Create Your Account
To create your account, open the GainSync web app URL in your browser and if you're not logged in you'll land on the Login page where you click Create account at the bottom to go to the Sign Up page. The sign-up form includes an optional profile photo circle, name fields, username with availability check, email, password with strength bar, and a non-functional Google sign-in button.
- 1Open the GainSync web app URL in your browser.
- 2If you're not logged in, you'll land on the Login page.
- 3Click Create account (the link at the bottom of the form) to go to the Sign Up page.
- 4Optionally click the photo circle at the top to upload a profile picture (JPEG, PNG, or WebP).
- 5Enter your First name and Last name.
- 6Enter a Username which the app checks for availability as you type.
- 7Enter your Email address.
- 8Enter a Password and watch the 4-segment strength bar turn green.
- 9Click the red Sign Up button.
- 10A brief checkmark animation plays and you're automatically taken to onboarding.
→Usernames must be unique so if yours is taken pick another.
→After signup you go straight into onboarding which you can't skip but several steps inside are skippable.
→The Sign up with Google button is visible but currently not functional so use the email/password form.
First-Run Onboarding (6 Steps)
After signup you automatically enter a full-screen 6-step wizard with a step indicator at the top showing Step X of 6, where you move forward with Next and back with Back. The steps include goal selection from a 2x2 grid, body metrics entry, optional baseline measurements, optional progress photos, overview review, and coach code entry to connect with your trainer.
- 1In Step 1 Goal selection, pick one of four goals shown as a 2x2 grid: Fat loss, Muscle gain, Recomp, or Performance, which gets a red glow when selected, then click Next.
- 2In Step 2 Body metrics, enter your Weight and Height, pick your Date of birth using the date picker, enter your Target weight, then click Next.
- 3In Step 3 Baseline measurements (skippable), optionally enter circumference measurements for body parts including neck, shoulders, chest, waist, hips, biceps, forearms, thighs, and calves, use the unit dropdown to switch between cm and in, click Skip to continue later or Next to continue.
- 4In Step 4 Progress photos (skippable), optionally upload photos for three pose slots: Front, Side, and Back by clicking a slot to pick an image file from your computer, click Skip to continue without photos or Next to continue.
- 5In Step 5 Overview, review the summary table of everything you entered, use Back to fix anything, then click Finish to submit your onboarding.
- 6In Step 6 Coach code, enter the 6-character invite code your trainer gave you in the centered card input, submit to send a join request to that trainer, and get app access immediately while your trainer's acceptance happens in the background.
→If you don't have a coach code yet you can still finish onboarding but won't be linked to a trainer until you enter one.
→You can enter a coach code later from the Coach Requests page.
→Skipping measurements and photos doesn't lose anything as you can add them anytime from the Progress page.
Your Dashboard (Daily Home)
The Dashboard is your daily home page showing a personalized greeting, weekly progress strip, today's workout card with Start/Resume button and status, quick actions for logging weight and adding photos, nutrition summary card with calories and macros vs goals, weight trend chart, and latest progress photo thumbnails. This provides a snapshot of today's data and quick access to key actions.
- 1Click Dashboard in the side navigation (desktop) or bottom nav (mobile), or go to /dashboard directly, which is also where you land after logging in.
- 2View the personalized greeting at the top which changes by time of day.
- 3Review the weekly progress strip.
- 4See Today's workout card showing the workout name, exercise count, a Start or Resume button depending on whether you've begun, a view details link, and a status (Ready/Completed/Missed).
- 5Click Start on the workout card to go to the active session logger, or click Resume if you already started to jump back in.
- 6Click the view details link to open the read-only workout inspection.
- 7Click the Log weight quick action to open a dialog, enter your weight, and save.
- 8Click the Add photo quick action to pick a file and upload.
- 9Review the Nutrition summary card showing today's calories, protein, carbs, and fat vs your goal displayed as progress bars/rings.
- 10Check the Weight trend chart showing your recent weight progress and latest progress photo thumbnails if you've uploaded any.
- 11Reload the page in your browser to pull the latest data.
→The dashboard is a snapshot of today so for full history use the dedicated pages like Workouts, Nutrition, and Progress.
