The Ultimate Calculator

Feature Set

Web Search: Browse the internet and view search results directly on your calculator, using a nearby smartphone for connectivity.
Cross-Platform Chat: Communicate seamlessly with both Android (5.0+) and iOS devices via the free RXO Chat app.
Local Messaging: Send messages to other Ruby Calculators within 20 meters indoors or 50 meters outdoors.
Global Messaging: Relay messages worldwide by connecting through a nearby smartphone.
PC & Mac Chat: Access RXO Chat via the web app on desktop devices.
File Storage: Store up to 300,000 words across 30 text files with easy access and auto-scrolling.
Scientific Calculator: Perform advanced calculations with six significant figures of accuracy.
Privacy Protection: Enable password protection for message mode to keep your conversations secure.
Message Navigation: Effortlessly scroll through long messages for easy reading.
Extended Character Support: Send, receive, and store a wide range of special characters beyond standard text.
Battery Powered: Runs on AAA alkaline batteries, lasting up to 12 hours of continuous use.
Auto-Scroll Mode: Automatically scroll through stored text files at a user-defined speed.
Emergency Mode: Activate the panic button to instantly revert to standard calculator mode — re-enter the password to unlock full features.