Answers before you checkout.
Common questions about GhostCalc builds, mail-in modifications, compatibility, shipping, and support.
What is GhostCalc?
GhostCalc is a hardware upgrade for compatible TI-84 Plus calculators that adds AI chat, solving, notes, and related tools while preserving the normal calculator experience.
Which build should I choose?
Standard is the core hidden AI mod. Vision Pro adds camera capture for visual workflows. Vision Pro 5MP is the highest-end camera build.
Can I send in my own calculator?
Yes. Choose "Modify mine" at checkout to send in your compatible TI-84 Plus and save on the build. GhostCalc will provide mail-in instructions.
How long does it take?
Most builds take 5-7 business days before carrier transit begins. Mail-in modifications start after your calculator arrives and is inspected.
Does normal calculator use still work?
Yes. The goal is to keep the regular calculator experience intact while adding the hidden GhostCalc layer.
Is GhostCalc affiliated with TI or OpenAI?
No. GhostCalc is not affiliated with Texas Instruments or OpenAI.
Where do I get help after delivery?
Use Discord or email orders@ghostcalc.org for setup, troubleshooting, firmware, and order questions.