Spacelyr
Booking appsAn Airbnb-style stays platform built for Nigeria: search by place, dates and guests, prices in more than 20 currencies, host tools, and extra services like chefs, flights and cars.
About Efetech
One developer, from idea to launch. Built to make your business grow.
Aso Efe builds websites, mobile apps and Web3 products end to end. 10+ years of experience, two live products you can open right now, and a single person accountable for your project from the first call to launch day.
- 10+
- years building web, mobile and Web3 products
- 2
- live products you can open and use today
- 3
- platforms covered: web, iPhone and Android
- 4
- app and store demos you can watch
Proof, not promises
Products I built and run myself. Open them now.
Anyone can show screenshots. These are real, working products, not mock-ups, so you can judge the quality yourself before you hire me.
CoinsWavez
Web3A live multi-chain scanner for new crypto tokens. Each token gets a Sniper Score that rates liquidity, contract risk, holders and momentum, alongside listings, presales and a watchlist.
See it working
Web stores and mobile apps, on video
Working builds of an online store and iPhone and Android apps. Open any one to watch it in action and see how it was put together.
Video
Ride Booking App
Mobile appsA mobile app to book a ride or a car with a driver: choose the car, set trip dates and pickup, pay, then follow the driver on a live map.
Flutter, Dart, live map, mobile app
Video
Flight Booking App
Booking appsA mobile flight booking app: search routes, choose a date and airline, pick a seat on the cabin map, add baggage and book.
Flutter, Dart, mobile app
Video
Naira Money Transfer App
SaaS and fintechAn iPhone money app for sending naira to a username or a Nigerian bank account, with PIN confirmation and a clear activity history.
iOS, Swift, wallet and transfers
Video
TechGadgets Online Store
StoresA working online electronics store with categories, search, a cart, wishlist, discount badges and prices in Naira.
Web storefront, cart, search, Naira pricing
Who you will work with
Aso Efe, founder & lead developer
I have spent over 10 years building web, mobile and blockchain products, and I still write the code myself. When you hire Efetech you work with the developer, not an account manager, so nothing gets lost in translation and problems get fixed fast.
My work spans booking and marketplace platforms, crypto and DeFi products, e-commerce, and mobile apps for iPhone and Android, plus the automation bots that keep them running. I build with a modern stack, design for phones first, and stay reachable after launch.
Languages I code in
- JavaScript
- TypeScript
- Solidity
- Swift
- Dart
- SQL
- HTML & CSS
I communicate in English, and work with clients worldwide across time zones (WAT (UTC+1)).
What I have built
- Crypto and token platforms with live prices, risk scores and wallet connect
- Airbnb-style booking platforms with search, calendar availability and payments
- Mobile apps in Flutter and Swift: flight booking, ride booking and money transfer
- Online stores and multi-vendor marketplaces with Stripe checkout
- Apartment and property management systems with admin, landlord and tenant roles
- Telegram and Discord bots for trading alerts, automation and communities
- DeFi portfolio dashboards with wallet tracking and transaction history
Frontend
- React
- Next.js (App Router)
- TypeScript
- Tailwind CSS
- Redux / Zustand
Backend
- Node.js
- Express
- NestJS
- REST & GraphQL APIs
- WebSockets
Web3 & blockchain
- Solidity
- Ethers.js
- Web3.js / Wagmi
- Smart contracts
- Wallet integration (MetaMask, WalletConnect)
Mobile
- Flutter (iOS and Android)
- Swift (iOS)
- React Native
- Push notifications
- Live maps and tracking
Data & cloud
- MongoDB
- PostgreSQL / MySQL
- Redis
- Docker
- AWS, Cloudflare, Netlify
Payments & commerce
- Stripe
- PayPal
- Shopify (Admin and Storefront APIs)
- Naira and multi-currency pricing
What I can build for you
Whatever your business needs, one person handles it
Business websites
Company sites that load fast and turn visitors into enquiries.
Learn more →Online stores
Catalogues, carts and payments set up for your products.
Learn more →Booking and marketplace apps
Listings, search, bookings and payouts, in the style of Airbnb or Booking.com.
Learn more →Web3 and dApps
Wallet login, smart contracts, tokens and NFT platforms.
Learn more →SaaS and dashboards
Subscription products and admin tools with live data.
Learn more →Mobile apps
iOS and Android apps for delivery, learning, fitness and more.
Learn more →How it works
A clear process, so you always know what happens next
- 01
Apply
Describe your project in a short form and upload references.
- 02
Review and quote
We reply with scope, price and timeline for you to approve.
- 03
Design and build
Follow progress, give feedback and approve designs in your private client portal.
- 04
Launch and support
We go live, host it, and keep it running and growing.
Web and Web3 under one roof
Business websites, booking marketplaces and dApps are built by the same team, so nothing gets lost between vendors.
SEO, security and management handled
Search optimisation, backups, secure setup and ongoing management are services we run for you, so you do not need separate providers.
A clear quote before work starts
Apply online and we reply with scope, price and timeline for you to approve. No surprises halfway through.
Easy to reach
Talk to us directly on Telegram, by email or through the contact form, before, during and after your project.
Have a project in mind? Let's talk this week.
Tell me what you want to build. You get an honest answer, a clear price and a timeline, with no obligation.