Sumbrew

Sumbrew is a calculator that works like a paper notebook. Every number you type becomes a line on a ruled tape, so you can see the whole calculation at a glance. Add labels like “Rent”, “Tip” or “Per person”, and next week you’ll still know what each number meant. FEATURES • Tape-style calculation: numbers and operators stack up line by line, and “=” adds a subtotal. • Labels on every line: write down what each number is. • Live links: drag a result onto a new calculation, and it updates whenever the original changes. • Edit anything: tap a line above, change the number, and everything below is recalculated. • Percentages that make sense: add a 15% tip or take 20% off, with the amount shown beside the line. • Handy functions: √, x², 1/x, ±, π, log and powers, entered right after an operator just like on paper. • Notebooks: keep as many sheets as you like (Pro). • Export to CSV or Markdown and save to iCloud Drive or Files (Pro). • Light and dark appearance, in 15 languages. Made as a tool to reach for every day. No ads, no subscription, no account — your notes stay on your device. FREE AND PRO Sumbrew is free to use with one sheet. A one-time purchase unlocks unlimited sheets and export. Pay once, keep it forever.