Independent studio. Everyday possibilities.

A little less friction.
A little more
possibility.

Thoughtfully made apps for everyday work. Explore RuleUrInvoice for shop billing, SysMain Pro for your PC, and SlideGo for presentations.

Explore the apps Meet the maker
Made with care in Mangaluru, India.
Small tools. Meaningful difference.
One step ahead.GradeMate 2.0 · Coming soon
Focus Flow
FocusShort breakLong break
25:00
One thing at a time
Find your rhythm.25 min session
RupeeTrackerThis week
₹ 2,450.00
A clearer picture of your spending
Interface studies · Illustrative data

Good software gets out of your way.

Built around real life
Privacy considered
Independently crafted
The FunMakerz collection

Find your everyday advantage.

Studio essentials, everyday companions,
and an honest look at what’s next.

01 / Studio essential
Pilot in testing

RuleUrInvoice

Bills, stock, customers, and Khata. An Android workspace for small shops, now in pilot testing.

AndroidShop billing
Explore the pilot
02 / Studio essential
Windows app

SysMain Pro

Understand your PC, from hardware details to health checks and troubleshooting. Also known as SysInfo Pro.

WindowsPC diagnostics
Explore app
03 / Studio essential
Windows app

SlideGo

Keep the presentation on the projector and the controls on your laptop. Slides, audio, and blackout in one place.

WindowsPowerPoint required
Find on Microsoft Store
Windows app

OneKey

Apps, files, quick notes, and everyday commands. Reach them with one shortcut: Ctrl + Space.

WindowsQuick launcher
Find on Microsoft Store
Web app

Focus Flow

Settle into deep work with a focus timer and ambient themes that match your mood.

ProductivityBrowser
Open app
Web app

RupeeTracker

Keep track of your expenses in rupees. Turn everyday spending into a clearer picture.

Personal financeExpense tracking
Open app
2.0 coming soon

GradeMate 2.0

A fresh chapter for your studies. Marks, attendance, and study insights in one place.

EducationIn development
See what’s next
Development paused

ChatBond

A communication project being reconsidered with safety and room management in mind.

CommunicationProject update
Read the update
8 apps & projectsAvailability and development updates are listed on each app’s page.
Our approach · Uffi

Thoughtful by design.
Useful by nature.

Uffi is the studio’s internal approach to building software. A simple idea: focus on what makes a tool useful, then make it easier to use.

01 / PURPOSE

Solve a real thing.

A study session. An invoice. A better view of your PC. Every tool starts with something practical.

02 / CLARITY

Keep it considered.

Clear interfaces, focused features, and fewer steps between you and what you came to do.

03 / RESPECT

Care for your data.

Offline functionality where it makes sense. App-specific privacy details so you know what to expect.

An independent perspective
Rux.
Design. Build. Make a difference.
MADE IN
INDIA
A person behind the pixels

Small studio.
Personal attention.

FunMakerz is the independent work of Rathul Das, also known as Rux — a student developer from Mangaluru, India. Built with curiosity and care, the collection brings practical ideas to life through design and code.

Rathul Das / RuxFounder, designer & developer
Meet the maker

Something on your mind?

An idea, a question, or a little feedback. The studio’s inbox is open.

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