Comparison

CALC Prime vs Calculate84 Plus

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

Head to head
About

CALC Prime

This advanced scientific calculator is designed for professionals and students, offering a wide range of functions, live conversions, and graphing capabilities. It features a history log, customizable themes, and easy expression editing, making complex calculations intuitive and visually appealing.

Highlights
  • Advanced scientific calculation
  • Smart Basic Graphing
  • Live currency and custom conversions
  • History log with aggregate functions
  • Customizable themes and layout
  • Native watchOS app and custom keyboard
Features
Read full description

Used by 10ths of thousands in iPad equipped classrooms, CALC Prime is optimized for productivity on iOS12-17. It's the multi-tasking powerhouse of tools & features you've been seeking. This release was specifically designed for Working Professionals and Classroom Teacher/Student settings. No pup-ups, external links or any end-user stats collection with the exception of the startup tutorial and the UserVoice powered support center. (MDM & AppConfig enabled for EMM systems such as IBM's MaaS360) * 5-Stars Teacher Certified by the #1 Educational App Store ~ https://www.educationalappstore.com * Used by thousands in iPad equipped classrooms ~ https://QApps.co/News Educational institutions can also benefit from a 50% discount via Apple's VPP (Volume Purchase Program). CALC Prime can Calculate, Aggregate and Convert + it has recently introduced Smart Basic Graphing capabilities. One of it's praised features is the ability to share expressions or user-defined functions easily between CALC users. CALC is an intelligent, multi-functional scientific calculator designed to make math look like art. CALC provides 55 pre-set + any number of user-definable Advanced Functions, Live currency and Custom conversions, and the ability to personalize your experience with limitless options of colors, fonts, shapes, sizes and layout arrangements. CALCs external capabilities include a native watchOS app with haptic and conversions, Notification Center Widget and also a Custom Keyboard calculator. CALC has a quick gratuity "approximator" and an on-screen timer to effectively track the remaining minutes and seconds during a test for instance. CALC is really clever. CALC can do live math expressions: From a simple expression like "1+2" to more advanced expressions like "3+(3x9(80+sin(90)))" Advanced calculator. By swiping left and right on CALC, you can easily access over 50+ advanced math functions and also add your own. History log. CALC remembers what you have calculated. Swipe up, and you can see all your previous calculations and perform aggregate functions. Built in converter. Convert your results in 26 common categories, including currency and one extra custom category where you can define your own units and conversions. Colorfull Themes. Limitless lovely themes for you to browse, including optional parallax background image of your choice! Easy access. Tap & Hold a math expression to edit it. Shake your device to undo Tap & Hold a number key for smart parenthesis Tap & Hold the decimal point for RANDOM decimal Tap & Hold the “ans” key for answer history Tap & Hold the “÷” key for 1/x Tap & Hold the “-” key to negate Text style Edit option for Expressions Tapping sound options ..and a lot more!

About

Calculate84 Plus

This app provides advanced scientific and graphing calculator functionality. It allows users to plot multiple functions, perform complex mathematical operations, analyze data with statistics, and manage matrices. An optional subscription unlocks even more features.

Highlights
  • Natural textbook equation input
  • Plot multiple functions with touch controls
  • Advanced math, number, and probability functions
  • 1- and 2- Variable statistics
  • Matrix arithmetic and equation solving
  • Extensive command catalog
Features
Read full description

Graph functions, use advanced math commands for your calculations, create tables, and perform statistics. CALCULATE • Type in equations in natural textbook format • The scientific calculator solves all functions like sin, cos, tan, e, ln, Σ, log, ... • Use MATH, NUM, and PROB functions GRAPH • The graphing calculator lets you plot more than ten functions at once, each with a different color • Touch-enabled graph window • Zoom and trace with your fingers in full-screen • Find intersect, min, max, zero, integral, and derivative STATISTICS • Easily enter lists using the Statistics List Editor • Perform 1- and 2- Variable Stats • Find best-fit lines like LinReg, QuadReg, CubicReg, QuartReg, ExpReg • Work with distributions and regressions TABLE • Analyze X and Y values of your functions MATRIX • Do basic matrix arithmetic operations like +, -, *, or power of a Matrix • Put the matrix into Reduced Row-Echelon form and solve linear equation systems • Calculate the determinant, inversion or transpose the matrix CATALOG • Extensive catalog of all commands with syntax, example, and possible error messages CONTACT Write to us at contact@hypercalc.org --- For extended features such as more advanced calculations and functions, subscribe to HyperCalc. Auto-Renewable Subscription Terms: • Payment will be charged to iTunes Account at confirmation of purchase; • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period; • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal; • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase; • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable; • Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice. Terms of Service: http://www.hypercalc.org/terms.html Privacy Policy: http://www.hypercalc.org/privacy.html

