GemFit is an iPhone app for meals, training and body measurements. Snap a photo, scan a barcode or type what you ate, check the numbers, then save. Pro adds a coach that drafts changes for you to approve.
Four screens do most of the work. Here is what each one does, shown with a sample day.
9:41
Log Food
BreakfastLunchDinnerSnack
Meal name or AI description
Chicken rice bowl
From your photo5 foods · about 450 gAI estimate
Serving
1 bowl
Macros
CAL670
PROTEIN52
CARBS72
FAT18
DatabaseAI fillPhotoBarcode
Check the portions before you save. A photo can miss oil and sauce.
Save meal
Free
Log a meal
Take a photo, scan a barcode, search USDA, or type it in. GemFit fills in calories and macros, shows where the numbers came from, and waits for you to check them.
9:41
TrainingExercise Library33 animated demos with form cues
Search exercises
AllChestBackLegsShoulders
Goblet SquatLegsKettlebell
Barbell DeadliftLegs · BackBarbell
Seated Cable RowBackCable
Machine Chest PressChestMachine
HomeProgressLogTrainProfile
Free
Track your training
Log sets, reps, weight and duration by hand, or log a workout straight from the day in your plan. The exercise library has 33 animated demonstrations with form cues.
9:41
ProgressLast 30 days
1D3D7D30DDateAll
Workouts14in 30 days
Avg intake2,105cal a day
Weight181.4−3.2 lb
Weightlb · 30 days
Sep 7Sep 21Oct 6
Deep dives
Nutrition Report148P · 221C · 68F a day
Workout Summary14 sessions · 182,400 lb volume
Body Composition181.4 lb · −3.2 lb in 30 days
HomeProgressLogTrainProfile
Free
See your progress
Pick 1, 3, 7 or 30 days, a date, or all time. Workouts, average intake and weight sit side by side, and a missed day stays blank instead of turning into a fake zero.
9:41
GemFit CoachChat, review cards, then approve
DashboardCoach Pro
Lunch was a chicken burrito bowl, about 700 cal. Log it, and move tomorrow’s leg day to Thursday.
GemFit AI
Two review cards are ready. Edit anything, then approve. Nothing is saved until you do.
Food logLunch · Today
Chicken burrito bowl
700 cal · 42P · 78C · 22F · from your description
EditApprove
Plan changeRecomp Roadmap
Move Week 2 Day 3 · Legs
Wed, Oct 7 → Thu, Oct 8
EditApprove
Log food, training, plan, or review…
HomeProgressLogTrainProfile
Pro
Ask Coach
Ask about your own log in plain words. Coach drafts the food entry, workout or plan change, and nothing is saved until you approve it.
Phone screens show a sample day with demo data. Food photos are estimates you review.
AI does the typing. You decide what gets saved.
GemFit uses AI to turn photos and sentences into log entries, then shows you its work before anything lands in your history.
Every number shows its source
Entries are labeled official source, web-verified, AI estimate or unresolved, so a day of packaged food reads differently from a day of photo guesses.
Coach works from your log (Pro)
Coach answers from your saved meals, workouts and plans, and turns requests into drafts you can edit or approve.
Bring your own AI assistant
Connect Claude or another MCP client over OAuth. It can read your log and propose entries, and every change still arrives as a draft. How connected AI works
Source labels in your log
Example entries with demo data
Protein barBarcode · 1 bar · 190 calOfficial source
Subscriptions renew automatically unless canceled. Manage an App Store subscription in Apple settings. Terms · Privacy
Questions before you download
How accurate is food logging?
It depends on the source, which is why every entry is labeled. Barcode matches come from Open Food Facts, and supported lookups use USDA or official restaurant nutrition. A photo cannot show every ingredient or how much oil went in, so check photo estimates before you save.
Is my daily log public?
No. Your food, workouts and body measurements are private tracking data. Sharing through eligible community features is a separate choice you make.
Does GemFit give medical advice?
No. GemFit helps you track fitness and nutrition. AI suggestions and calorie calculations are estimates, not medical advice or a substitute for a qualified professional.
Can I connect my own AI assistant?
Yes. GemFit supports authorized account connections through MCP. Your assistant can read your log and propose changes, and every change still needs your review before it is saved.
Restaurant burrito bowlSearch · 1 bowl · 700 calWeb-verified
Chicken rice bowlPhoto · 1 bowl · 670 calAI estimate
Grandma’s oatmealText · needs your numbersUnresolved
