World’s #1 Free Online TI-84 Plus CE Graphing Calculator | 2025
We Reply to Every Message Personally – Usually Within 12 Hours
Whether you found a small bug, want a new feature, have an exam-related question, or just want to say thank you — we read and reply to every single email ourselves.
No bots. No auto-replies. Real humans who love math and care about students.
Email us anytime: Support@ti84calculates.com
That’s the only address you’ll ever need. We check it multiple times a day, seven days a week.
Why Thousands of Students Email Us Every Month
- “My graph looked slightly different from my real TI-84” → We fix it in hours
- “Can you add fraction mode / exam mode / more colors?” → Already in the pipeline!
- “Is this allowed in SAT/ACT/IB/AP?” → Great for practice, not for actual exams
- “Thank you – I passed my finals because of your site” → These are our favourite ❤️
In 2025 alone we have already answered more than 42,000 student emails — and we plan to keep that number growing.
Average Response Time (Real Data 2025)
- Weekdays: 4–12 hours
- Weekends: 8–24 hours
- Fastest reply ever: 6 minutes (yes, someone emailed at 3 AM and we were awake fixing a bug!)
What We Love to Hear From You About
- Calculation accuracy issues (send steps/screenshot – we’ll match real TI-84 100%)
- Feature requests (exam mode, offline app, new themes, etc.)
- School/institute bulk usage or projector-friendly version
- Media, YouTube, or blog collaboration
- Just a simple “thank you” (seriously, these make our day)
Social Media (We’re Very Active)
- Instagram & TikTok: @ti84calculates
- YouTube: Search “TI84Calculates” for tutorials
- Coming 2026: Official Discord community
Our Promise to You
- We will never ignore your email
- We will never ask you to sign up or pay
- We will never put ads over the calculator buttons
- We will keep making it faster and more accurate every month
- We will stay 100% free forever
Because this website only exists because of students like you all over the world — USA, UK, India, Nigeria, Philippines, Indonesia, Brazil, Saudi Arabia, South Africa, and 180+ other countries.
One Last Thing
Don’t hesitate to email even if it feels like a “small” issue. Every message helps us make the calculator better for millions of students.
So go ahead — hit reply or send a new mail right now: Support@ti84calculates.com
We’re waiting to hear from you.
Thank you for making TI84Calculates.com the most loved free graphing calculator on the planet.
— The TI84Calculates Team Last Updated: December 2025