Screenshots

CALC Prime4 screens
Calculate84 Plus4 screens

Verdict

The call

The clearest difference is price: Calculate84 Plus at Free against CALC Prime's $8.99. Calculate84 Plus also leads on ratings volume (305 vs 4) and rating (4.5 vs 4.3). CALC Prime's advantage is in-app purchases (none vs 10) and review sentiment (74% vs 64%). On update cadence, 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

Calculate84 Plus is free to download; CALC Prime costs $8.99 up front. Calculate84 Plus sells 10 in-app purchases, starting at $2.99 per month. CALC Prime asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculate84 Plus holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Calculate84 Plus has 305 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 74% of CALC Prime's written reviews are positive against 64% of Calculate84 Plus's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on August 28, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
CALC Prime versus Calculate84 Plus: the parameters behind the verdict, then further details
ParameterCALC PrimeCalculate84 Plus
Price$8.99Free — better
Rating4.3 (4 ratings)4.5 (305 ratings) — better
Positive reviews73.7% of reviews — better64.0% of reviews
Number of ratings4305 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.513.0 — better
Further details — not scored
Size9 MB33 MB
Age rating4+4+
DeveloperQApps LLCDi Venisco UG (haftungsbeschrankt)

Customer experience

CALC Prime

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews19 reviews
Positive73.7%
Neutral15.8%
Negative10.5%

Calculate84 Plus

All ratings305 ratings
Positive87.2%
Neutral4.3%
Negative8.5%
Written reviews25 reviews
Positive64.0%
Neutral12.0%
Negative24.0%

Bugs and requests

CALC Prime

Not enough reviews yet to summarise bugs or requests.

Calculate84 Plus

Reported bugs

5 issues
  • Domain incorrect in y= table
  • App closes when pulling up table
  • Cannot input negative matrices
  • App freezes during IAP search
  • Cannot drag functions

Requested features

10 requests
  • Dark mode
  • Numeric solver (free)
  • 2nd function
  • Chinese language support
  • Tutorial videos
Show 5 more
  • Settings button (color theme, subscription details)
  • Standard calculator mode
  • Show premium features in description
  • Ability to create programs
  • More TI-84 Plus CE features

In-app purchases

None

CALC Prime

No in-app purchases

10 purchases

Calculate84 Plus

Subscriptions8
  • HyperCalc - Monthly$2.991 Month
  • HyperCalc - Monthly7 Days trial$2.991 Month
  • HyperCalc - Monthly7 Days trial$4.991 Month
Show 5 more
  • HyperCalc - Monthly$4.991 Month
  • HyperCalc - Yearly$14.991 Year
  • HyperCalc - Yearly7 Days trial$14.991 Year
  • HyperCalc - Yearly7 Days trial$19.991 Year
  • HyperCalc - Yearly$19.991 Year
One-time2
  • HyperCalc - Lifetime$29.99
  • HyperCalc - Lifetime$39.99

Questions

Is CALC Prime free?
CALC Prime costs $8.99, with no in-app purchases.
Is Calculate84 Plus free?
Calculate84 Plus is free to download, with in-app purchases available.
Which has better reviews, CALC Prime or Calculate84 Plus?
Calculate84 Plus is rated higher. CALC Prime averages 4.3 out of 5 from 4 ratings, while Calculate84 Plus averages 4.5 from 305 ratings.
Do CALC Prime or Calculate84 Plus have ads?
Neither CALC Prime nor Calculate84 Plus shows ads.
Which is updated more often, CALC Prime or Calculate84 Plus?
CALC Prime ships an update every 2 months, and Calculate84 Plus every 2 months. Most recently, CALC Prime was updated on August 28, 2026 and Calculate84 Plus on October 8, 2026.

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