SolverPad vs Sigma Notepad Calculator

SolverPad — Smart Notes with Live Calculations SolverPad makes everyday and technical calculations fast, clear, and natural. It’s a smart notepad with a built-in calculator, designed for people who think with numbers. Write notes the way you normally do — SolverPad instantly calculates results right inside your text. No switching apps. No copying numbers. Just notes that calculate themselves. --> Write Notes. See Results Instantly. Type regular notes like: Rent = 1200 Utilities = 150 Groceries = 400 Total = Rent + Utilities + Groceries SolverPad instantly shows the total next to your notes — clean, readable, and always up to date. Change any value, and every related calculation updates automatically. Your notes stay accurate without redoing anything. --> Variables That Update Everywhere Define values once and reuse them across your notes: hourly_rate = 25 hours = 40 weekly_pay = hourly_rate * hours Update a single number, and SolverPad recalculates everything that depends on it — instantly. Perfect for: * Budgets & expenses * Project estimates * Study notes & formulas * Freelance & hourly work tracking --> Smart Math That Feels Natural SolverPad supports: * Percentages (e.g. 20% of 500, 1000 minus 15%) * Multi-line calculations with clear step-by-step results * Unit conversions (distance, weight, time, temperature) * Clean formatting that looks like notes, not spreadsheets Your calculations appear exactly where they matter — subtle, readable, and distraction-free. --> Why SolverPad Is Different Most note apps treat numbers as plain text. Calculator apps force you to jump back and forth. SolverPad combines both — so numbers and ideas live together. No broken workflows. No lost momentum. Just smooth thinking. --> Key Features * Live calculations as you type * Automatic updates when values change * Variable support for reusable values * Percentages and unit conversions * Multi-line calculations with clear results * Clean, minimal, distraction-free design * Works offline --> Perfect For * Students & teachers * Developers & engineers * Budgeting & expense tracking * Project planning & estimates * Quick math and daily calculations Whether you’re planning finances, solving problems, or exploring ideas — SolverPad makes numbers and notes work together beautifully. --> Premium Upgrade Upgrade to SolverPad Premium to enjoy a completely ad-free experience and support ongoing development.

$610 left this month, before rent went out, and you never typed a sum. Sigma is a notepad that does the math while you write: every line shows its answer, and the total stays in view above the keyboard. Know what’s left before you spend it. Write "pay = $2400", then your bills, "rent: $1200" and "food: $380", and "left = pay - total" shows $820. Rent goes up? Change one number and everything below follows. Split the bill at the table. Dinner for four, tip included, comes to $51.75 each before anyone reaches for a card. Then send the whole note to the group chat as one image, every line and the total included. Know what the trip costs before you book. Flights in dollars, the hotel in euros, the train in Swiss francs: one total, all in, in your own currency. Rates stay live and keep working offline. Never add up the same list twice. Tick what’s paid and the total shows what’s still to pay. Give each part of a list a heading and each part gets its own total. Your totals, without opening a note. Ask Siri for your Groceries total in Sigma, keep a note’s total on your Home Screen with the free widget, and set a reminder on a date in your note. And all the everyday math around it. How many days until an invoice is due. Whether a 220 cm sofa fits an 8 ft wall. What you really saved at the sale. What a week of freelance work comes to. Percentages, units, dates and currencies, written the way you’d say them, with square roots, hex and trigonometry when you need them. Every line answers as you type. No formulas, no grid, and one rule to learn: a colon counts, an equals sign doesn’t. Free: three notes and the full calculator. No ads, no time limit. Sigma Pro keeps every month: unlimited notes, iCloud sync, export to PDF, Markdown and plain text, and five more themes. Sigma Pro is a single payment or monthly. Your notes stay on your iPhone, and iCloud sync uses your own private iCloud database, never our servers. Works in English and French. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getsigma.app/privacy