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AI WORK / HISABWALA (RUPIYACALC)

A money calculator with an AI sense of humor.

An Android calculator and personal-finance toolkit with 10 country packs, 14 languages, and Claude-powered quips. It began as RupiyaCalc.

Product · Live on AndroidAndroid · Kotlin · Jetpack ComposeGet it on Google Play

The problem.

Everyday money math changes from country to country: GST or VAT, lakh and crore or million and billion, EMI and SIP. General-purpose calculators ignore that context, and most finance apps ask for personal data the user never needed to share.

What we built.

10 country packs

India, US, UK, Brazil, Indonesia, Mexico, Germany, Canada, Australia, and UAE. Each pack sets its own currency, number grouping, tax names and rates, and number words.

14 languages

English, Hindi, Bengali, Tamil, Kannada, Telugu, Marathi, Gujarati, Malayalam, Punjabi, Spanish, Brazilian Portuguese, German, and Indonesian.

Quick money tools

GST with CGST/SGST/IGST, discounts, bill splitting with tips and tax, quick EMI and SIP, and the full set of earlier RupiyaCalc calculators.

Claude-powered quips

A Claude Haiku model writes one witty line for the amount, language, and country on screen, including regional styles such as Chennai and Kolkata. A built-in library covers offline use.

Daily game layer

XP, infinite levels, sticker albums, streaks, and three rotating daily tasks.

Privacy by design

The app is offline-first and collects no personal data. Only the amount, language, and country name are sent for an AI quip.

Under the hood.

KotlinJetpack ComposeClaude API (Haiku)On-device cachingJUnit testsLocalization (14 languages)
Built responsibly. Calculators give estimates only, and in-app disclaimers are localized. Only the amount, language, and country are ever sent for an AI quip, and the app works fully offline without them.

What we can build for you.

  • Consumer apps with small, cost-controlled LLM features
  • Multi-country and multilingual product architecture
  • Offline-first apps with AI that degrades gracefully
  • Play Store compliance and data-safety preparation
Discuss a similar build

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LET’S BUILD SOMETHING USEFUL

A real problem.
A good place to start.

Tell us what you want to build, connect, or improve. We’ll work out the next step together.

Work with AIGaur