RSRobince Studio
Robince Studio

Apps that make
everyday life simpler.

Money, lists, learning, files and games. Eight Android apps and a set of free online tools for PDFs, JSON, CSV and images, all built to respect your privacy.

Explore appsFree online tools
  • 0Apps
  • 0+Languages in DollarWise
  • 0+Currencies supported
  • 0Developer revision guides

Find your next favourite app.

Every app has its own features, screenshots and privacy policy.

Finance

DollarWise

Convert 170+ currencies, even offline.

Get
Productivity

Listino

Shopping lists that sync and share in real time.

Get
Learning

Day to Day English

Learn English through Rahul's life story.

Get
Utilities

NearSend

Send files to a nearby phone, no internet needed.

Get
Utilities

SpaceScope

See what fills your storage, then clean it safely.

Get
Utilities

Tasbih Counter

A mindful companion for your dhikr.

Get
Games

Tic Tac Toe

The classic, plus Snake.

Get
Games

Ludora

The classic board game for up to four players.

Soon

Free online tools.

PDF, image, JSON, text and developer tools, generators and calculators. Everything runs in your browser, so your files stay private.

Free tool

PDF Merge

Combine multiple PDF files into one document in seconds. Free, no sign-up, no watermark, and your files never leave your device.

Free tool

PDF Editor

Edit PDFs in your browser: add text and images, white-out content, rotate, reorder or delete pages. Free, private, no upload.

Free tool

JSON Formatter

Format, validate, beautify and minify JSON instantly. Shows the exact line and column of any error. Free and runs in your browser.

Free tool

Image Compressor

Reduce image file size up to 90% without visible quality loss. Compress JPG, PNG and WebP in your browser. Free, private, batch download.

Free tool

Password Generator

Generate strong random passwords with custom length and characters. Uses your browser’s cryptographic randomness; nothing is sent or stored.

Free tool

QR Code Generator

Create QR codes for URLs, text or Wi-Fi. Custom colours and size, error correction levels, free PNG and SVG download. No watermark or expiry.

Free tool

EMI Calculator

Calculate monthly EMI for home, car or personal loans. See total interest, total payment and a year-by-year amortization table. Free and instant.

Free tool

Word Counter

Count words, characters, sentences and paragraphs instantly. Also shows reading time, speaking time and your most-used keywords. Free and private.

See all 216 tools Free festival greeting images

Built on a few simple ideas.

Private by default.

Most apps collect no personal information, and many keep everything on your device.

Works offline.

Core features keep working when you have no connection, then sync when you are back.

Made for everyone.

Designed for a global audience, with dozens of languages supported.

One job, done well.

Clean, uncluttered interfaces that stay out of your way.

Developer notes.

Quick-revision guides for interviews and day-to-day reference.

We are here to help.

Contact us, or find the privacy policy and account deletion page for any app.