Privacy shouldn't be complicated.

When you message another Quantum Fox user, the app can identify compatible users through a separate verification service rather than sending confusing technical codes through SMS. Once the supported secure session is established, message content can be end-to-end encrypted behind the scenes.

Ordinary carrier SMS is not inherently end-to-end encrypted. The initial exchange and any fallback messages should not be assumed to have the same protections as an established encrypted channel.

Start from the Quantum Fox interface. Someone without the app receives an SMS link, opens it in a browser and enters a password if the sender required one. Browser messaging and voice/video calling are designed to use end-to-end encrypted sessions.

The recipient still needs to open the link; this is not yet an ordinary incoming cellular phone call. Direct cellular calling is planned for a future version.

Quantum Fox provides a dedicated secure-call option for communicating with other Quantum Fox users. The calling interface also distinguishes regular cellular calls from browser-link calls, so you can choose the appropriate route.

Only the supported secure calling paths should be described as end-to-end encrypted. Ordinary PSTN calls do not automatically gain end-to-end encryption.

During verification, the original phone number is used temporarily and then discarded by the Quantum Fox verification system. A scrambled identifier and cryptographic key information support lookup without retaining that original number in the verification database.

Each user can have a Quantum Fox 555 identity and decide whether to make it discoverable, keep it private or delete it. Deleting an identity does not erase information already held by another person or a cellular carrier.

Quantum Fox is designed for people who want straightforward controls as well as those who want more detailed privacy settings. Baseline mode keeps the interface approachable; advanced options provide greater control over protection and visibility.

Quantum Fox is designed to evaluate suspicious links and help users spot potential phishing. No automated link checker catches every threat. Details about data handling, providers and protection limits will be published after final review.

Quantum Fox is built around privacy-preserving verification and end-to-end encrypted communication on supported channels. Internal testing is not a substitute for independent security review, which is still pending.

Carrier SMS, conventional cellular calls, device compromise and recipients sharing information can fall outside the app's end-to-end encryption guarantees. This website is a preview of the product documentation; claims should be checked against the release build before launch.