Workouts & Training Plan
The Workouts page displays a weekly plan view with a 7-day Mon-Sun chip strip for day selection, week navigation arrows, workout cards showing exercises and planned sets with status pills, and the ability to view workout details, edit your own planned sets before starting, start active sessions with timer, log sets with reps and weight, mark sets logged, use RPE/RIR sync, and finish workouts with session notes and difficulty rating.
- 1Click Workouts in the navigation to go to /workouts.
- 2View the weekly plan with a 7-day Mon-Sun chip strip at the top and click a day chip to jump to that day.
- 3Use week navigation (prev/next) to look at past or future weeks.
- 4See each day's planned workout as a card showing the workout name, exercises inside it, and planned sets with weight and reps, or a Rest day card if it's a rest day.
- 5View status pills showing whether the workout is Ready, Completed, or Missed.
- 6Click a workout card to open the Workout Inspection page which is a read-only breakdown of every exercise and set, then click back to return to the weekly plan.
- 7Find the link to Plan Inspection for the read-only full-plan view showing blocks, workouts, exercises, and sets to see the whole template your trainer assigned.
- 8On the weekly plan, expand the day's workout to inline-edit your own planned sets including weight, reps, RPE/RIR, and the to-failure/myo-rep/dropset flags, and edit workout notes, then save your changes which are your personal tweaks to the plan.
- 9From the Workouts page or Dashboard, click Start on today's workout to open the Active Session page with a session timer running at the top.
- 10For each exercise in the Active Session, fill in your reps and weight per set using inline steppers, tick the checkbox at the end of a set row to mark it logged, toggle to-failure if you took a set to failure, add a per-set note if desired, and use RPE/RIR sync by entering one value which auto-updates the other.
- 11See completed exercise groups auto-collapse so you can focus on what's next.
- 12Click Finish to end the workout, optionally add session notes, and the session is saved and marked completed.
→You can delete a finished session from Session History if you finished by mistake and then re-do the workout.
Session History
The Session History page shows a paginated list of your past workout sessions with each entry displaying the workout name, date, duration, total volume, and a delete action. You can click a session to view its summary page with detailed logged sets, and delete sessions if needed which removes them permanently.
- 1Go to /workouts/history to view the Session History page.
- 2View the paginated list of your past workout sessions.
- 3See each session entry showing the workout name, date, duration, total volume, and a delete action.
- 4Click a session to view its summary page with detailed logged sets.
- 5Click the delete action on a session and confirm the deletion to remove it permanently.
→Use the summary page to compare how a workout felt vs last time you did it.
Nutrition & Meal Tracking
The Nutrition page displays a daily macro summary at the top with calories, protein, carbs, and fat vs goals shown as progress bars/rings and an energy-balance ring, day navigation for past/future days, assigned meal plan with meal slots by type showing selectable meal options and max-picks limits, logged records for the day, and an Add custom meal action for logging off-plan meals.
- 1Click Nutrition in the navigation to go to /nutrition.
- 2View the daily macro summary at the top showing today's calories, protein, carbs, and fat vs your goal with progress bars/rings and an energy-balance ring.
- 3Use day navigation (prev/next) to look at past or future days.
- 4See the assigned meal plan if your trainer assigned one with meal slots by type (Breakfast, Lunch, Dinner, Snack) each showing selectable meal options and a max-picks-per-slot limit.
- 5View logged records for the day showing everything you've already logged which you can view or delete.
- 6To log a meal from your assigned plan, find the meal slot (e.g. Breakfast), browse the meal options your trainer added, click the option you ate which logs it instantly and updates macro totals, and respect the max-picks-per-slot limit shown on the slot.
- 7Click Add custom meal to open a dialog, enter the meal name, meal type (breakfast/lunch/dinner/snack), and the macros (calories, protein, carbs, fat), then save to add the meal to your logged records and update totals.
- 8Click a logged record to view its details in read-only mode.
- 9Click the delete action on a record to remove it which updates your totals.
- 10Click a meal option to open the meal detail view in read-only mode for clients showing macros and description.
→If your trainer hasn't assigned a meal plan you can still log custom meals using Add custom meal.
→Use day navigation to back-fill meals you forgot to log on previous days.
Progress Tracking (Weight, Measurements, Photos)
The Progress page features a range selector at the top (7 days, 30 days, 90 days, or custom range), summary KPI tiles showing deltas for weight, body fat %, and muscle mass, and segmented tabs for Weight, Measurements, Photos, and Body Composition. You can log weight entries, body measurements, progress photos, and compare photos side-by-side with a draggable before-after slider.
