Comparison

GraphNCalc83 vs Photomath

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

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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.

About

Photomath

Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.

Highlights
  • Scan math problems
  • Step-by-step explanations
  • Word problem solver
  • Interactive graphs
  • Multiple solution methods
  • Scientific calculator
Read full description

Photomath is known worldwide for helping millions of learners to learn, practice, and understand math – one step at a time. Scan any math problem with the Photomath app to get step-by-step explanations with accurate solutions and a variety of teacher-approved methods. Math is about the process, so Photomath breaks your problem into bite-sized steps to help you understand the “what” and “why” along with the “how.” Whether you’re learning basic arithmetic or advanced geometry, we’ll tackle it together, step by step. Why Photomath? Billions of math problems: From elementary arithmetic to advanced calculus and everything in between, Photomath can solve billions of math problems—including word problems! Whether handwritten, in a textbook, or on a screen, Photomath is here to help you untangle your trickiest problem. Step-by-step explanations: Math isn’t just about an answer. It’s about every step along the way. That’s why Photomath breaks down each step, so you can *really* learn. Less guesswork = less stress, especially with our new Animated Steps, which show you the exact progression of a particular step. Get basic step-by-step explanations at no charge when you download Photomath. Expert-developed methods: Photomath’s educational content is centered around the learner’s experience, driven by the expertise of our own team of mathematicians and former math teachers. Self-paced learning: Photomath’s instant support is like having a 24/7 virtual tutor. Checking your homework before dinner? Stuck on a problem at 2am? We can help. Follow our detailed steps, taking whatever time you need to review definitions, rationale, and more – all within the explanation. Want to dive deeper and explore more ways to learn? Photomath Plus can get you there with custom Animated Tutorials, detailed Textbook Solutions, and more! KEY FEATURES • Step-by-step explanations included in our basic version (at no charge) • Word problem instructions • Interactive graphs • Video learning • Multiple solution methods • Advanced scientific calculator Photomath is for learners of all levels, including those studying: Numbers & Quantity Algebra Functions Trigonometry & Angles Sequences Geometry Calculus “The step-by-step guide is beneficial to students that do not have access to a tutor and struggle with solving math problems.” — Forbes “A viral video about a new app looks like a dream come true for anyone who struggles with math.” — Time ___________________________________________ • Payment will be charged to your Apple ID account at the confirmation of purchase. • A subscription automatically renews unless it’s canceled at least 24 hours before the end of the current billing period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • Manage or cancel your subscription in your account settings on the App Store after purchase. • Offers and pricing are subject to change without notice. Suggestions or questions? Email us at support@photomath.com Website: www.photomath.com TikTok: @photomath Instagram: @photomath Facebook: @Photomathapp Twitter: @Photomath Terms of Use: https://photomath.app/en/termsofuse Privacy Policy: https://photomath.app/en/privacypolicy

Screenshots

GraphNCalc834 screens
Photomath4 screens

Verdict

The call

GraphNCalc83 and Photomath both sit at 4.9 stars, but that hides the real split: 98% of GraphNCalc83's written reviews are positive against 51% of Photomath's. GraphNCalc83 also leads on in-app purchases (none vs 14). Photomath's advantage is price (Free vs $12.99) and ratings volume (733K vs 4K). On rating, ads, chart position 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

Photomath is free to download; GraphNCalc83 costs $12.99 up front. Photomath sells 9 in-app purchases, starting at $5.99 per month. GraphNCalc83 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for GraphNCalc83 against 4.8 for Photomath. That said, the two scores are not equally well evidenced: Photomath has 733K ratings behind it against 4K, so its average is the more settled of the two. Written reviews are what separate them: 98% of GraphNCalc83's written reviews are positive against 51% of Photomath's.

UpkeepUpdate frequency

GraphNCalc83 ships an update every 5 months, Photomath monthly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 5 level
GraphNCalc83 versus Photomath: the parameters behind the verdict, then further details
ParameterGraphNCalc83Photomath
Price$12.99Free — better
Rating4.9 (4K ratings) — better4.8 (733K ratings)
Positive reviews98.1% of reviews — better51.1% of reviews
Number of ratings4K733K — better
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#27 — better#37
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.614.0 — better
Further details — not scored
Size10 MB30 MB
Age rating4+4+
DeveloperErnest BrockGoogle

Customer experience

GraphNCalc83

All ratings4,033 ratings
Positive97.4%
Neutral1.1%
Negative1.5%
Written reviews270 reviews
Positive98.1%
Neutral1.1%
Negative0.7%

Photomath

All ratings732,942 ratings
Positive95.3%
Neutral2.0%
Negative2.7%
Written reviews1,186 reviews
Positive51.1%
Neutral6.9%
Negative42.0%

User reviews

GraphNCalc83

From 4K App Store ratings

What we love

  • 👍 Familiar TI-83/84 calculator interface
  • 🚀 Powerful and feature-rich
  • 💡 Touchscreen enhancements like zooming and tracing
  • 👍 Convenient to have a graphing calculator on your phone
  • 👍 Frequent updates and great developer support

Room to improve

  • 🐛 Occasional issues with graph rendering and zooming
  • ⚠️ Not allowed to use on tests/exams like physical calculators

Photomath

From 733K App Store ratings

What we love

  • 🚀 Helpful for homework and understanding concepts
  • 👍 Provides step-by-step solutions and explanations
  • 🤖 Accurate and reliable for solving equations
  • 💡 Useful for checking work and learning from mistakes

Room to improve

  • 💰 Paywall for accessing step-by-step explanations
  • 🔒 Concerns about using the app to cheat
  • 🐛 Camera focusing issues and inability to solve certain problem types
  • 💸 Expensive monthly subscription fee

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)

Photomath

Reported bugs

2 issues
  • Incorrect answers or solutions provided for some problems
  • Compatibility issues with newer devices or operating systems

Requested features

3 requests
  • Support for word problems and more advanced math concepts
  • Option to use front-facing camera for scanning
  • Cheaper or one-time payment model instead of subscription

In-app purchases

None

GraphNCalc83

No in-app purchases

9 purchases

Photomath

Subscriptions9
  • Photomath Plus7 Days trial$5.991 Month
  • Photomath Plus7 Days trial$7.991 Month
  • Photomath Plus7 Days trial5 variants$9.991 Month
Show 6 more
  • Photomath Plus2 variants$9.991 Month
  • Photomath Plus14 Days trial$9.991 Month
  • Photomath Plus7 Days trial$29.991 Year
  • Photomath Plus7 Days trial$39.991 Year
  • Photomath Plus7 Days trial$49.996 Months
  • Photomath Plus7 Days trial$69.991 Year

Questions

Is GraphNCalc83 free?
GraphNCalc83 costs $12.99, with no in-app purchases.
Is Photomath free?
Photomath is free to download, with in-app purchases available.
Which has better reviews, GraphNCalc83 or Photomath?
GraphNCalc83 is rated higher. GraphNCalc83 averages 4.9 out of 5 from 4K ratings, while Photomath averages 4.8 from 733K ratings.
Do GraphNCalc83 or Photomath have ads?
Neither GraphNCalc83 nor Photomath shows ads.
Which is updated more often, GraphNCalc83 or Photomath?
GraphNCalc83 ships an update every 5 months, and Photomath monthly. Most recently, GraphNCalc83 was updated on September 22, 2026 and Photomath on September 24, 2026.
Which is more popular, GraphNCalc83 or Photomath?
GraphNCalc83 currently peaks at #27 in the App Store charts, and Photomath at #37. Chart position reflects recent download velocity rather than total install base.

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