
Free
About
Think with your brain. Work with your thumbs.
thumbs.work is a notepad that does the math for you. Type a line in plain language and the answer appears right next to it. No equals button, no modes, no switching apps.
CALCULATE AS YOU TYPE
Every line evaluates instantly. Add up a bill, split it four ways, work out a budget. Change units for recipes in a single number. A full scientific set is built in: square roots, powers, logs, trig, factorials, and constants like pi and e.
CONVERT ANYTHING
Length, volume, weight, temperature, speed, area, data, even CSS units. Just write "10 km to miles" or "2 cups to ml" and get a clean answer.
SKIP THE TIME ZONE MATH
"9am PST to UTC", "time in Tokyo" — written the way you'd actually say it.
RUNNING TOTALS
Numbers on consecutive lines form a block. Type "sum" or "average" to total them, and "prev" to reference your last result.
SEPARATE SCRATCHPADS
Keep one for everything... groceries, travel, bills, a project. Rename, reorder, and search them. Import and export as JSON, Markdown, CSV, or plain text.
A notepad for your thoughts. A calculator for real life.
Works with plain text, markdown, and our own .calc files.
MANY THUMBS, NO LIMIT
Keep as many documents of every type as you like, free. Sync, every theme, and import/export are free too.
SUBSCRIPTION
thumbs.work Pro removes the single in-app promo card and supports an independent developer. Everything else is already free.
• Pro Monthly — $2.99 per month
• Pro Yearly — $19.99 per year
Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. Manage or cancel your subscription in your Apple Account settings after purchase.
Terms of Use: https://thumbs.work/terms
Privacy Policy: https://thumbs.work/privacy
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What's New in thumbs.work
1.0
August 27, 2026




