Independent Educational Project: Calc84 is developed by Miqdad Qaisrani as a free TI-84 Plus CE alternative. TI-84 is a trademark of Texas Instruments Inc. We are not affiliated with TI.
Developer: Miqdad Qaisrani – Creator of Calc84
Indie Math Tools Developer
Indie Math Tools Developer
Contact methods:
Use the form below to open a pre-filled email, or write to us directly at support@calc84.app
How can we help you?
We are here to help with Calc84. Whether you found a bug, have a feature request, or need help with calculations, we'd love to hear from you.
- Found a bug in the graphing engine or matrix solver?
- Need help with TI-BASIC programming?
- Have a feature suggestion for statistics?
- General inquiries for Miqdad Qaisrani.
✉️ Email support@calc84.app — we usually reply within a few business days.
Frequently asked questions
Is Calc84 really free? How do you keep it running? +
Yes, the core calculator is free. Calc84 is an independent educational project and is supported by non‑intrusive advertising (Google AdSense). The full mathematical toolset stays free for students and teachers, and the ads have no access to the math you type in. No paywalls, ever.
Does it work offline? +
Yes, for most tools. Once loaded or installed as a PWA (Progressive Web App), Calc84's core calculator, graphing, matrix, and programming tools run offline. A few tools need a one-time connection to load their math engine. The AI Math Tutor requires an internet connection.
Is this an official TI-84 calculator? +
No. Calc84 is an independent educational alternative created by Miqdad Qaisrani. TI-84 Plus CE is a registered trademark of Texas Instruments Incorporated. We are not affiliated with, endorsed by, or sponsored by Texas Instruments. Calc84 is designed to provide similar functionality for students who cannot access physical hardware.
Can I save my work? +
Yes. Your calculation history, variables (A-Z, ?), lists (L1-L6), matrices, and TI-BASIC programs are automatically saved to your browser's local storage. They persist between sessions and are private to your device — we never see your data.
How do I install it on my phone? +
iOS (Safari): Tap the "Share" button and select "Add to Home Screen".
Android (Chrome): Tap the menu icon (⋮) and select "Install App" or "Add to Home Screen".
Desktop: Click the install icon in your browser's address bar.
Once installed, it works like a native app with offline access.
Android (Chrome): Tap the menu icon (⋮) and select "Install App" or "Add to Home Screen".
Desktop: Click the install icon in your browser's address bar.
Once installed, it works like a native app with offline access.
