Comparison

CASIO fx vs FE Exam Prep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CASIO fx

This app provides advanced mathematical and scientific calculation tools, including graphing and a computer algebra system. It offers a user interface similar to the handheld fx-CG500, with access to various applications like eActivity, Spreadsheet, Geometry, and Physium. It's designed to enhance learning for both new and experienced users.

Highlights
  • Complex calculations
  • Graph drawing
  • Computer Algebra System (CAS)
  • eActivity for worksheets
  • Spreadsheet with statistical analysis
  • Geometry with animations
  • Physium periodic table and constants
Features
Read full description

●App Overview fx-CG500 comes equipped to perform complex calculations, draw graphs, and to use a computer algebra system (CAS) to investigate mathematics and solve problems. It has a user interface in the style of the handheld fx-CG500, a tool used in classrooms worldwide. This app will be beneficial for both new and experienced fx-CG500 users. fx-CG500 in combination with the free activities available from CASIO can help to take your study of mathematics to the next level. ●Trial Version vs Monthly Subscription Version After you register for a fx-CG500 Subscription, you will be provided access to a variety of different apps and functions that are essential for math and natural science learning and calculation. ・Applications You get access to a selection of more than 10 new apps that allow you to perform calculations using dynamic visual representations of math and natural science concepts. Four typical applications, each of which is essential for math and natural science learning and calculations, are described below. -eActivity eActivity lets you input math expressions and textual explanations in files that can then be used as worksheets. -Spreadsheet In addition to standard spreadsheet calculations, this app also provides statistical chart analysis and statistical calculation capabilities. -Geometry Geometry makes it possible for students to grasp relationships between figures using number tables and animations. -Physium Physium provides access to a periodic table and scientific constants for calculations. ・Functions You get additional access to more than 300 middle and higher grade math functions, including calculus, complex numbers, probability distribution, and more. ●Monthly Subscription ・Subscription Fee and Period A subscription costs $1.99 per month (calculated from your date of purchase), automatically renewed each month until you cancel your subscription. Billing is through your iTunes account. ・Automatic Renewal Details Subscriptions are renewed automatically as long as the subscriber does not cancel the subscription at least 24 hours before the end of the current subscription period. Billing for an automatically renewed subscription will be performed within 24 hours after the auto renewal. ・Checking Your Current Subscription Status and Canceling a Subscription (by Stopping Auto Renewal) You can check your current subscription status by navigating to the applicable page as shown below. [Settings > iTunes & App Store > Tap your Apple ID. > View Apple ID > Subscriptions] On the page that appears, you can check your next auto renewal date, and cancel or reconfigure your auto renewal. *You can also use iTunes to check your next auto renewal date, and cancel or reconfigure your auto renewal. ・Partial Month Cancellation Cancellation of a subscription partway through a month is not allowed. ・Terms of use http://edu.casio.com/software_app/app/termsofuse/en.html ・Privacy Policy http://world.casio.com/privacy/

About

FE Exam Prep

Features
Read full description

Prepare for the NCEES Fundamentals of Engineering (FE) exam across all seven discipline exams — Civil, Mechanical, Electrical & Computer, Chemical, Environmental, Industrial & Systems, and Other Disciplines. FE Exam Prep gives you a deep, varied bank of original practice problems in every knowledge area, each with a clear step-by-step worked solution. Because problems are generated fresh with new values every time, you can drill a topic until it truly sticks — and every answer is computed, so it's always correct. WHAT'S INSIDE • All seven FE disciplines, organized by knowledge area • Hundreds of practice problems per topic, with worked solutions • Easy, medium, and hard levels — ramp up to genuine multi-step exam problems • Full-length, timed mock exams weighted like the real 110-question exam, with a pass-readiness estimate • A searchable, discipline-filterable formula reference, beautifully typeset • Progress tracking: readiness, weak areas, answer speed, and study streaks • Smart practice that targets your weak spots and spaces out review PRIVATE BY DESIGN • No ads, ever • No accounts, no sign-ups • No data collected — your progress stays on your device • Works completely offline FE Exam Prep is an independent study aid. It is not affiliated with, authorized, or endorsed by NCEES, and it does not use actual exam questions — every problem and formula is original. On exam day you'll use the official NCEES FE Reference Handbook.

Screenshots

CASIO fx4 screens
FE Exam Prep4 screens

Verdict

The call

The clearest difference is price: CASIO fx at Free against FE Exam Prep's $24.99. CASIO fx also leads on iOS requirement (12.0 vs 17.0). FE Exam Prep's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 6 months). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

CASIO fx is free to download; FE Exam Prep costs $24.99 up front. CASIO fx sells 1 in-app purchase, starting at $1.99 per month. FE Exam Prep asks for nothing beyond the download.

UpkeepUpdate frequency

CASIO fx ships an update every 6 months, FE Exam Prep every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
CASIO fx versus FE Exam Prep: the parameters behind the verdict, then further details
ParameterCASIO fxFE Exam Prep
PriceFree — better$24.99
Rating2.7 (9 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings9 — better—
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size54 MB10 MB
Age rating4+4+
DeveloperCASIO COMPUTER CO., LTD.Kathryn Halterman

In-app purchases

1 purchases

CASIO fx

Subscriptions1
  • fx-CG500 1 Month Subscription$1.991 Month
None

FE Exam Prep

No in-app purchases

Questions

Is CASIO fx free?
CASIO fx is free to download, with in-app purchases available.
Is FE Exam Prep free?
FE Exam Prep costs $24.99, with no in-app purchases.
Do CASIO fx or FE Exam Prep have ads?
Neither CASIO fx nor FE Exam Prep shows ads.
Which is updated more often, CASIO fx or FE Exam Prep?
CASIO fx ships an update every 6 months, and FE Exam Prep every 2 months. Most recently, CASIO fx was updated on November 5, 2026 and FE Exam Prep on October 31, 2026.

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