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Questions about access, security, or your account? Reach our team and we'll get back to you.
Email support
Reach us directly and we typically respond within two business days.
support@quantumchat.cloudCommon questions
Answers about post-quantum encryption, supported platforms, and access.
Read the FAQSecurity & compliance
For security disclosures or compliance documentation requests.
Contact security
Platform Availability
QuantumChat is in active development across every platform. All clients are on the way — access opens as each platform reaches public release.
| Platform | Current status | Release type | Version target | Distribution |
|---|---|---|---|---|
| Android | Coming Soon | Public Beta | Android 10.0+ | → Coming Soon |
| iOS & iPadOS | Coming Soon | Beta | iOS 16.0+ | → Coming Soon |
| macOS | Coming Soon | Alpha | macOS 13.0+ | → Coming Soon |
| Windows | Coming Soon | Early Access | Win 10 / 11 (64-bit) | → Coming Soon |
| Linux | Coming Soon | Early Access | Ubuntu 22.04+ | → Coming Soon |
| Browser | Call | Message | Transfer | Vault | Install |
|---|---|---|---|---|---|
| Google Chrome Desktop · 88+ |
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| Microsoft Edge Desktop · 88+ |
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| Chrome Android · 88+ |
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| Safari macOS · 16+ * |
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| Safari iOS & iPadOS · 16+ * |
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| Mozilla Firefox Desktop · 97+ ** |
FullLimitedMessage, Transfer & Vault are post-quantum end-to-end encrypted on every listed browser.
* Safari (macOS · iOS): protected post-quantum call media is not currently admitted; the Call capability remains Limited and must not silently downgrade; screen share and push are unavailable on iOS. ** Firefox: protected post-quantum call media is not currently admitted; the Call capability remains Limited and must not silently downgrade. Minimums reflect the app build (ES2022 + WebRTC Encoded Transform): Chrome/Edge 88+, Chrome for Android 88+, Safari 16+, Firefox 97+.
Account & access
QuantumChat is rolling out to organizations and individuals from a waitlist. If your organization uses QuantumChat, your administrator can issue access. To request access, email us with your team details.
Request accessQuantumChat — quantum-safe by design.