macOS 13+ · In App Store review

Calculations and notes, in one place.

InkCalc is an AI-native notepad calculator.
Write expressions line by line, results appear on the right — your notes accumulate over time.

Explore the AI View on GitHub
  • ⌘⇧INatural language → expression
  • ⌘⇧FFix errors
  • ⌘⇧MSummarize note
  • ⌘⇧JInfer intent
Monthly comms — InkCalc
Editing
⌘⇧M to summarize

Monthly comms total $150. That's $1,800 per year.

0 Units
0 Currencies
0 AI shortcuts
0 AI backends
AI native

Four AI shortcuts that go beyond calculation.

Pick from three backends — Anthropic Claude, OpenAI ChatGPT, or Apple Intelligence. With Apple Intelligence, everything runs on-device.

"Tokyo–Osaka shinkansen round trip × 4 people"

Write what you mean in plain language. AI converts it into an expression and inserts it for you. Trip budgets, grocery totals, the math in your head — straight to formula.

  • Send the current line to AI with one shortcut
  • Preview the diff and replace with one click
  • Pick from three backends
Your input Tokyo–Osaka shinkansen round trip × 4 people
↓
AI suggestion 14000 * 2 * 4 = 112,000
Calculator

Everything a calculation note needs.

Units, currencies, dates, hex, line refs, functions — fully equipped, even before you turn AI on.

Units & currency

Length, mass, time, volume, temperature, data sizes. Real-time exchange rates for currency.

5 km in miles=3.107 mi
1 kg as lb=2.2046 lb
100 USD in JPY=15,234 JPY

Dates & durations

Add, subtract, and diff dates. Schedules calculate themselves.

2025-04-25 + 7 days=2025-05-02
today - 2025-01-01=115 days

Hex & bit ops

0xff, 0b1010, 0o17. AND/OR/XOR, shifts, base conversions.

0xff & 0x0f=15
255 in hex=0xff
0b1010 xor 0b0110=0b1100

Line refs & aggregates

ans, line2, sum above, avg above, total — spreadsheet-grade aggregation in plain text.

100 + 200=300
ans * 1.1=330
sum above=630

iCloud Drive sync

Put your workspace on iCloud and your notes follow you between Macs. Safe concurrent edits via NSFileCoordinator.

Lives in the menu bar

Toggle the Dock icon, always-on-top window, font size and decimal precision — built for resident use.

Markdown / CSV export

One click from the status bar. Drop straight into a doc, GitHub Issue, or daily log.

MDmonthly-report.md
CSVexpenses-2026.csv

Functions, constants, variables

Trig, log, statistical functions. Assign with x = 5 and combine with line refs to compose any formula.

sqrt(2)=1.4142
sin(pi / 2)=1
avg above=1.207
Privacy

No server. No telemetry.

The developer collects nothing. No analytics, no tracking.
AI features run only when you choose.

Zero telemetry

No tracking, no analytics, no usage stats. Just an ordinary local Mac app.

Keys live in Keychain

Your Anthropic / OpenAI API keys are kept in macOS Keychain. Switch backends in settings.

On-device with Apple Intelligence

The default backend stays on-device. Apple Private Cloud Compute is end-to-end encrypted — not even Apple can read the data.

Specs

Requirements

OS
macOS 13.0 or later
Architecture
Apple Silicon / Intel
Category
Productivity
License
MIT License
Version
1.0 (in App Store review)
Support
GitHub Issues

Coming soon to the App Store.

InkCalc is currently in App Store review. Follow the repository for the latest updates.

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