Super Calc Pro+ vs HaPi

SuperCalcPro is a powerful all-in-one scientific calculator designed for students, engineers, and anyone who works with numbers every day. KEY FEATURES - Four Calculator Modes Switch instantly between Basic, Scientific, Advanced, and Statistics modes. Swipe left or right to change modes. - Step-by-Step Solutions Tap any result to see how it was calculated - every operation broken down into clear, numbered steps. Perfect for learning and checking your work. - Interactive Math Graphs After a trigonometric calculation, tap Graph to view an animated unit circle showing the exact angle and its sine/cosine values visualised in real time. - Full Scientific Functions sin, cos, tan and their inverses, log, ln, sqrt, cube root, power, pi, e, factorial, absolute value - Advanced Calculus Integrals, derivatives, summation, and limits - all in one keyboard. - Statistics Mode Enter a dataset and instantly compute mean, population std deviation, sample std deviation, nCr, and nPr. - Memory Functions Store and recall values with MC, MR, M+, and M- memory keys. - Calculation History Every calculation is saved automatically. Search, review, and restore any past expression with one tap. - Angle Modes Switch between Degrees, Radians, and Gradians at any time. - Beautiful, Accessible UI Clean dark-friendly design. Dynamic type support. Full VoiceOver accessibility labels. Supports iPhone and iPad. SuperCalcPro is free to use, supported by a small banner ad at the bottom of the screen.

OUR STORY HaPi started with something I have always loved: numbers. I use a calculator all the time, and I have always enjoyed playing with numbers and finding little reasons to make math more fun. One day, I thought: what if a calculator could make people smile too? So I started playing with the idea. A few experiments turned into funny sounds, unexpected reactions, and eventually HaPi. What started as a simple idea to make math a little more fun became something much more entertaining than I expected. Sometimes, even a calculator can have a personality. HOW IT WORKS Pick a theme and start calculating. Every number key shows its own picture, displays its name in your language and plays its own sound. WHAT YOU CAN DO • Add, subtract, multiply, divide and work with percentages • Hear a different sound on every key • See a picture and a name on every number • Watch confetti burst when you press equals • See your full calculation above the result • Switch themes with one tap • Turn sounds on or off at any time • Use HaPi in your own language GREAT FOR Quick daily math, checking a bill, or a little fun with sounds. FREE VERSION • Music and Animals themes • The full calculator with sounds and confetti • No ads of any kind PREMIUM • All Premium themes • Seasonal themes that change through the year • New themes added from time to time Themes are updated from time to time. Some seasonal themes stay for a while and then make room for new ones. You can choose a monthly subscription, a yearly subscription or a one-time Lifetime purchase. This is always your choice. MADE BY AN INDEPENDENT DEVELOPER HaPi is made with care by an independent developer in İzmir, Turkey. WELCOME GIFT Every new user gets 14 days of Premium as a gift. You do not need a card or a subscription. After 14 days, HaPi goes back to the free version automatically. PRIVACY HaPi uses Firebase Analytics and Crashlytics to understand how the app is used and to fix crashes. HaPi does not need an account. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/