MathStudio Express vs iCoder

MathStudio Express, a full-featured scientific calculator with hundreds of mathematical functions that cover Basic Math, Pre-Algebra, Algebra, Trigonometry, Precalculus, Calculus, Statistics, Finite Math, Linear Algebra and Statistics. "MathStudio is a natural for students and for engineers who occasionally need a comprehensive math program but don't need the full horsepower and daunting complexity of Mathematica or Maple. It's a huge leap from the usual calculator program for tablets and smartphones." ▸ IEEE Spectrum Review by Kenneth R. Foster MathStudio is an indispensable tool for students, teachers, and engineers. It provides features comparable to TI calculators but with a modern and intuitive interface. "I've been waiting for a program like this a long time on my iPhone or iPad, and somehow never found MathStudio until now. This is a phenomenal engineering application for the student or professional. It does it all... Solving equations, integrating, calculating derivatives, and graphing. I had a TI-92 calculator back in my college days that I used for years and dearly loved and this app blows it out of the water. The UI is extremely functional and intuitive to use. They include a really quick tutorial that gets you up and running quickly. This is the example app for the potential of a device like the iPhone or iPad. Superb!" ▸ Fantastic... It's a TI-92 on steroids by Dan Frame Graph equations with speed and ease you never thought were possible! Move, rotate and pinch function, parametric, polar, implicit, contour, spherical, cylindrical, vector fields, fractals and image plots with amazing speed and accuracy. Use the T variable to create animated plots that graph in space and time! MathStudio is the first calculator to introduce time graphing when it was first released as SpaceTime in 2003 for Pocket PC. "This is truly an amazing piece of software for the iPhone that could potentially render all the graphing calculators out-there obsolete! I was very impressed with all the graphing features (2D, 3D, 4D, etc) and the powerful CAS loaded with preprogrammed functions. MathStudio solves and displays complex expressions in a fashion that reminds me of my TI 92's 'pretty print' mode. I highly recommend this application to every college student and math enthusiast!" ▸ Dump your graphing calculator! by Syldaril Plot lists of numerical data in scatter, histograms, box, and probability plots. MathStudio even includes an advanced regression analysis package, choose from several regression functions or create your own. "I am so lucky to find this application! I will never use TI-89 again! And the price is unbelievable! And you can do scripts! TI-89 costs over 100 dollars. You can use this application instead! Too bad our professor doesn't let us use phones on the test. I will try to convince him by showing this application. MathStudio is well worth the money." ▸ Wow! by aurorae_borealis MathStudio is powered by that fastest proprietary computer algebra system available on iOS that beautifully typesets your answers. Got a tough algebra equation to solve or polynomial to factor? Solve quadratic equations, systems of equations, limits, derivates, integrals, differential equations and much more. Create scripts in MathStudio's powerful programming language that supports variables, loops, and recursion. "This application is simply amazing. I continue to be stunned by the speed and accuracy in which it solves/plots/does just about anything you could possibly need to do in math. I prefer it to computer math applications because you simply cannot beat the touch interface. This app has changed the way that I do math every day, and I highly recommend it to anyone who does math on a daily basis." ▸ Amazing by rationalresponse

Eight years. One mission: help you master algorithms without distractions. iCoder is a LeetCode practice app trusted since day one by learners preparing for technical interviews. Version 8.0 marks our 8th anniversary with a complete SwiftUI rebuild: faster, cleaner, and ready for iOS 16 and later. Still 1000+ classic problems, still offline, still no ad popups. WHY iCODER - Born for interview prep: company-tagged problems mirror what top firms often ask - Organized by difficulty, tags, and companies so you can drill weak spots - Offline-first: the library lives on your device; browse, quiz, and widgets work without Wi-Fi - Eight years of polish: now with a modern SwiftUI interface and rich widgets BROWSE AND SEARCH - Numbered list or compact grid with adjustable columns on iPhone and iPad - Filter by Easy, Medium, Hard, VIP, favorites, and learning status - Optional Favorites and Recently Viewed at the top of the Problems tab - Search by problem ID, title, content, tag, or company - Swipe and context menus for favorites and status CATEGORIES - Algorithm tags from arrays to dynamic programming - Company collections for targeted interview practice - Smooth flow from filters to detail PROBLEM DETAIL - Bilingual Chinese and English descriptions - Adjustable font size - Unlearned, Learned, and Mastered tracking - Toolbar favorites and solution links when online - Share a long image for notes or study groups - Previous and next problem navigation DAILY QUIZ AND REVIEW - Ten questions per day by difficulty, tag, or company - Today score, best score, and streak - Wrong Book with one-tap return to full problem detail - Reshuffle for extra practice the same day LEARNING TRACKING - Favorites and Recently Viewed lists in Settings - One-tap clear all recents - Stats for favorites, learned rate, and mastered rate WIDGETS (iOS 16 AND LATER) - Daily Problem, Difficulty Glance, Daily Quiz, Favorites, Wrong Book, Learning Progress, Company Spotlight - Lock Screen and StandBy compact layouts; deep-link into the app - On iOS 17 and later: shuffle from Daily Problem and Company Spotlight Home Screen widgets without opening the app - In-app Widget Guide with FAQ PERSONALIZATION - Sixteen accent colors; Light, Dark, or System - Widget backgrounds can match your theme - English, Simplified Chinese, Traditional Chinese, or Follow System - List or grid layout with custom column count SHORTCUTS - Up to four Home Screen quick actions on long-press - Deep links from widgets and shortcuts - iPad and Mac keyboard shortcuts SUPPORT - Rate, email feedback, share the app, tip the developer - More apps from the developer - Optional App Store update reminder OUR PROMISE SINCE YEAR ONE - No ad popups inside the app - Offline problem library - Your time is precious; we respect it Requires iOS 16.0 or later. Download iCoder 8.0 and celebrate eight years of practice with us.