- 1Click Progress in the navigation to go to /progress.
- 2Use the range selector at the top to choose 7 days, 30 days, 90 days, or a custom range.
- 3View summary KPI tiles showing deltas for weight, body fat %, and muscle mass over the selected range.
- 4Go to the Weight tab and click Add weight or use the quick action on the dashboard, enter your weight and the date, then save to update the trend chart.
- 5Click a weight entry to edit it by updating the values, or click it and choose delete to remove it.
- 6Go to /progress/weights for a full weight history view on the Weight History page.
- 7Go to the Measurements tab and click Add measurement, pick the body part (neck, chest, waist, arms, legs, etc.), enter the circumference and the date, then save.
- 8Click a body part to open the Bodypart Detail page at /progress/bodypart/:bodypart to see a per-body-part trend chart, and edit or delete entries from there.
- 9Go to the Photos tab and click Add photo, pick an image file from your computer using the browser file picker, choose the pose (Front/Side/Back/Other) and the date, then upload to see the photo appear in the gallery grouped by month and date.
- 10Click Compare or go to /progress/compare to open the Photo Comparison page, pick a before photo and an after photo using date pickers and filmstrip, filter by pose (front/side/back/other), and view them side-by-side or use the draggable before-after slider to swipe between the two.
→Consistency matters more than perfection so log weight and photos regularly for meaningful trends.
→Take photos in the same pose, lighting, and time of day for the best comparisons.
Weekly Check-Ins
The Check-ins page displays a two-column layout on desktop with check-in history on the left and submission form on the right, or stacked history on mobile with a + New Check-in entry point. You submit weekly reports including weight, average sleep hours, daily steps, cardio minutes, energy/hunger/digestion ratings, optional menstrual cycle phase tracking, and custom notes, with the form pre-filling from your last submission.
- 1Click Check-ins in the navigation to go to /check-ins.
- 2View the two-column layout on desktop with check-in history on the left and submission form on the right, or stacked history on mobile with a + New Check-in entry point.
- 3See your check-in history showing past submissions with dates.
- 4Open the check-in form by clicking + New Check-in on mobile or using the form on the right on desktop.
- 5Enter your weight, average sleep hours, daily steps, cardio minutes.
- 6Rate your energy, hunger, and digestion using the sliders.
- 7Optionally track your menstrual cycle phase if applicable.
- 8Add a custom note with free text for anything you want your trainer to know.
- 9Submit the check-in, noting that the form pre-fills from your last submitted check-in so you only need to update what's changed.
→Check-ins are the main way your trainer reviews your week so submit one regularly usually weekly.
→Be honest with the sliders as your trainer uses them to adjust your plan.
Coach Requests (Join Requests)
The Coaching History page at /coach-requests shows your join requests with each row displaying the trainer's avatar, name, request date, and status pill (Pending/Accepted/Rejected). You can enter a coach code to connect to a trainer, cancel pending requests, and view details for each request. If the list is empty you see a polished empty state with an Enter Coach Code call-to-action.
- 1Go to /coach-requests to open the Coaching History page, reachable from the onboarding coach-code step or directly via the URL.
- 2View the page header with subtitle and list of your join requests.
- 3See each row showing the trainer's avatar, name, the date you requested, and a status pill (Pending/Accepted/Rejected).
- 4Click View Details link per row for more information.
- 5If the list is empty, see a polished empty state with an Enter Coach Code call-to-action.
- 6Click Enter Coach Code or use the coach-code input on the page, type the 6-character invite code your trainer gave you, and submit to send a join request which gives you app access immediately while trainer acceptance happens in the background.
- 7Find a pending request in the list and click the cancel action, then confirm to withdraw the request.
→If your request is Pending your trainer hasn't decided yet but you can still use the app.
→If your request is Rejected you can try again with a different trainer's code.
→If you don't have a code ask your trainer for their 6-character invite code.
Scaling Suggestions
The Scaling Suggestions page at /scaling displays a segmented filter (All/Pending/Applied) and suggestion cards showing the exercise name with icon, status, quoted rationale for why the suggestion was made, relative timestamp, and proposed change such as increase weight by 2.5 kg or add a set. You can read your scaling suggestions which are read-only for you, and send new suggestion requests to your coach via chat.
