Verifiable, not just claimed

"Zero network calls" is a checkable claim, not a marketing line. Here's exactly how it's checked — reproduce it yourself if you don't take our word for it.

Static code audit

Grep the entire source for fetch/XMLHttpRequest/WebSocket and Rust-side network primitives (reqwest, TcpStream, UdpSocket). No HTTP plugin is even a dependency — there's no exception to carve out.

Sidecar scope check

Audio, Documents, and Video shell out to bundled binaries (FFmpeg, Pandoc) rather than a Rust crate. The shell-execute capability is scoped to exactly those two named sidecars, nothing else.

OS-level firewall block

Block all outbound traffic for the packaged binary at the Windows Firewall and confirm every conversion — images, audio, video, documents, spreadsheets — keeps working fully.

verify.sh

$ grep -rn "fetch(\|XMLHttpRequest\|WebSocket" src/
(no matches)

$ grep -rn "reqwest\|TcpStream\|UdpSocket" src-tauri/src/
(no matches)

$ New-NetFirewallRule \
 -Program airconvert-desktop.exe -Action Block

✓ every conversion keeps working normally▍

Current status: the static audit above has been run against the full codebase with no unexpected matches. The firewall/VM run is a manual step against a signed release build — not yet performed. Treat any offline claim as unverified until this line is updated.