Project detail · technical deep-dive
Strings Brasil
App to buy and sell digital coins from your favorite artists, with marketplace and multi-organization admin system.
Role
Engineering & architecture
Timeline
2022
Tech
Flutter, Node.js, Redis, marketplace
171 page views
Product showcase
Flows & screens
Authentication and onboarding—wallet-ready accounts for fans and org staff.
15k+
Peak concurrency
4k+
Go-live traction
Flutter
Stack
Technical implementation
Marketplace + wallet
End-to-end coin economy with purchases, raffles, and admin tooling for multiple organizations.
Scale & reliability
Architecture tuned for launch spikes and sustained concurrent usage during artist-led campaigns.
Admin insights
Back-office exports, charts, and operational views for partners managing inventory and orders.
Experience the result
Live product, repository, or both—pick what matters for this case.
Description
Strings Brasil is an innovative mobile application that connects fans and artists through digital coins. Users can buy and sell coins from their favorite artists, use them to purchase exclusive products in our marketplace, and participate in raffles for unique prizes, including autographed items and concert tickets.
The app was initially developed in Angular and later rebuilt in Flutter to enhance performance and user experience. In its first hour of launch, Strings Brasil generated over R$ 20,000 in revenue and supported more than 4,000 simultaneous users. The platform gained national attention when one of Brazil's biggest singers, Gusttavo Lima, promoted it during a live stream, resulting in nearly 40,000 accesses.
Features
- Digital Coin Trading: Buy and sell coins from your favorite artists.
- Marketplace: Use your coins to purchase exclusive products and participate in raffles for prizes such as autographed merchandise and concert tickets.
- Wallet Management: Track your balance, deposit, and withdraw coins easily.
- Multi-Organization Admin System: Companies can manage their products, monitor order statuses, export spreadsheets and charts, and analyze sales and profits within the platform.
- Scalable Architecture: Built to handle thousands of users simultaneously with real-time updates.
- Modern UI: Clean, intuitive, and engaging interface for both fans and administrators.