Features Pack Keys

eCalc

Sale Counter Calculator

A fast, no-fuss calculator for Android, built for the exact rhythm of a shop sale counter — not a general-purpose calculator repurposed for the till, a tool designed around how a real counter actually works.

Get it on Google Play See what's inside

Why eCalc is different

Most calculator apps are built for arithmetic homework. eCalc is built for a busy counter, case sales, and a running tab.

Real counter math, entered exactly as you'd say it

eCalc evaluates strictly left to right, with no textbook order of operations — 2 + 3 × 4 comes out 20, exactly the way you'd total it up by hand at the counter, not 14. It matches how sales are actually rung up, not how a classroom calculator is graded.

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Pack-size keys

14 customizable pack-size keys — type a unit count and tap a size to get the case total instantly, no manual multiplication per sale.

M

Running total & independent memory

A running total accumulates automatically as you go. A separate, user-controlled memory (M+/M−) is always visible and one tap away.

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Full transaction tape

Every calculation for the session is logged in order, right on screen — a real audit trail, not just a single throwaway answer.

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Indian digit grouping

Totals display grouped the way Indian currency actually reads — 12,34,567 — not the international 1,234,567 style.

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Built for speed

Large touch targets and a layout designed for one-handed, rapid entry during a busy counter rush.

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Offline & private

No account, no internet required. Pack sizes, memory, and totals are saved on-device and persist between sessions.

Pack sizes, right on the keypad

14 keys plus a settings gear, paged 5 at a time — set your own sizes once, then it's one tap per case.

120/px 140/px 150/px 180/px 200/px ⚙
eCalc idle screen, showing the full keypad with pack-size keys
Idle
eCalc mid pack-size calculation: 24 times a 120-pack size key showing 2,880
Pack-size key in use
eCalc showing memory, running total, and transaction tape with a pack-size annotation
Memory, total & tape

Free to use

No account, no subscription — supported by ads.

Your calculation data — pack sizes, memory, running total, and transaction tape — stays on your device and is never used for analytics or profiling; it exists solely to power the app's own features. Where advertising is shown, that data is handled by Google AdMob under Google's own policies, as described in our Privacy Policy.