Fitly

Workouts · Food · Habits

Your goal, turned into a plan you can follow every day.

Fitly builds your calorie targets, weekly training plan, per-muscle set targets and habit suggestions from one profile — and recalculates them live as you log.

iPhone and Android. One free month, then Fitly Pro.

Four tabs, one goal

Dash

Goal progress, today's checkpoints and a coaching note on where this week's biggest gap is.

Food

Calories and macros against your plan, meals logged by text, search or photo.

Exercise

Strength and Sports: this week's queue, body-part status, the muscle heatmap and your history.

Habits

A monthly target map plus built-in, featured and custom habits — some fill in from your health data.

Everything in the app

Goal progress tracker

Pick a target weight or the time you have; Fitly projects a realistic target, a likely range and a date, then tracks you against milestones and flags when you're off pace.

Calorie & macro plan

A daily calorie range and protein, carb and fat grams computed from your profile, pace, training style and recovery preference — recalculated whenever you change anything.

Food logging with USDA data

Search the USDA food database, reuse recent foods or add your own. Type what you ate in plain language and Fitly logs it for you.

Photo estimation

Photograph a plate, a package or a nutrition label — up to ten photos — add a hint, and review the AI estimate before saving.

Muscle heatmap

Effective sets per muscle versus your weekly target, with coverage and recovery status for every group and a drill-down that explains why a muscle is behind.

Strength logging

Log reps, weight, set type and reps in reserve against Fitly's prescription, with per-exercise history, a rest timer and clear weight-entry conventions for every kind of equipment.

Cardio & sports

Start a timer or add minutes for cycling, running, walking, elliptical or any custom sport. Weekly activity feeds your calorie needs and timeline.

Weekly weigh-in

One weigh-in a week on the day and time you choose keeps the trend honest; the dashboard and goal tracker are driven by the trend, not single readings.

Habits

Build, quit or limit habits with reminders and streaks. Pick from a featured catalog or describe a habit in one line and let AI draft it.

Health app sync

Reads steps, distance, active energy, exercise minutes, sleep and workouts from Apple Health or Health Connect, and writes your logged workouts back.

Custom exercises from a photo

Snap a gym machine and Fitly identifies the exercise, fills in movement, muscles and rep scheme for you to review and save.

AskAI

A coaching chat that sees your plan and logs, plus a setup page that connects your own Claude or ChatGPT to Fitly.

Use Fitly from Claude or ChatGPT

Fitly ships a remote MCP connector. Add it to Claude or ChatGPT, sign in with your Fitly account, and your own AI assistant reads your plan and logs meals, sets, sport and habit check-ins — straight into the app. Fitly never sees your AI conversation.

7 read tools

  • search — find a record by query
  • fetch — one record in full
  • get_daily_summary — plan vs intake, cardio, heatmap, habits
  • get_plan — calories, macros, BMR/TDEE, rate
  • get_muscle_heatmap — sets vs target and recovery per muscle
  • list_recent_workouts — recent strength sessions
  • list_habits — active habits

4 append-only write tools

  • log_food — log a meal from a description
  • log_sport — log cardio or sport minutes
  • log_strength_sets — log sets
  • checkin_habit — mark a habit done

Writes only add records; nothing in the connector edits or deletes your data.

  1. Claude: Customize → Connectors → Add, paste the Fitly connector URL. No client ID or secret.
  2. ChatGPT: Plugins → Add → Custom MCP server, paste the URL, choose OAuth.
  3. Sign in with your Fitly account when prompted. The URL is on the AskAI page in the app.

Pricing

Your first month is free. After that, Fitly Pro is an auto-renewing subscription managed through the App Store or Google Play. Cancel any time from your store account.