- 1Go to /scaling to open the Scaling Suggestions page.
- 2Use the segmented filter to view All, Pending, or Applied suggestions.
- 3View suggestion cards showing the exercise name with icon, status, quoted rationale, relative timestamp, and proposed change.
- 4Read your scaling suggestions which are read-only for you as approving or rejecting is a trainer-only action.
- 5Click + New Suggestion to open a chat message to your trainer so you can request a change such as the weight feels too light on squats.
→Scaling suggestions are usually generated automatically from your recent workout performance such as if you're flying past rep targets the system may suggest increasing weight.
→Your trainer reviews and approves or rejects these suggestions.
Payments
The Payments page shows your pending payment requests with your trainer's bank account details and variable symbol for making bank transfers, your paid history of completed payments, and any active recurring contracts if your trainer set up recurring billing. This is a read-only view where you pay by bank transfer using the displayed details and your trainer marks payments as paid after receiving them.
- 1Click Payments in the navigation to go to /payments.
- 2View your pending payment requests each showing the amount and importantly your trainer's bank account details and a variable symbol so you know where to send the money and what to put in the payment reference.
- 3View your paid history showing payments you've already made.
- 4View any active recurring contracts if your trainer set up recurring billing.
- 5Pay by bank transfer using the displayed bank account number and variable symbol, with the actual transfer happening in your banking app while GainSync just shows you the details.
- 6You cannot create payment requests or mark yourself paid as those are trainer-only actions.
- 7Once your trainer confirms a payment was received it moves from Pending to Paid.
→GainSync doesn't process payments directly, it just shows you where to send the money.
→Supported currencies are CZK, EUR, and USD which your trainer chooses.
Chat With Your Trainer
The Chat page opens your conversation with your trainer showing a contact header with avatar, name, and online status, message thread with day dividers and message bubbles, quick-reply chips above the composer, and an attachment picker for sending images and documents. You can send text messages, use quick replies, attach files, scroll through history with infinite scroll, and see online indicators and read receipts.
- 1Click Chat in the navigation to go to /chat.
- 2View the contact header with avatar, name, and online status (green indicator if online).
- 3See the message thread with incoming (dark, left) and outgoing (red, right) bubbles with timestamps and day dividers.
- 4Click the text box at the bottom, type your message, press Enter to send or Shift+Enter to add a new line without sending.
- 5Click any quick-reply chip above the composer to insert and send that phrase instantly.
- 6Click the attachment icon in the composer, pick an image or document from your computer, and it uploads and sends in the thread.
- 7Scroll up in the thread for infinite scroll where older messages load automatically.
- 8See the Seen checkmark telling you your trainer has read your message.
→If your trainer is online you'll see a green indicator in the header.
→The Seen checkmark tells you your trainer has read your message - if you don't see it they haven't opened the conversation yet.
Notifications
The Notifications page at /notifications displays a paginated feed of notifications with each row having a bold title, dimmed body, created date, and red dot when unread. Filter chips allow filtering by type (All/Join Requests/Plans/Sessions/Payments/Other), and clicking notifications marks them read and deep-links you to relevant sections based on the notification type.
- 1Click the bell icon in the top bar to go to /notifications.
- 2View the paginated feed of notifications with each row having a bold title, dimmed body, created date, and red dot when unread.
- 3Use filter chips to filter by type: All, Join Requests, Plans, Sessions, Payments, or Other.
- 4Click Mark all read action to mark every notification as read and clear the unread badge on the bell.
- 5Click any notification row to mark it read (red dot disappears) and be deep-linked to the relevant section based on type: Plan assigned goes to Workouts, Meal plan assigned goes to Nutrition, Session events go to Session History, Payment events go to Payments, Join request updates go to Coach Requests.
- 6Scroll or click Load more to fetch older notifications.
→The red dot indicates unread and once you click a notification it's read forever.
→Deep-linking saves clicks such as clicking a new plan assigned notification takes you straight to the workouts page.
