A paper-tape calculator with editable lines and visible running totals.
Adding Machine keeps everyday arithmetic visible.
Instead of hiding the sequence behind one result, it shows a paper tape with every number, operator, running total, and final Total. That makes it easier to check a receipt, work through household spending, prepare a small invoice, or correct a calculation without starting again.
WHAT YOU CAN DO
• Build a tape with +, −, ×, ÷, percent, subtotal, and total.
• Tap any line to edit its operator, value, percentage, or label.
• Insert a line above or below an existing entry.
• Delete a line or cancel an edit safely.
• Save and share completed tapes with Pro.
• Choose decimal-place and visual settings that fit your work.
PRIVATE BY DESIGN
Adding Machine does not require an account, location, contacts, camera, or notification permission. Calculations work without a connection, and your tapes are stored only on your device. The app uses the network only to send anonymous crash reports and to check the store for updates. There are no ads.
PRO OPTIONS
Pro is available as a yearly or monthly subscription, or as a lifetime purchase. The lifetime purchase comes in three supporter tiers that unlock exactly the same features; higher tiers only add more support for development. Pro unlocks saved tapes, sharing, themes, and additional decimal-place controls. Subscriptions renew automatically until you cancel them in Google Play. Restore is available on the same store account when you reinstall.
Adding Machine is a focused paper-tape utility: visible work, quick correction, and a clear answer.
Novedades
Find the app under its clearer tape-calculator name.
Improved the first-run guide and calculator keypad layout.