Sharp & fast graphing
Remember when your calculator drew the graph pixel by pixel for thirty seconds? Those days are over. Taculator 84 renders graphs instantly — clean, sharp, and ready for screenshots.
The graphing calculator for students
The 84 graphing calculator. Right on your phone.
A graphing calculator intended for use with the TI-84 Evo and TI-84 Plus CE. Overhauled 2026 menus and MathPrint input, same keypad logic you learned in class, on the phone you already carry. An easy replacement for homework and studying when a physical TI-84 Evo, Plus CE or Casio handheld is not nearby. No ads. Independent app, not affiliated with Texas Instruments.
Also on Mac · Free to download · No ads
Forgot your calculator? · App vs. handheld · The best 84 apps, compared
Classic graphing power 100+ commands Works offline ACT · SAT · AP prep iOS · Android · Mac Free for schools 14 keyboard themes No ads
Affordable graphing calculator
A full-featured calculator that fits in any pocket.
Get every command you need for high school and college — without the $150 hardware.
Familiar keyboard, modern syntax
Intended for use with the TI-84 Evo and TI-84 Plus CE — y=, mode, stats, math. Overhauled 2026 menus and MathPrint input, so class keystrokes still make sense on the phone. No ads.
High school & college
Pre-Algebra, Algebra 1 & 2, Pre-Calculus, Calculus, Statistics, Matrices — everything that's on the curriculum, plus everything that's on the test.
Wondering how it stacks up against Calculate84, Wabbitemu or Desmos? Taculator 84 has no ads in any tier; Calculate84 shows ads in its free personal tier. See the full comparison →
See it in action
Everything you need for class.
Graphing, textbook-style equations and MathPrint — three of the screens you'll use most.
Why Taculator 84
Skip the $150 calculator. Keep the muscle memory.
The same calculator layout you trained on — modes, menus, shift-alpha shortcuts — running on hardware that's 50× faster and already in your pocket. Available wherever you study.
- 100+ commands, exactly where you expect them
- 50× faster than a physical calculator — instant graphs
- Works offline — for ACT, SAT and AP prep
- 14 themes incl. Gold, Plum, Rose
- Synced across iPhone, iPad, Mac & Android
12,000+ ratings
4.5 average · App Store & Google Play, worldwide
From AP students to college freshmen — Taculator 84 is the calculator they reach for first.
Trusted by teachers & students at
Make it yours
Your calculator. Your color.
Taculator 84 comes in 14 keyboard themes — tap one and watch the keypad change, exactly like in the app. No other 84-style app does that: see the comparison.
Classic · Original
In print
Our guidebooks.
Printed, classroom-proven, and written by the makers of Taculator: one guidebook for the TI-84 Plus CE handheld, one for the brand-new TI-84 Evo, and one for the classic TI-84 Plus. Every book follows the same recipe: short explanations, images of the real keys, and step-by-step keystroke sequences.
TI-84 Plus CE Guidebook
The complete guide to the TI-84 Plus CE handheld, including the Python edition — graphing, calculus, statistics and the preinstalled apps, for high school and college.
TI-84 Evo Guidebook
Brand new for the TI-84 Evo: from the home screen and its apps to graphing, calculus, statistics and Python. Every screenshot taken on the real Evo.
TI-84 Plus Manual & Guide Book
The same step-by-step approach for the classic TI-84 Plus with the black-and-white display — with exactly the right screenshots and keys for the older handhelds.
FREE FOR SCHOOLS
Educational institutions
A graphing calculator for the whole classroom. Free.
Schools, districts and tutoring programs get Taculator 84 completely free through Apple Custom Apps — no ads, no subscriptions, no per-seat price. Request access with your Apple Organization ID and deploy over MDM.
