3 apps live on Google Play

Simple, honest tools
for everyday numbers

From verifying today's gold rate to planning an EMI or sharpening your mental math — clean, fast Android apps built by Baskar Nallathambi. No clutter, no gimmicks.

Explore the apps Developer page ↗

3Android apps

11K+Downloads

100+Cities covered

FreeTo download

Apps built with care

Each one does a few things really well.

GoldX Calc ★ Featured

Live gold rates & jewellery calculators

Get it on Google Play

Updated Jul 5, 2026 · 1K+ downloads · 100+ cities

GoldX Calc — today's gold rate at a glance

GoldX Calc — interactive price history charts

GoldX Calc — gold price calculator with full breakdown

GoldX Calc — wastage calculator

GoldX Calc — purchase calculator by budget

GoldX Calc — pick your city for local rates

Check today's 24K, 22K & 18K gold and silver rates for 100+ Indian cities, view interactive price-history charts, and break down any jewellery bill into gold value, wastage, making charges and GST — so you always know if you're being overcharged.

Live daily rates Price history charts Wastage detector GST breakdown 100+ cities

FinX Calc

All-in-one financial calculator

Get it on Google Play

Updated Sep 13, 2025 · 100+ downloads · EMI, FD/RD, ROI

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EMI schedules, fixed- and recurring-deposit estimators, ROI and percentage helpers — the essential finance calculators in one compact, easy-to-use app for quick money decisions.

EMI FD / RD ROI Percentage

Mastering the Numbers

Fun brain-training math game

Get it on Google Play

Updated Oct 30, 2025 · 10K+ downloads · Multiple levels

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An ascending-order number puzzle that sharpens speed and arithmetic. Multiple levels, leaderboards and simple controls make it great for kids, students and adults alike.

Brain training Multiple levels Leaderboards All ages