Erfan.

Services

Whether you need an app built from the ground up, a feature added to what you have, or an expert to help you think through what to build — here's how I can help.

Person holding a smartphone with an app on screen

Build Your Android App from Scratch

Have an idea but no app yet? I take it from concept to a working, polished app ready for the Play Store. I handle the full process — design of how the app works, building it, testing, and publishing — so you don't have to worry about the technical side. I've built apps across industries: payments, maps, charity, photo-sharing, and more.

  • A working app ready for real users
  • Handles growth without needing to be rebuilt
  • Published and live on the Play Store
Two people in a strategic discussion

Consultancy

Not sure what you need, how long it will take, or how much it should cost? I can help you think it through before you commit to anything. Whether you're a founder planning your first app, a business evaluating a vendor's proposal, or a team deciding between two directions — I give you an honest, independent perspective. No sales pitch, no conflict of interest. Just clarity on what makes sense for your situation.

  • Clear scope and direction before you spend a penny
  • Independent view on vendor proposals and cost estimates
  • Honest answers on what's realistic and what isn't
Developer working on code

Add Features or Fix Your Existing App

Already have an Android app but need something new added, or something broken fixed? I step into an existing app, understand how it works, and deliver what's needed — without disrupting what already works. Whether it's a new screen, a third-party integration, or a stubborn bug, I get it done.

  • New features shipped without breaking existing ones
  • Bugs found and fixed at the root, not patched
  • Faster, more stable experience for your users
Map navigation on mobile

Maps, Location & Navigation

If your app needs to show maps, track where users are, work in specific areas, or deal with any kind of location — this is a core strength. I've shipped multiple apps built entirely around maps and location, making them accurate, smooth, and easy on the battery.

  • Interactive maps that feel native to your app
  • Real-time location tracking without draining the battery
  • Works in areas with poor signal or no internet
Mobile payment with smartphone

Payment & Wallet Features

Need your app to handle payments, QR code scanning, digital wallets, or loyalty rewards? I've built complete payment flows for both consumer and business-facing apps — including security features like biometric login and card scanning.

  • Secure, smooth checkout experience for your users
  • QR code scanning, card payments, and wallet features
  • Merchant and customer-facing flows, both covered
Performance analytics dashboard

Performance & Battery Optimization

Getting complaints that your app is slow, crashes, or drains the battery? I find what's actually causing the problem and fix it at the root — not with quick patches. I've reduced battery usage by 50% and cut crash rates dramatically on apps I've worked on.

  • Noticeably faster app, fewer complaints from users
  • Battery usage that doesn't get your app uninstalled
  • Fewer crashes and a more reliable experience
Person reviewing code on a laptop

Code Review & Technical Consultation

Not sure if your app is built on solid ground? Considering a technical decision and want an expert opinion? I offer focused reviews and consultations — you get clear, honest answers in plain language, not jargon.

  • Know exactly where your app stands and what to fix first
  • Clear direction without wading through technical noise
  • Avoid costly mistakes before they become problems

Have something in mind?

Tell me what you're working on and I'll let you know if I'm the right fit.

Get in touch