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The accountant's calculator, reinvented
Every accountant keeps a calculator on the desk — then copies the result into a spreadsheet or email and loses the logic behind it.
CalcPro is a calculator that doubles as a mini-spreadsheet and a shareable working note, right alongside your accounting software.

Intuit QuickBooks App Store listed
Works with Xero
SOC-2
TLS 1.3
AES-256
Never trains AI on your data
BEFORE
Verify a number on a handheld calculator, retype it into Excel or an email so a teammate can follow your logic — and hope they can still find the transaction behind it weeks later.
AFTER
Drag numbers in from your accounting software, calculate, annotate, and save the working as a mini-sheet you can share with juniors, seniors, reviewers, or auditors — full context attached.
How it works
01
Drag in your numbers
Pull any figure or transaction from your accounting software into CalcPro by drag-and-drop.
02
Calculate & annotate
Build relations between numbers like a mini-spreadsheet. Add date, description, amount, and note — by voice, if you like.
03
Save and share
Keep it in Calcpro format, share it as an internal or external memo, or export to markdown to hand the full context to AI.
What you get
Calculator & mini Excel in 1
Document, find and show relationships between numbers without opening Excel.
Fill directly with Voice AI
Speak up the transaction details and fill table in no time with CalcPro's voice AI
Easy drag-and-drop working
No Ctrl+C, Ctrl+V. Works alongside QuickBooks, Xero, or any spreadsheet.
Shareable working notes
Give teammates, reviewers, and auditors the logic behind a number, not a giant Excel file to dig through.
Easy markdown for AI
Download your working as markdown (.md) format and feed it to Claude directly, so it calculates the same way next time.
Easy file sharing
No more bulky spreadsheets or excel files. Share every calculation with peers, reviewers or auditors in simple format
Work in parallel with any software

QuickBooks

Xero

CSV Export
Built for the standards CPA firms demand
Your clients trust you with their books
Here's how we earn the same trust from you
TLS 1.3 encrypt
Latest encryption on all data transfers
AES-256 at rest
Highly graded encryption for stored data
US-only hosting
All servers & VMs hosted in US under SOC-2
No trained data
Your docs, transactions never train AI models