Portfolio/Basixx
Case Study - Fitness App Development

Build a Global Fitness Marketplace Like Basixx

Basixx is a global gym access platform that solves workout consistency for travelers. We designed and built it from scratch - user app, gym portal, QR validation, and wallet system included.

Built with scalable architecture and global-ready systems

Build Similar App
Fitness AppMarketplaceQR AccessMulti-CurrencyFlutterSupabase

The Problem

The Fitness Routine Breaks When Location Changes

The problem exists on both sides of the market. Travelers cannot access gyms easily, and gyms cannot monetize those travelers efficiently. Nobody has built the bridge.

For Travelers and Fitness Users

Demand side problem

Travelers struggle to maintain workout routines while away from home

Gym memberships are locked to a single location - useless when you travel

Finding temporary gym access in a new city is time-consuming and uncertain

Paying for short-term access in a foreign currency creates friction

No simple, instant system to discover and book a gym pass in minutes

For Gym Owners

Supply side problem

Gyms lose significant revenue from travelers and short-term visitors

No structured system exists to manage temporary access passes

Manual entry handling is inefficient and not scalable

Revenue from short-term usage is hard to track and report

There is no digital flow connecting pass purchase to entry validation

There is a clear gap between demand (travelers) and supply (gyms)

Market Analysis

Why Existing Solutions Do Not Work

The problem is not awareness. The problem is that the entire gym industry is architecturally built around long-term commitment. Travelers simply do not fit.

Long-term focus only

Gyms are set up to sell annual and monthly memberships. Short-term visitors are an afterthought, not a designed revenue stream.

No infrastructure for travelers

The existing gym management software does not have a concept of a temporary visitor pass. Everything assumes residency.

Temporary access is not digitized

Where short-term access does exist, it is handled manually at the front desk - no online booking, no instant confirmation, no QR.

Payment systems are not global-friendly

Most gym payment setups are designed for local currency. International visitors face conversion barriers or simply cannot pay.

Entry and purchase are disconnected

There is no link between the purchase of a pass and the validation of entry. You pay somewhere and show something at the door.

The Solution

Basixx Is the Bridge Between Users and Gyms

We built a two-sided marketplace that handles discovery, booking, payment, entry validation, and revenue tracking in one connected system.

Global Gym Discovery

Users can browse gyms nearby using a list or map view, see full profiles with photos, timings, and pass options - wherever they are in the world.

Flexible Short-Term Passes

No contracts, no commitments. Users buy exactly what they need - 1 day, 3 days, 1 week, or 1 month - and the pass activates instantly.

Instant QR-Based Entry

Once purchased, the user receives a unique QR code. The gym scans it on entry. No manual checks, no friction, no confusion.

Multi-Currency Payments

Users pay in their local currency regardless of where the gym is located. Payment friction is eliminated at the point of purchase.

Gym Onboarding and Profiles

Gym owners register with full media support - photos, videos, and operational details. Their profile becomes their digital storefront.

Wallet and Revenue Tracking

Earnings go into a gym wallet. Owners see total passes sold, revenue, and usage history - and can withdraw funds when ready.

Product Flow

How the Product Works End to End

Two complete user journeys - one for fitness enthusiasts, one for gym owners.

User Journey

Fitness Enthusiast

01

Discover Gyms

Browse nearby gyms by location using list or map view.

02

Select a Pass

Choose from 1 day, 3 days, 1 week, or 1 month pass options.

03

Pay Locally

Pay in your own currency with a secure checkout flow.

04

Receive QR Pass

Get an instant QR code pass delivered to the app.

05

Scan and Enter

Show your QR at the gym. Get scanned. Walk in.

Gym Owner Journey

Business Side

01

Register Gym

Sign up and create a complete gym profile.

02

Add Media and Details

Upload photos, videos, timings, and description.

03

Create Passes

Define pass types and set pricing per duration.

04

Validate Entry via QR

Scan user QR codes at the door with the built-in scanner.

05

Track and Withdraw

Monitor revenue, usage, and withdraw from your wallet.

Features

Everything Built Into One Product

Two complete feature sets - one for users, one for gyms - shipped together as a connected platform.

User App Features

Nearby gym discovery with map and list view

Flexible short-term passes from 1 day to 1 month

Pay in your own local currency

Instant QR code pass on purchase

No membership or long-term commitment required

Full access history and receipt tracking

Gym Owner Features

Gym profile with photos, videos, and timings

Pass creation and pricing management

Live analytics - passes sold, revenue, and usage

Wallet system with withdrawal support

Built-in QR scanner for pass validation at entry

Visitor history and usage reporting

Technical Execution

How We Built It

Every technical decision was made to support global scale, fast iteration, and a seamless user experience on both sides of the platform.

Flutter

Single codebase for iOS and Android. Consistent UI, shared business logic, faster delivery.

Supabase

Authentication, database, file storage, and real-time capabilities. Scalable from day one.

Stripe

Payment processing with multi-currency support. Handles splits, payouts, and receipts.

Google Maps

Location-based gym discovery with map view, geolocation, and proximity search.

QR System

Server-validated QR codes generated per purchase. Scanned by the gym at entry using the built-in scanner.

Media Storage

Gym profile photos and videos are stored and served efficiently using cloud storage.

Designed for Scale

The architecture was built to support future growth without rebuilding

Admin panel for platform management

Multi-country gym onboarding

More pass types and subscription models

Advanced analytics and usage reporting

Payout expansion and financial tooling

Business Impact

Real Outcomes for Both Sides

Basixx does not just improve user experience. It creates a real business model for gyms and a genuine solution for travelers.

For Users

Workout continuity

Travelers no longer have to skip workouts. A gym is always accessible, everywhere.

Zero commitment needed

Buy only what you need. No sign-up fees, no annual contracts, no lock-in.

Instant access

From app open to gym entry in under two minutes. Discovery, payment, and QR all in one flow.

For Gyms

New revenue stream

Short-term passes turn travelers from zero revenue to paying visitors without extra effort.

Digital operations

No manual logging, no paper passes. Everything is tracked, validated, and reportable.

Operational clarity

Know exactly how many passes were sold, who used them, and what the revenue looks like.

Why This Project Matters

What Basixx Proves We Can Build for You

Basixx is not a simple app. It is a full marketplace with two user types, real-money transactions, QR entry validation, and a wallet system. If you need something complex built right, this is proof we can do it.

Ready to Build?

Want to Build an App Like Basixx?

Whether you want to build a gym marketplace, a booking platform, a fitness app, or any product with two-sided user flows - we have done it before and we can do it for you.

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