Built for India · FY 2026–27

Money math, made simple.

Free, fast, offline financial calculators for SIP, EMI, income tax, and take-home salary. No sign-up. No fluff. Just the right numbers.

▶Coming soon onGoogle Play 100% free · works offline · your inputs never leave your phone

What we're building

One clean app with the calculators salaried Indians actually use — accurate to current rules, and instant.

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SIP & Returns

Project your mutual-fund SIP growth, with step-up and lumpsum, in seconds.

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EMI & Loan

Home, car, or personal loan EMI — with prepayment impact and a full schedule.

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Income Tax

Old vs New regime compared side-by-side for FY 2026–27. Know which saves more.

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Take-home Salary

Turn your CTC into real in-hand pay — PF, tax, and deductions broken down clearly.

Why Eternexa

Tools that respect your time, your money, and your privacy.

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Always freeNo paywalls, no premium tricks.
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Works offlineCalculations run on your device, instantly.
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Your data stays yoursWe never collect or send the numbers you enter.
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Built for IndiaAccurate to current Indian tax & finance rules.
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No sign-upOpen the app and get your answer. That's it.
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Shareable resultsSend a clean summary to family or your advisor.

Substance over hype.

Eternexa exists to do one thing well: give you an exact, honest answer to a real money question — and then get out of your way. No motivational filler, no dark patterns. Just tools that work.