GraphNCalc83 vs CALC Prime
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GraphNCalc83
This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.
- Touch-based graphing and editing
- Natural textbook notation input
- Advanced math and statistical functions
- Parametric, polar, and f(x,y) equation graphing
- BASIC programming with fast execution
- Unit converter and physical constants
- Interactive periodic table
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GraphNCalc83 uses touch, color and blazing speed to handle your math problems. The familiar calculator keyboard, arrow keys and functions are enhanced with full touch input for all graphs, editors and menus. Enter calculations in natural textbook format. Enter fractions and view result as fractions. Trace graphs with your finger. Zoom in and out with a pinch. Explore regressions with a tap on the screen. Scroll through the list, matrix and calculation history with a swipe. Tap the ? key for help. Written using the latest 64 bit math libraries, GraphNCalc83 harnesses the amazing computing resources of the iPhone and iPad to provide a colorful, fast and fluid experience. Graphs scroll, glide and zoom smoothly. Matrix, statistics and BASIC programs run 500x times faster than traditional calculators. GraphNCalc83 includes: Algebraic entry: Enter problems using full algebraic textbook notation. The command line editor includes interactive parenthesis matching and high lighting, undo and redo, bubble function help and a 200 level calculation history and recall stack. Generate a PDF report of calculations for mailing or printing using the SEND function. Math functions: Trigonometry, logarithms, function minimum, maximum, numeric integration and derivatives, general solver, real and imaginary numbers, combination, permutation, random number generation, normal, T, chi squared, Fisher, poisson and geometric distributions, binary shift and rotate, test and logic operations, list operations including sort, std. deviation, sum, sequence, matrix determinant, transpose, sum, ref, rref, addition, multiplication. Graph functions, parametric, f(x,y) and polar equations and statistics plots: Full color graphs with touch to trace, pinch zoom, function minimum, maximum, intersections, asymptotes and numeric integration. Output graphs in high resolution PDF format for mailing or printing. Interactively explore function behavior using variables tied to slider bars. Statistics, Inferential Statistics and Distributions: A set of inferential statistics worksheets and graphs of distributions are included. The regression analysis screen allows you to quickly compute, view and analyze a data set using a variety of curve fitting methods. Table: Analyze functions using the table viewer. Use the split screen mode to simultaneously view a graph and table. Matrix and Lists: Matrix and list editors and a full set of matrix and list operations are built in. Unit Converter and Constants: Convert between a wide variety of scientific, engineering and common units. A large set of physical constants are also included. BASIC programming: Create, edit, debug and run BASIC programs. Programs run more than 500 times faster than traditional calculators. Import and execute .83p and .8xp files. Chemistry: The calculator includes a full featured periodic table, a mass calculator and a data base of element properties. The touch interface allows you to view and interact with the periodic table to view by series, state, melting point, boiling point, electronegativity, electron affinity, valence, ionization, radius, hardness, modulus, density, conductivity, heat and year discovered. Geometry: The geometry application computes perimeter and area for a variety of 2d geometric figures including squares, rectangles, parallelograms, triangles, polygons, circles, arcs and ellipses. A full triangle solver and interactive unit circle grapher are built in. Solve line intersections, project a point to a line and find a circle given 3 points. Finance: Compute time value of money problems including annuities, lump sums and uneven cash flow analysis with IRR and NPV Built-in user guide: A user guide is included and is a touch away using the ? key or ⓘ on any menu. All functions have a full manual page with description of arguments and examples of use. Pop up bubble help displays function arguments during problem entry and program editing.
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.
- 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
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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!
Screenshots
Verdict
The clearest difference is rating: GraphNCalc83 at 4.9 against CALC Prime's 4.3. GraphNCalc83 also leads on ratings volume (4K vs 4) and review sentiment (98% vs 74%). CALC Prime's advantage is price ($8.99 vs $12.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases, monetization model 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
GraphNCalc83 costs $12.99 and CALC Prime $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GraphNCalc83 holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: GraphNCalc83 has 4K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 98% of GraphNCalc83's written reviews are positive against 74% of CALC Prime's.
GraphNCalc83 ships an update every 5 months, CALC Prime every 2 months. The most recent releases landed on October 17, 2026 and August 28, 2026 respectively.
| Parameter | GraphNCalc83 | CALC Prime |
|---|---|---|
| Price | $12.99 | $8.99 — better |
| Rating | 4.9 (4K ratings) — better | 4.3 (4 ratings) |
| Positive reviews | 98.2% of reviews — better | 73.7% of reviews |
| Number of ratings | 4K — better | 4 |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #93 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 10 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Ernest Brock | QApps LLC |
Customer experience
GraphNCalc83
CALC Prime
Bugs and requests
GraphNCalc83
Reported bugs
2 issues- Occasional crashes or freezes
- Inconsistent behavior when scrolling through calculation history
Requested features
3 requests- Dark mode or customizable themes
- More advanced programming and scripting capabilities
- Support for additional calculator models (e.g., TI-89)
CALC Prime
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GraphNCalc83
No in-app purchases
CALC Prime
No in-app purchases
Questions
Is GraphNCalc83 free?
Is CALC Prime free?
Which has better reviews, GraphNCalc83 or CALC Prime?
Do GraphNCalc83 or CALC Prime have ads?
Which is updated more often, GraphNCalc83 or CALC Prime?
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