Calculus doodlus vs Calculator

Calculus doodlus keeps your calculations visible, line by line. Read them back, continue where you left off, or go back and change any number. • Edit, copy & link Touch and hold any number to edit it. Tap a line to reuse its value, or double-tap to link it to another calculation and keep the values in sync. • Percentages & VAT Calculate percentages or deduct VAT with ease. The calculation remains visible, so you can see exactly how the result was obtained. • Keep your calculations Your pages are saved automatically. Keep recent calculations, pin important ones, rename and share them, and switch between pages with a swipe. • Big numbers, exact results Every operation is performed digit by digit, the same way you learned in school. That's how Calculus doodlus handles very large numbers while keeping exact results on the page. • Make it your own Customize the keyboard color and replace its digits with your own handwriting. Add Calculus doodlus to your Lock Screen or Control Center for one-tap access. 4.8 stars from more than 10,000 ratings Every 2 seconds, someone somewhere in the world starts a new calculation page. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Simple and efficient, your portable computing assistant A smart calculator designed specifically for iOS users that combines basic calculations with practical functions. The interface is simple and intuitive, and the operation is smooth and seamless. Whether it's daily shopping calculations, work data calculations, or student homework calculations, it can easily handle them, making calculations more efficient and convenient! Core Features Highlights *Accurate and fast basic calculations: supports basic operations such as addition, subtraction, multiplication, division, percentages, decimal points, etc., with fast input response and accurate calculation results, meeting various daily basic calculation needs. *Expanded support for scientific computing: Built in trigonometric functions (sin/cos/tan), logarithms (log/ln), square roots, power operations and other scientific computing functions, suitable for complex computing scenarios in student learning and professional work. *Clear History Record: Automatically saves the calculation process and results, making the history record clear at a glance. Supports one click clearing, making it easy to trace back the calculation steps and avoiding duplicate input. *Ad free and pure experience: No pop-up ads or push interference throughout the entire process, focusing on computing functions, bringing you a refreshing user experience. *Exchange rate conversion: Provide the latest exchange rates and real-time currency conversion. *Unit Conversion: Multiple unit conversions for length, area, and volume. *Photo Q&A: When encountering a problem that you don't know, you can get the answer by taking a photo and analyze and solve the difficult problem. 1. Payment: The user deducts the payment through their iTunes account and makes the payment upon confirmation of the purchase 2. Renewal: The user's iTunes account will be charged within 24 hours before expiration, increasing the corresponding subscription period 3. Cancel Renewal: To cancel the renewal, go to "iTunes Store and App Store" ->click on "App ID", enter the "Account Settings" page, click on "Subscription", and select "Cancel Subscription" 4.Privacy Policy: https://docs.google.com/document/d/1ghPoJCDEIL-ulLKKRGZnAT3ElLHnrByBVNcNk1-4KZw/edit?usp=sharing 5. Terms of Use: https://docs.google.com/document/d/1T0xcbyYZdcv3c67krI91k-GHwHbOz6oPvm3Aje8LNXo/edit?usp=sharing