Features & Capabilities

FX Calculus Solver is a Chrome extension that automatically solves calculus problems with animated, step-by-step solutions, graphs, and a built-in calculator. It uses an automatic math solving engine and a user-friendly problem editor to help students learn by example.

Designed for math students preparing exams (ACT, SAT, GRE) and for everyday practice, it offers over 1,000 sample problems, fully animated solution sequences, matrix and equation support, and coverage from College Algebra through Calculus, including limits, differentiation, and integration.

User Growth & Download Statistics

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Euclidus Inc
Apple Apps Store
https://apps.apple.com/ao/app/fx-calculus-problem-solver/id833967111
Website:
http://www.euclidus.com

User Reviews

Users praise FX Calculus Problem Solver for its educational value and efficiency in solving derivatives and integrals across various disciplines. However, they frequently report reliability problems (crashes/freezes), paywall-related frustrations, occasional incorrect results, input limitations, and UI/UX shortcomings. Overall, it can be a strong learning aid when functioning, but stability, access control, and feature gaps significantly hinder consistent use.
Pros
  • Strong educational value: helps students and teachers with calculus concepts, provides practice problems, and helps refresh knowledge.
  • Efficient for computing derivatives and integrals, making it a fast problem-solver for coursework.
  • Widely useful for different disciplines and classes (college calculus, business calculus, engineering tasks).
  • Updates and improvements are appreciated, indicating ongoing refinement.
Cons
  • Crashes/freezes and unstable performance across many versions and problem types.
  • Paywall and post-purchase problems: paying users report errors, limited uses, and even being locked out.
  • Inaccurate or inconsistent results for some problems (wrong answers for differential equations, trigonometric inputs, etc.).
  • Limited input capability and missing features: only a few equations allowed, difficulty inputting complex problems, missing keys like factorial.
  • UI/UX and accessibility issues: keyboard layout quirks, hard-to-see UI, and problems with menus or saving layout.
Recent reviews
I only write reviews when I am impressed with the app. I am extremely impressed with this calculator "plus". Excellent work. One quirk is having to add keys to the keyboard, however, I can deal with that. Thanks!
by Lu*****, 2025-03-15

Great…
by Ro*****, 2022-02-02

Nice it was amazing
by je*****, 2021-02-14
View all user reviews ›

Best FX Calculus Problem Solver Alternatives

Here are some Apple apps that are similar to FX Calculus Problem Solver: