TI-84 Plus CE · version 2.4.2 · now free

Free TI-84 games in a ninja-fast hub that lives on your calculator.

CalcX is free. Six games, Notes, a Clock and five themes in one app that opens from APPS and survives RAM clears. Snake is free forever, and every other game is free for your first 15 minutes of play.

Get CalcX free All 5 games — $9.99
  • $0to download
  • 15free minutes of every game
  • $2.50to keep a game
TI-84 Plus CE
The CalcX ninja boot intro

Real footage: the high-res CalcX boot intro, recorded from the actual program.

The home screen

Everything one arrow key away.

Big drawn icons, a live clock and battery, a greeting and the date. Pick a game with the arrow keys, press 2nd, and you're in. CLEAR always brings you back.

Tap a theme to see it. You can change it any time in Themes.

CalcX home screen in the Midnight theme

TI-84 Plus CE · colour

Six games. Every screenshot is real.

Snake is free. Every other game is free for 15 minutes of play, then $2.50 to keep. We ran CalcX in an emulator and captured these frames straight from the program.

Calc Royale gameplay

ClipCalc Royale

$2.50

A three-minute tower battle. Spend elixir on Giants, Goblins, Wizards and Arrows, push a lane and take the crown towers before the clock runs out.

  • Deck editor
  • 3 bot levels
  • Trophies
Merge gameplay

ClipMerge

$2.50

Drop fruit, match two of a kind and they fuse into something bigger. Rebuilt in 2.2 with faster physics, so a full box stays smooth and fruit never sinks into the walls.

  • New physics
  • Best score saved
Snake gameplay

ClipSnake

Free

The classic, tuned for the arrow pad. Three speeds and a saved best score.

Flappy gameplay with green pipes

Flappy

$2.50

Tap 2nd to flap through the pipes. Easy to learn, hard to put down.

Chess board after the first move

Chess

$2.50

Play the bot at three levels, or a friend on the same calculator. Undo included.

Tic Tac Toe mid-game

Tic Tac Toe

$2.50

Easy bot, an unbeatable bot, or two players. Keeps score across rounds.

Best value All 5 paid games for $9.99Calc Royale, Merge, Flappy, Chess and Tic Tac Toe. That's $12.50 bought one by one. $12.50 $9.99 See the bundle

Free with CalcX, forever

Snake plus all of these. No code needed.

Notes list screen
Notes Ten quick notes, saved on the calculator.
Big clock screen
Clock Big clock, and set the real date and time.
Apps list showing programs
Apps See every program on your calculator, BASIC or ASM, at a glance.
Themes picker
Themes Five looks with a live preview.
TI-84 Plus
CalcX Lite menu

TI-84 Plus · black and white

CalcX Lite, for the classic TI-84 Plus.

Got the older monochrome model? CalcX Lite brings Snake, Flappy and Tic Tac Toe in a tiny Flash app. It's a free download: Snake is free forever, and Flappy and Tic Tac Toe are free for 15 minutes, then $2.50 to unlock both.

  • Snake free, Flappy and Tic Tac Toe with a 15-minute free trial
  • Opens from the APPS menu like a built-in app
  • Lives in Archive, so a RAM clear won't delete it
  • A one-time unlock made for your calculator, then never again
  • Works on the TI-84 Plus and TI-84 Plus Silver Edition
Get CalcX Lite free

Free trial

Download free, try everything, keep what you like.

Each code is made for one calculator and saved in your free CalcX account, so you can always get it back.

  1. 1

    Find your Calculator ID

    On the CE, press 2nd MEM (the + key) and choose 1: About. Your ID is the ID line, like 13010-B3224. CalcX also shows it on its activation screen.

  2. 2

    Add it and download

    Make a free account and add your calculator with its ID. The install files are free, and you can get a free 15-minute trial code for all the games.

  3. 3

    Play, then keep your favourites

    Only real play time counts toward the 15 minutes. When it's up, unlock games for $2.50 each (or all 5 for $9.99) and type your unlock code once. It survives RAM clears.

CalcX activation screen showing the calculator ID and code entry
The activation screen shows your ID right on the calculator.

Pricing

Free to start. Pay only for the games you keep.

Prices in Canadian dollars. Secure checkout by Stripe. Everything you buy is saved to your account.

CalcX

Free

TI-84 Plus CE

  • Snake, free forever
  • Home screen, ninja intro, 5 themes
  • Notes, Clock, Apps list
  • 15 free minutes of every other game
Get CalcX free
Best value

All 5 games

$9.99 $12.50

TI-84 Plus CE

  • Calc Royale, Merge, Flappy, Chess, Tic Tac Toe
  • One code unlocks the lot
  • Under $2 a game
  • Save $2.51
Get all 5 games

Single game

$2.50 each

Try it free first

See game

CalcX Lite

Free

TI-84 Plus (monochrome)

  • Snake free forever
  • Flappy and Tic Tac Toe: 15 free minutes
  • $2.50 unlocks both for good
See CalcX Lite

Install

Up and running in five minutes.

You'll need a USB cable and the free TI Connect CE app from Texas Instruments. The files are a free download from your account.

CE TI-84 Plus CE

  1. Your CE needs arTIfiCE to run C programs, plus the CE C libraries (clibs.8xg). Send the newest clibs even if you already have an older copy.
  2. Send CXSETUP.8xp, CXAPP.0.8xv and CXAPP.1.8xv with TI Connect CE.
  3. Run CXSETUP once the same way you open arTIfiCE. It installs CalcX as an app.
  4. Press APPS and choose CalcX. Snake is free; pick any other game and type your free trial code to try it.

Prefer Cesium? There's also a program version, CALCX.8xp, in the download.

B&W TI-84 Plus

  1. Send CalcX.8xk with TI Connect CE. Apps go into storage by themselves.
  2. Press APPS, choose CalcX and press ENTER.
  3. The start screen shows a 6-digit request code. Type it into your CalcX account to get your free trial code (or your unlock code after you buy), then type that on the calculator. Press 2nd to play Snake any time.

If you see Need 3K free RAM, archive or delete a few programs and launch again.

FAQ

Questions, answered.

Will a RAM clear delete CalcX?

No. On both models CalcX lives in storage (Archive), and your unlock is saved there too. After a RAM clear it's still in the APPS menu, already unlocked.

Is this allowed on tests?

Always follow your teacher's and exam rules. Many exams use Press-to-Test mode, which switches off apps and games like CalcX until the test is over.

I reset my calculator. How do I get CalcX back?

Sign in to your account. Each calculator shows what's on it, its activation code and the files to reinstall. Send the files, open CalcX and type the same code.

Can I use my code on a friend's calculator?

Codes are made for one calculator, so they only work on that calculator. Your friend can download CalcX free and get their own trial.

How does the free trial work?

Every calculator gets one free trial code from its CalcX account: 15 minutes of play across all the paid games, used within a week. Only real play time counts, and the timer pauses when you stop pressing keys. Snake and the CalcX tools stay free after the trial ends.

Which calculators work?

CalcX 2.4 is for the colour TI-84 Plus CE. CalcX Lite is for the black-and-white TI-84 Plus and TI-84 Plus Silver Edition. Not sure which you have? The CE is the thin one with a colour screen and a rechargeable battery.

Do I need Cesium or CalcPlex?

Not to play. Once CalcX is installed as an app it opens from APPS. Keep arTIfiCE around for installing updates.

How do I update?

Delete the old CalcX app (2nd MEM → 2 → Apps → CalcX → DEL), send the new files and run CXSETUP. Your code, settings and best scores stay.

Can I skip the intro?

Press any key to skip it, or turn it off in Settings → Boot intro.