Sumcraft · Calc by Tathya

The money calculator for India.

An everyday calculator with shop-style GST keys, 32 money and financial calculators with plain-English forms and formulas, and exact decimal maths, in lakh and crore. Offline, private, with no ads and no account.

On Android: Sumcraft: EMI, SIP & GST Calc · On iPhone: Calc by Tathya

Every money question

Loans: EMI with full schedules, prepayment, compare two offers, flat vs reducing rate, eligibility
Investments: SIP with step-up, lumpsum, SWP, CAGR and XIRR
Savings: FD, RD, PPF, SSY, SCSS, NSC, KVP and Post Office schemes
Tax and business: GST, breakeven and margin; planning for goals, retirement and inflation
Finance worksheets: TVM, NPV, IRR, MIRR, amortization, bonds, depreciation and day counts

Shows its working

Every calculator explains how the result is calculated, with charts, year-wise tables and the full schedule, ready to share as an image or export as CSV.

Private by design

No account, no servers, no analytics and no ads. Calculations run on your phone, and your saved work stays there until you export it.

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