Tactile: Tape Calculator

Tactile is the tape calculator you can send. Whoever gets your calculation sees every formula and can change a number to redo the math, even without the app.

A quote, the household bills, an expense to split: instead of sending a number, you send the whole calculation.

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FROM THE TAPE TO A REPLAY

• Calculate as usual: every result stays on the tape with its full formula
• Tap REPLAY: the lines become a calculation to send, with your notes as labels
• Lines stay linked: change the area and material, labor and tax recalculate
• Share the link via Messages, WhatsApp or Mail: it opens in the browser, nothing to install
• With Tactile installed the link opens in the app: fix it and send it back

WHAT THE LINK PROVES

Whoever opens it sees every line recalculated on their own phone and can tell right away whether the arithmetic adds up. The link rechecks the math: it does not vouch that the amounts entered are true.

SHARES TO THE CENT

When you split an amount between people, shares are in cents and the remainder is spelled out: 100 split by 3 is 1 share of 33.34 and 2 of 33.33.

FREE AND REPLAY PRO

Free forever: create, share, receive, edit and send back Replays, and keep 3 saved.
Replay Pro, a one-time purchase with no subscription: unlimited saves and duplicates, search by name and date, CSV export for spreadsheets.

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ALSO

• Tip and split for up to 20 people, with SEND to share it as a Replay
• Price compare between two products: cost per unit and savings
• Scientific with parentheses and precedence, three memories
• In chained operations the display shows the parentheses: (2 + 3) × 4 gives 20, like on desk calculators
• Converter for 30 currencies on ECB rates and 28 units: optional module, one-time purchase
• 7 themes, one included

PRIVACY

No account, no ads, no tracking. Your tape, notes and saved Replays stay on your device. A Replay leaves your phone only when you share it, inside the link: the page that opens it recalculates it in the browser without sending it to any server, and only counts how many times it is opened, anonymously.

Every purchase is one-time. No subscriptions.