FITTR ONE app

Meet the One AI tool.

One AI is a tool built into your FITTR ONE app. It logs your food and activity and answers questions about your goal. Your coach plans. One AI helps you follow the plan.

See the quick guides Get the app
Ask Search Favorite Logging Estimate

Start here

A tool, not an AI agent.

AI agents like ChatGPT or Claude can plan, remember and work through tasks for you. One AI is different. It works inside FITTR ONE so you can log quickly and get answers about your goal, while your coach builds the plan.

AI agent

ChatGPT, Claude and others

What it's for
Open-ended conversations and tasks
Knows your goal
Only if you tell it
Saves to your daily log
No
Your coach can see it
No
Remembers past days
Depends on the tool
Builds your program
It may try

One AI tool

Inside your FITTR ONE app

What it's for
Logging and quick answers inside FITTR ONE
Knows your goal
Yes, from your plan
Saves to your daily log
Yes
Your coach can see it
Food, yes. Workouts only from My Plan
Remembers past days
No. Use Favorites
Builds your program
No. That's your coach

One rule for training

Always complete your coach's workout in My Plan, from Start Workout to Complete Session. Workouts logged in the One AI chat don't show up for your coach.

1

Ask

Ask One AI questions in the chat. It knows your goal, so its answers are about you.

What can I ask?+
Food choices"Chicken or beef? I need more protein but not more fat."
Meals for your goal"What would be a good lunch to support my goals?"
Eating out"I have 500 calories left and I'm going out to dinner. What should I do?"
Fueling for training"What should I eat before a 60 minute leg workout?"
A quick training swap"My back is sore. What can I do instead of deadlifts today?"
Progressing an exercise"10 lb curls feel too easy. What should I do?"
Your lab report"Is there anything I should avoid eating because of my last report?"
Your scale data"What does my latest weigh-in say?"
Best tips+
  • Start with a question, not "Log," so it answers instead of logging.
  • Mention anything important every time, like being gluten-free. It may not carry it over.
  • Lab answers are a summary to discuss with your coach and doctor, not a diagnosis.
What it won't do+
  • See your food log or your coach's workout. Check your daily log and My Plan instead.
  • Advise on a diagnosis, medication or pain. Message your coach.
  • Send messages to your coach, or replace your coach's plan. If its advice differs from your plan, ask your coach.
3

Favorite

Favorites are foods and exercises you've already checked. Save them once, then add them in a couple of taps. It's the most reliable way to log the things you have often.

How do I save and use favorites?+
  1. Log the item and check the card: right name, right amount, sensible calories.
  2. Tap the heart on the card. It turns red.
  3. Next time, tap + in the One AI chat, choose Food or Exercise, then Favorites.
  4. Tap + on each item and add to log. Adjust the amount with the pencil if needed.
  5. To remove a favorite, tap its red heart.
Best tips+
  • Only heart an item after you've checked it. A favorite is only as good as the card you saved.
  • Build your regular breakfast from favorites and add all the items together.
  • Still glance at the card after it logs. The values can shift slightly.
What it won't do+
  • Remember meals by name. "Log my usual breakfast" won't work the next day. Use Favorites instead.
  • Let One AI see your favorites. Add them yourself with the + button.
4

Logging

Start your message with "Log" and give a real amount. Grams or cups work best.

What should I send?+
A meal"Log 150 g cooked chicken breast, 1 cup cooked rice, 1 tbsp olive oil"
An earlier day"Log 2 eggs and 1 slice of toast for yesterday" (or "for October 14")
Strength"Log 3 sets of squats, 10 reps, 95 pounds"
Cardio or a class"Log a 45 minute spin class"
How do I fix or delete an entry?+
Change the amountTap the pencil on the card, change the number, tap the check mark.
Delete from the chatTap the trash icon on the card and confirm. It's removed from your daily log too.
Delete from your daily logIn One AI, tap the food and dumbbell icon at the top right. Tap Edit, select the item, then "Remove selected item(s)."
Fix a wrong unit or itemDelete it and log again with grams or cups, or pick it in Search.
Best tips+
  • Check every card: name, grams and calories.
  • Avoid "piece," "bowl" and "large." One AI guesses, and the guess can be far off.
  • Check your day's totals in your daily log, not by asking the chat.
What it won't do+
  • Use calories or macros you type. It looks up its own values.
  • Change the unit, calories, macros or exercise on a card.
  • Show your coach workouts logged in the chat. Complete your coach's workout in My Plan.
5

Estimate

Use Estimate when you want a rough idea of a meal, like a restaurant plate, before you decide what to log. Send a photo with a description and ask for an estimate.

Copy this prompt

Don't log this yet. Estimate the calories and protein for this plate. It has [foods], with about [amounts], cooked [method], with [sauces or dressing]. I ate [all / half].

What should be in the photo?+
  • The whole plate or bowl, taken from above in good light.
  • Every part of the meal, including sauces, dressing and sides.
  • Something for size, like a fork or your hand next to the plate.
  • A second angled photo if the food is piled high.
What should be in the description?+
  • Every ingredient, with an amount if you know it ("about 6 shrimp," "2 tbsp ranch").
  • How it was cooked: fried, grilled, sauteed in butter.
  • How much you ate.
  • The restaurant and menu item, if you know them. Many restaurants post nutrition online.
Best tips+
  • Read the estimate before you log. If it seems off, log the parts yourself with Search.
  • Ingredients without amounts can make it worse. One salad went from 434 to 2,129 kcal when ingredients were added with no amounts.
  • If a card appears, it was logged. Delete it with the trash icon if you only wanted an estimate.
What it won't do+
  • Weigh food from a photo, or see oil and butter.
  • Reliably read nutrition labels. It uses its own values.
  • Give an exact number. Treat it as a starting point.