Profile & Settings
The Profile page at /profile displays your avatar, name, role badge (Client), bio, stat-tile row, and editable sections for Personal Info (first name, last name) and Contact (username, email) plus a fitness goal section showing your current goal and target weight. Settings at /settings include Account options (email, change password, delete account), Notifications toggles, Appearance theme swatches, About & Support links, language switch, and logout options.
- 1Click your avatar in the top-right (desktop) and choose Profile, or go to /profile.
- 2View the centered header with avatar, name, role badge (Client), and bio.
- 3See the stat-tile row and editable sections for Personal Info and Contact.
- 4View the fitness goal section showing your current goal and target weight.
- 5Click Edit to make inline fields appear in each section, update your first/last name, username, etc., then click Save to update your profile.
- 6Click the avatar circle to pick an image file (JPEG, PNG, or WebP) which uploads and replaces your current avatar.
- 7In the fitness goal section click Edit, pick a new goal (Fat loss/Muscle gain/Recomp/Performance) and/or update your target weight, then save.
- 8Click your avatar in the top-right and choose Settings, or go to /settings.
- 9View stacked cards for Account (email, change password, delete account), Notifications (toggles), Appearance (theme swatches), and About & Support links.
- 10Find the language switch and pick Čeština or English to update the interface immediately.
- 11Use the logout action in the avatar menu to log out of this device, or use Log Out of All Devices at the bottom of Settings.
- 12In Settings → Account find change password to have a reset link sent to your email, follow the link to set a new password.
- 13In Settings → Account find delete account to confirm deactivation.
- 14In Settings → Account find change email, enter your new email, click the confirmation link sent to the new email to complete the switch.
→Some settings rows like notification toggles and theme variants are UI-only and not yet wired to the backend and may not persist.
→The core actions of language, logout, password reset, email change, and deactivate work fully.
FAQ & Troubleshooting
This FAQ section addresses common issues including not receiving confirmation emails, forgotten passwords, lost coach codes, pending join requests, accidentally finished workouts, macros showing 0, changing trainers, photo upload issues, language switching, account deletion, understanding RPE/RIR and advanced set techniques, missed workout status, messaging trainers, payment methods, and non-functional Google sign-in.
- 1If you didn't get a confirmation email after signing up, check your spam/junk folder, use the Forgot Password page to trigger a reset email, or contact your trainer or GainSync support.
- 2If you forgot your password, go to the Login page, click Forgot password, enter your email, check your inbox for a reset link, click it, and set a new password on the Reset Password page.
- 3If you forgot your coach's invite code, ask your trainer for their 6-character invite code which they can find on their dashboard, then enter it on the Coach Requests page or during onboarding.
- 4If your trainer hasn't accepted your join request yet, you can still use the app as access is granted the moment you submit a coach code.
- 5If you finished a workout by mistake, you can delete the session from Session History at /workouts/history and then re-do the workout.
- 6If your macros show 0, your trainer hasn't assigned you a nutrition goal yet so message them or wait until they assign macros.
- 7To change your trainer, end the relationship with your current trainer by asking them or having them use the end-relationship action, then enter a new trainer's coach code on the Coach Requests page.
- 8If you can't upload a progress photo, make sure the file is JPEG, PNG, or WebP and not too large, try a different browser, and note the web app uses your browser's file picker with no built-in camera.
- 9To switch the app's language, go to Settings at /settings and use the language switch to pick Čeština or English.
- 10To delete your account, go to Settings → Account → delete account and confirm.
- 11RPE means Rate of Perceived Exertion (how hard a set felt, typically 1-10 where 10 is all-out), RIR means Reps In Reserve (how many more reps you could've done with good form), and they're two ways to express the same effort with auto-sync.
- 12To-failure means you couldn't complete another rep with good form, myo-rep is an advanced technique with a heavy trigger set followed by short rest-pause follow-up sets, and dropset means reducing the weight mid-set to squeeze out more reps.
- 13If your workout shows as Missed but you did it, you probably didn't start/finish a session in the app for that day so start a session for that workout and log your sets.
- 14To message your trainer, click Chat in the navigation to drop straight into your conversation where you can send text, images, documents, and use quick-reply chips.
- 15To pay your trainer, go to Payments, find the pending request, note your trainer's bank account number and variable symbol, make a bank transfer in your banking app using those details, and your trainer confirms receipt to move it to Paid.
- 16The Sign up with Google button doesn't work as expected on the web app so use email/password.
