NoteCalc vs Jotsum
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
NoteCalc
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Stop juggling apps! NoteCalc is the revolutionary smart calculator and notepad that lets you perform calculations inside your notes. Itβs the perfect blend of a simple text editor and a powerful math solver, designed for students, engineers, and professionals. NoteCalc seamlessly combines a powerful text editor with a live math engine. Perform complex calculations, manage your finances, or solve engineering equations, all in one organized space. Your results update in real-time as you type! A CALC THAT DOES MORE β’ Variables: Finally, a calculator with memory! Assign values to words like price = 49.99 or total = price * 1.07 and reuse them anywhere. β’ Live Math Solver: Your equations are solved instantly as you type. No need to press equals. It's a true auto calc experience. β’ Unit Converter: Seamlessly convert between units right in your expressions. Handle length (meters, feet), weight (kg, lbs), volume (liters, gallons), and more. β’ Currency Converter: Get real-time exchange rates for 30+ currencies, including USD, EUR, GBP, JPY, and even cryptocurrencies like BTC and ETH. Perfect for finance and travel planning. β’ Smart & Scientific: From basic arithmetic to complex expressions with parentheses, NoteCalc handles it all. It supports large number suffixes (2.5M for 2,500,000) and scientific notation. YOUR MATH, ORGANIZED β’ Notepad Interface: Ditch the clunky calculator buttons. Type your calculations naturally in a clean, note-based workspace. β’ Multiple Notes: Create separate notebooks for every project, class, or budget. Keep your work organized and easy to find. β’ Auto-Save: Never lose your progress. All your notes and variables are automatically saved. β’ Search & Manage: Quickly find the note you need. Rename, duplicate, or delete notes to keep your workspace tidy. INTELLIGENT & INTUITIVE β’ Syntax Highlighting: Numbers, variables, units, and comments are color-coded, making your calculations easy to read and debug. β’ Comment Your Work: Add notes and explanations to your math using // or # to document your process. β’ Error Checking: Smart error highlighting instantly shows you if an expression is invalid, so you can fix it fast. β’ Variable Tracking: See a live list of all the variables you've defined in your note. PERFECT FOR: β’ Students: A must-have for math, physics, chemistry, and engineering homework. Keep your work neat and show your steps. β’ Engineers & Scientists: Perform complex calculations with units and variables. Perfect for quick checks and scratchpad work. β’ Business & Finance Professionals: Create quick budgets, forecast revenue, and calculate profit margins without a spreadsheet. β’ Everyday Use: Ideal for personal finance, project planning, and quick currency or unit conversions. NoteCalc is the ultimate productivity tool for anyone who works with numbers. It's the smart calculator that grows with your needs. Download NoteCalc today and transform the way you calculate! Privacy Policy: https://www.dzeveckij.studio/apps/notecalc Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Jotsum
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Jotsum is a calculator you write in plain words. Type your math and notes on the left; the answers appear on the right, live, as you type β no equals key, no buttons, no fuss. Itβs the everyday calculations you actually do: splitting a bill, converting currencies at todayβs rate, working out a percentage off, adding up a trip budget, or checking how many days until a deadline. Name your values and reuse them down the page, and Jotsum keeps the whole sheet in sync. SYNCS WITH YOUR MAC Your calculations sync over iCloud, so the sheet you start on your Mac is on your iPhone β and the other way around. No account, no sign-in; it uses your own iCloud. WHAT IT DOES β’ Plain-language math with variables β name a number, reuse it anywhere β’ Live currency conversion (160+ currencies + Bitcoin/Ethereum, no API key, no login) β’ Units β length, mass, time, volume, data, temperature, area, speed β’ Percentages done the human way β β20% off 80β, β12 is what % of 60β β’ Dates & durations β β3 days + 5 hoursβ, βdays until christmasβ, time zones β’ Scientific functions β sqrt, sin/cos/tan, logs, exp, powers, plus pi, e, tau β’ Finance β compound interest and mortgage payments β’ Multiple notes, organised in a tidy list PRIVATE BY DESIGN Everything stays on your devices and your own iCloud. No account, no analytics, no tracking. Currency rates are the only network request, and the app works offline too. Light and dark, with a warm editorial look thatβs easy on the eyes all day. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Jotsum at every 5 days against NoteCalc's every 5 months. NoteCalc's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. NoteCalc sells 2 in-app purchases, starting at $3.99 per month and Jotsum sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
NoteCalc ships an update every 5 months, Jotsum every 5 days. Both last shipped on November 5, 2026.
| Parameter | NoteCalc | Jotsum |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 5 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 32 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | David Dzeveckij | Hrvoje Matosic |
In-app purchases
NoteCalc
- Full App Access (Monthly)$3.991 Month
- Full App Access (Lifetime)$14.99
Jotsum
- Jotsum Pro$0.991 Month
- Jotsum Pro Yearly$9.991 Year
- Jotsum Pro$29.00









