Android Developer · Chennai, India

Hi, I'm Gunaseelan.
I build Android apps.

Building apps is what I do for the love of it. I take an idea all the way through on my own — the design, the code and the Play Store listing — and I've put four of them out into the world so far.

01 — About me

A bit about me

I'm an Android developer based in Chennai, India, and building apps is my hobby. It started as curiosity about how the phone in my pocket actually works, and turned into something I do most evenings — the kind of apps that are quick to open, easy to understand, and don't ask for more than they need.

Most of what I make ends up circling privacy. Not as a marketing line, but as a design choice: I'd rather keep your data on your phone than on someone's server. It makes the engineering harder and the promise simpler, and I think that's the right trade.

I care a lot about the details people never think to notice — an app that opens instantly, text that stays readable when you scale it up, an interface that works in your own language, and buttons big enough to actually hit. That's most of the work, and it's the part I enjoy.

What I'm always looking for is the next idea worth building — a small annoyance nobody has fixed yet, or something you wish your phone could do. I'm also teaching myself game development on the side, which is a good reminder of how much there still is to learn.

02 — My apps

Apps I've launched

Each one is mine end to end — the idea, the design, the code and the store listing.

Secure Notes app icon
Live Android

Secure Notes

A private vault that lives on your phone.

A single, locked place for the things you'd rather not leave lying around — passwords, private notes, personal documents, photos, and a simple way to keep track of your money.

Everything is encrypted and stays on your device. There's no account to create and nothing is uploaded anywhere, so there's no server holding your data. You open it with your fingerprint, face or a PIN, and it locks itself again when you walk away.

  • Passwords and login details, kept safe
  • Private notes, folders and attachments
  • Photos and videos hidden from your gallery
  • Everyday budgeting and expense tracking
  • Works offline, in 24 languages

Or scan the code with your phone camera

AppShield app icon
Live Android

AppShield

Mobile security scanner, privacy matrix audit & device optimizer.

Most people have no idea what the apps on their phone are really doing. AppShield combines on-device heuristic security auditing with system optimization — evaluating risk scores, flagging sideloaded APKs, and keeping your device fast and clean.

It detects unverified apps installed from outside official stores, audits camera, microphone and location access via an interactive Privacy Matrix, and includes a real-time RAM Booster and Deep Junk Cleaner. All scans run 100% locally with zero cloud uploads.

  • Heuristic risk scores & sideloaded APK detection
  • Privacy matrix auditing camera, mic, GPS & contacts
  • Real-time RAM booster & background process optimizer
  • Deep junk cleaner for residual APKs, cache & big files
  • 100% on-device analysis with zero cloud uploads

Or scan the code with your phone camera

PixelSqueeze app icon
Live Android

PixelSqueeze

Compress, resize and convert images — entirely on your phone.

PixelSqueeze is a fast, offline image compression, resizing and format conversion tool. Pick a photo, choose your quality target, and it's done — nothing ever leaves your device.

There's no account, no upload and no cloud. All processing happens on your hardware, so your photos stay yours. It supports batch jobs, custom target file sizes, and format conversion between JPEG, PNG and WebP.

  • Smart compression to a target file size
  • Batch processing for multiple images at once
  • Resize by dimensions or percentage
  • Convert between JPEG, PNG and WebP
  • 100% offline — images never leave your device

Or scan the code with your phone camera

MoneyWise app icon
Live Android

MoneyWise

A private wealth manager and debt payoff tracker that lives on your phone.

MoneyWise helps you take control of your finances without handing your sensitive bank logins to strangers. Track your everyday income and expenses, calculate your true net worth across all your accounts, and plan your way out of debt with smart payoff simulators.

Everything stays strictly private on your device. There's no account to create, no third-party servers holding your balances, and you can optionally back up encrypted copies to your own Google Drive. Open it with your fingerprint or face, and manage your money offline with total peace of mind.

  • Track cash, savings, and investments in one unified balance sheet
  • Smart debt payoff plans using Avalanche or Snowball methods
  • Simulate extra payments to see how fast you become debt-free
  • 100% private and offline — zero third-party bank linking
  • Biometric lock with optional private Google Drive backup

Or scan the code with your phone camera

03 — Contact

Got an idea worth building?

If there's something you wish an app could do — or you've just tried one of mine and want to tell me what's broken — I'd genuinely like to hear it. Email is the best way to reach me.