Calculate84 Plus 4+

Intended for use with TI-84

Graphing Calculator Apps UG (haftungsbeschrankt)

Designed for iPad

    • 4.5 • 287 Ratings
    • Free
    • Offers In-App Purchases



Graph functions, use advanced math commands for your calculations, create tables, and perform statistics.

• 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

• 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

• 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

• Analyze X and Y values of your functions

• 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

• Extensive catalog of all commands with syntax, example, and possible error messages

Write to us at

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:

Privacy Policy:

What’s New

Version 1.1.3

+ Performance Improvements
+ 1000s separator
+ Bug fixes

Ratings and Reviews

4.5 out of 5
287 Ratings

287 Ratings

ZZClownFrownCrown ,

Review, and I paid for this

I’m leaving this review because of a glitch and so you see it; your calculator does not allow people to input negative matrices. Like, you can’t input “-2” or anything as a value. Thank you. Please fix this and any other glitches ASAP.

Developer Response ,

Thanks for your feedback.
To enter negative values to a matrix, make sure to use the negation key "(-)". The normal "-" key won't work here.

AppleUser331 ,

Ok, but it could have more features

I think that this calculator could have more features, such as creating programs, and all the other features the TI-84 Plus CE has which this app doesn’t. I wanted a reliable replacement to the actual calculator on my phone, and this is one of the closest I could find, unfortunately it does not have all the features of the real TI calculator. Also, I think a one-time purchase would be better than a yearly subscription to the app.

Jason39903 ,

Great app, but make the Pro version a one time purchase!

Great and unique design, but a one time purchase would be much more favorable to most users versus a yearly subscription! Thanks for taking the time to make the app

App Privacy

The developer, Graphing Calculator Apps UG (haftungsbeschrankt), indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

TI 84 Graphing Calculator Man.
Graphing Calculator Pro²
TI-84 CE Calculator Manual
TI Nspire Calculator Manual
Pocket Square Folds
CatMoji - Cat Emoji Stickers

You Might Also Like

Ncalc - Graphing Calculator 84
Class Calc Graphing Calculator
Taculator Graphing Calculator
PocketCAS lite for Mathematics
Graphing Calculator Plus