two slices of pepperoni pizza
Fuel
Lunch · +570 kcal, 24g protein
Estimated, itemized, and filed in your food diary.
JustGains Chat · Powered by Claude
Just say it.It’s logged.
There’s a coach in your DMs now. Tell Claude what you ate, what you did, or what you want to train: it logs the food, ticks the goals, and builds the workout. No forms. No menus. No math.
Answers from your real dataAcross all workspacesFriends welcome too
Claude
@claude
just had 2 scrambled eggs, sourdough toast and a black coffee
Message
Log food by saying itTick goals from a textAsk about your trainingBuild a workout in chatAnswers from your real dataNo forms. No menus.
Why chat
Tracking dies by a thousand taps.
Everyone knows what to do: log the food, keep the habits, show up. What kills it is the bookkeeping. So we made the bookkeeping a conversation.
01
The six-tap meal
Search the database, pick a portion, choose a meal slot, confirm, save. For eggs. Nobody quits eating, they quit the form.
02
The blank evening
By 9 PM you’re reconstructing lunch from memory. Friction doesn’t just slow logging down, it deletes the data. A text at the table takes four seconds.
03
The mute dashboard
Your macros, streaks, and training history live in tabs you have to go read. “How am I doing?” should be a message you send, not a report you compile.
The real thing
One thread runs the whole app.
These are real screenshots of a real conversation. The food card is a real diary entry, the goal pips are real progress, and the workout is saved and ready to train: all from three text messages.
Grounded by design. Before every reply, Claude reads your actual day: meals, targets, goals, training history. If you didn’t log it, it doesn’t count it.
Where it lands
Every message knows where it’s going.
JustGains is four apps in one: training, nutrition, goals, and activity. Chat is the front door to all of them.
did my meditation and read 20 pages
Goals
Two goals ticked · streaks alive
Progress lands in Goals → Today, pips and all.
build me a pull day around lat pulldowns
Train
New workout · saved to your library
Exercises, sets, reps, and rest: ready to start.
when did I last deadlift?
Chat
Your log, checked: date, sets, and PB
It reads your history before it answers. No vibes.
Everything it writes shows up in the app as if you logged it by hand: because you did.
FAQs
Fair questions, straight answers.
What people ask before they trust an AI with their food log.