Hamed Rezaie
Live catalogue
Over a thousand services and dozens of countries with current prices and stock.
Web Platforms & Systems · Virtual Number Platform
Avin Sim — Virtual Number Platform
Instant virtual numbers for more than a thousand services in dozens of countries, priced in tomans with automatic refunds.
Built withNext.jsTypeScriptPrismaPostgreSQLRedisBullMQ
OVERVIEW
About the Avin Sim project
Avin Sim is built for anyone who needs a verification number to open an account on a messenger, social network or foreign service. The user picks a service and a country, sees the price in tomans instantly and gets the number with one click; the verification code appears on the same page.
Behind this simple experience is a live catalogue of more than a thousand services and dozens of countries whose prices and stock are constantly updated. Services are grouped into messengers, social networks, email and accounts, games and shops, and every popular service has its own guide page.
Challenge
In virtual number sales, the price and stock of every service in every country keep changing, and if the code never arrives the customer must not lose money. Thousands of service-country combinations had to stay current, foreign-currency prices had to be converted to tomans with the right margin, and the whole order cycle — from getting a number to receiving the code or cancelling — had to run without manual work.
Solution
A background worker regularly syncs services, countries and prices from the international supplier and builds toman prices from each user group's margin rules. Every order has a timed lifecycle: if the code does not arrive in time, the order is cancelled automatically and the amount returns to the wallet. Wallet, transactions and orders are transparent in the user account.
1000+services
100+countries
Automaticrefunds
Instantnumber delivery
KEY FEATURES
Key features of Avin Sim
Buy in three steps
Choose a service, choose a country, get the number and code on the same page.
Automatic refund
If the code does not arrive in time, the order is cancelled and the money returns to the wallet.
Toman wallet
Wallet top-up, transaction history and orders in the user account.
Service categories
Messengers, social networks, email, games, shops and more.
Guides and blog
A guide page for each popular service and how-to articles.
Secure login
Login with mobile or email and email verification by one-time code.
Admin panel
Group pricing, users, transactions and reports with two-factor login.
SCREENS
Inside pages
MOBILE
Mobile screens
What we delivered
- 01Automatic sync of services, countries and prices
- 02Toman pricing with margin rules per user group
- 03Automatic order lifecycle with cancellation and refund
- 04Wallet and transaction history
- 05Guide pages for popular services
- 06Admin panel with two-factor login
The value we created
Buying a virtual number on Avin Sim takes three steps and customers no longer worry about losing money: if the code does not arrive, the amount goes back to their wallet without any request or follow-up.
Technologies used
Next.jsTypeScriptPrismaPostgreSQLRedisBullMQ
Services in this project
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