Questions about Rio

Yes. Rio is signed with a Developer ID and notarized by Apple, so it opens like any app you download: macOS asks once if you want to open it, and you click Open.

Yes. It's free to use, and the code is open source under GPL-3.0.

Sparkle checks github.com/Levivajan/rio-releases every hour, and a card in the sidebar offers the signed update. Restart to install it, or it installs when you quit. The check sends no system profile.

No analytics, crash reports or account. On its own, Rio only contacts these: GitHub, for the update check; Google Safe Browsing, with a short hash prefix when a page matches Google's list of unsafe sites; your search engine, with what you type in the command bar, for suggestions; Google's component updater, for Chromium parts such as the Widevine plugin; and sites in your sidebar, for icons of imported tabs and live folder feeds every 30 minutes, with no cookies. Tab naming runs on your Mac. Ask opens ChatGPT, Claude or Grok in a tab.

Chrome Web Store extensions, Manifest V3 included. Side panel extensions open on the right, as in Chrome.

No. It reads Arc's files on your Mac, and macOS asks once before Rio reads Arc's saved passwords.

Rio is made for the Mac: Apple silicon, macOS 13 or later. It takes about 360 MB.

On GitHub, at github.com/Levivajan/rio/issues. Include your macOS version and Rio's version from About Rio. In Rio, Help, Report a Problem opens the same form.

Yes, if you release it under GPL-3.0 too.

Rio is signed with a Developer ID and notarized by Apple, and its updates are signed. It runs Chromium 158 with Google Safe Browsing on. Its source code is public on GitHub, so anyone can check what it does. Security fixes go into the latest release.

No. Rio has no analytics, no crash reports and no account. Your tabs, history and passwords stay on your Mac. The few services it contacts on its own are listed under What does Rio send.

No. Rio has no account and works without signing in to anything.

Rio is built on Chromium 158, the open-source project Chrome is built from, so pages render as they do in Chrome and Chrome extensions work. Rio is a separate browser with its own interface.

No. Rio is an independent project by Levon Adamyan. It contains none of Arc's code and is not affiliated with or endorsed by The Browser Company, Google or Apple.

Yes. Import from Google Chrome brings bookmarks, history, saved passwords, cookies and site data, so your sites stay signed in. macOS asks once before Rio reads Chrome's saved passwords.

Privately, through GitHub. Open the Security tab of github.com/Levivajan/rio and choose Report a vulnerability. Please don't open a public issue for it.