habit change just to use
✗Silent unless you open the app
Arnie
✓Just text it — Arnie figures out the rest
✓Remembers everything across every session
✓Tells you exactly what to do next
✓Works in the app you're already using
✓Proactively checks in when it matters
What's included

A trainer that remembers,
adapts, and follows up.

Log naturally

Say "had a burger and fries for lunch" — Arnie handles the macros. No dropdowns, no searching, no friction.

Built-in memory

Your injuries, preferences, goals, and full history are always in context. It never asks you to repeat yourself.

Real accountability

Morning check-ins, midday pacing, evening recaps. It knows when to nudge you and when to back off.

Workout tracking

Log sets, reps, and weight in plain text. Arnie spots your progress trends and tells you what's next.

Whoop integration

Recovery score, HRV, sleep hours — pulled automatically and factored into every recommendation.

Daily guidance

See your nutrition pacing, workout status, and exactly what you need to close the day strong.

Your data

Your numbers,
always in view.

Every meal, workout, and weight you log lives in your personal dashboard — open it from any browser, no app download needed.

tryarnie.com/dashboard/••••••
Today · May 27
New York  ·  2,150 cal target  ·  178g protein
Calories
1,640
of 2,150
Protein
134g
of 178g
Water
0.8L
of 2.5L
Today's log
3 eggs, 2 toast, coffee
7:45 am  ·  480 cal  ·  32g
Chicken caesar salad
12:34 pm  ·  520 cal  ·  41g
Greek yogurt + blueberries
3:20 pm  ·  220 cal  ·  18g
Bench 185 4×5  ·  OHP 115 3×8
6:02 pm  ·  workout
Pricing

Start free.
Stay if it works.

Try it free for a week. No credit card. No commitment.

Free trial
7 days
No card required
  • Full access to all features
  • Food & workout logging
  • Daily coaching & check-ins
  • Dashboard access
Request Access →
Premium
$9.99/mo
After trial · Cancel anytime
  • Everything in free trial
  • Persistent memory & history
  • Whoop & wearable sync
  • Proactive daily check-ins
Get Access →
FAQ

A few quick answers.

Arnie is a personal performance partner for fitness and nutrition. You log food, workouts, and weight in plain English and it learns your patterns, projects your trajectory, tracks your momentum, and coaches you off your actual history — getting more valuable the longer you use it. Available on Telegram and iMessage, with a native iOS app in development.
MyFitnessPal tracks — it doesn't coach. ChatGPT has no memory of your history. Arnie remembers everything: your goals, injuries, past performance — and actively guides you based on all of it.
Both Telegram and iMessage work today — whichever messenger you already use. They give the fastest, most natural experience with zero friction and no app install. A native iOS app is in active development.
After the trial, Arnie continues at $9.99/month. Cancel any time before the trial ends and you won't be charged. No hidden fees, no annual lock-in.
Yes — it's on the roadmap. Join the beta waitlist and you'll be among the first to know when it launches, with priority access included.
Ready

Ready when
you are.

Limited beta spots. Be first in.