QuantumCalc Pro

You set your own 4-digit code during initial setup. Enter it on the calculator keypad and press '=' to unlock the full OS with AI chat, file manager, and settings.

Press the AC button at any time to instantly hide everything and return to the normal calculator screen. It works from any app - chat, files, or settings. No trace is left on screen.

Every QuantumCalc comes with a free 30-day Pro trial that unlocks all AI profiles and features. After that, the Basic profile remains free forever. Pro and Advanced profiles require an active subscription.

Three profiles with increasing AI capability: Basic (free forever), Pro (smarter, higher daily limit), and Advanced (most powerful, best for complex problems). Switch between them anytime from the sidebar.

Open the AI chat, select the camera option, and snap a photo of any equation, diagram, or handwritten notes. The built-in camera reads the text and numbers automatically - no typing required.

The standard calculator mode works fully offline. AI chat and cloud sync require a WiFi connection. Files stored on the device are always accessible regardless of connectivity.

Connect to WiFi and go to Settings > System > Check Updates. Firmware updates are delivered over-the-air (OTA) and install automatically. The device restarts once the update is complete.

Around 8 hours of active use with AI chat and camera. The display dims and turns off automatically to save power, and after 3 minutes of inactivity the device enters deep sleep - lasting months on a single charge. Charges via USB-C.