Use JustGains with Zapier

Connect your JustGains account

1. In Zapier, create a Zap and search for JustGains as the trigger or action app.
2. Choose Sign in to JustGains. A JustGains sign-in page opens in your browser.
3. Sign in with the account you use on your phone. Zapier returns to the Zap editor with the account connected under your username.
4. Pick a trigger or action from the lists below and select Test to see a real record from your account.

There is no API key to copy. Zapier never sees your password, and the connection appears as "Zapier" in your JustGains connected devices.

Triggers: when something happens in JustGains

Every trigger gives you both units, so you can map pounds or kilograms, miles or kilometers, without converting anything yourself. Zapier checks JustGains for new records every few minutes, depending on your Zapier plan.

How Meal Logged decides a meal is done

Most people add a meal one food at a time, so Meal Logged waits until nothing has been added to that meal for 10 minutes, then fires once with the full list and totals. You can change the wait in the trigger options. A food added to the same meal after it fired shows up in Food Logged but does not send the meal again. If you want every item the moment you log it, use Food Logged instead.

How Goal Completed counts

A count goal such as "8 glasses of water a day" or "3 workouts a week" fires when that day or week reaches its target, and only once for that period, even if you keep logging. Check-in goals (a tick, a star rating, a mood, a timer) fire once for each day you complete them. Counter goals have no target, so they never fire.

Actions: do something in JustGains

• Log Food adds one or more foods to breakfast, lunch, dinner or a snack. Give each food a name and, ideally, its weight in grams. Calories and macros are optional; JustGains uses a reliable match from its food database when it finds one and your numbers when it does not.
• Log Weight saves a body weight in pounds or kilograms.
• Log Activity records a run, walk, ride or other session with its start time, duration and optional distance, calories, heart rate and steps.
• Add Water adds an amount in milliliters, fluid ounces, cups or liters to the day's total. A negative amount takes water off.

Log Food and Log Activity have an optional Dedupe Key. Map a unique ID from your trigger, such as a form response ID, and a Zap that runs twice for the same record logs it once. A repeated Log Activity updates the activity it already made.

Searches

Find Food looks up a food and returns its calories and macros per 100 g and per serving. Get Daily Nutrition Summary returns a day's calories, protein, carbs, fat and fiber, the calories for each meal, and your targets with calories remaining. Both are handy as a middle step, for example to post your totals to Slack each evening with Zapier's Schedule trigger.

Zaps to try

• Workout Completed → Google Sheets: add a row with the date, title, duration, sets and volume in pounds.
• Activity Completed (runs only) → Notion: add each run with distance in miles and pace per mile.
• Meal Logged → Slack: send yourself the foods and calories for every meal.
• Goal Completed → Discord or Slack: tell your training group when you hit your weekly workout goal.
• Google Forms or Typeform → Log Food: log meals from a simple form, with the response ID as the Dedupe Key.
• Schedule (every day at 9 PM) → Get Daily Nutrition Summary → Email: a nightly recap of what you ate against your targets.

Dates and timezones

Zapier runs on UTC, but "today" in JustGains actions means today in your JustGains timezone. Add Water, Log Food and Get Daily Nutrition Summary all default to your own day, so a 10 PM dinner does not end up on tomorrow's diary.

Manage or disconnect

Changes made by a Zap reach your phone through its normal sync. To stop access, remove the JustGains connection in your Zapier account settings, or revoke the Zapier device in JustGains. Revoking, changing your password, or leaving the connection unused for 90 days signs Zapier out; reconnect from Zapier when it asks.