Most people don't have one inbox. There's a work Gmail, a personal Gmail, a personal Outlook from years ago, a Yahoo address for shopping, and maybe a Proton account for anything private. MultiMail and WebCatalog Desktop both bring those inboxes out of the browser and into one app, each running the provider's own web version, with every account signed in.
MultiMail is built only for email, and only for Windows, where it calls itself "the best way to Gmail." WebCatalog Desktop handles your email the same way, then gives the rest of your web apps that treatment too, on Windows and Mac.
At a glance
| WebCatalog Desktop | MultiMail | |
|---|---|---|
| What it is | Web apps as desktop apps, organized into spaces | A Windows app for webmail accounts |
| Apps covered | Gmail, Outlook, Yahoo, Proton, and a catalog of 65,000+ apps, plus any website | Gmail, Outlook, Yahoo, Proton, iCloud, and 20+ other email providers |
| Multiple accounts | Every account signed in side by side, each with its own session | Isolated accounts in one window |
| Organizing apps | Spaces, each in its own window, with folders inside | One window for all your mail |
| Notifications | Unread badges per account and on the taskbar, mute per account | Desktop alerts that show which account got mail |
| Extras | Ad and tracker blocker, app lock, home with to-dos and focus mode | Snippets, a scratchpad, command palette |
| Platforms | Windows, macOS, Linux | Windows 10 and 11 |
What is WebCatalog Desktop?
WebCatalog Desktop turns websites into desktop apps with their own windows, icons, and logins. Email is a big part of that: install Gmail, Outlook, or any webmail from the catalog, add as many accounts as you need, and they stay signed in side by side.
What is MultiMail?
MultiMail is a Windows app that promises "all your Gmail, Outlook & Yahoo accounts & more in one app." It runs each provider's real web version, keeps each account isolated, and adds desktop alerts that show which account received a message, snippets, a scratchpad beside your mail, and a command palette.
1. Your Gmail inbox, and everything around it
MultiMail is for email, and does that well. But a reply often leads somewhere else: the Slack thread it mentions, the Notion page you need to update, the invoice in your accounting app.
In WebCatalog Desktop, those apps live next to your inboxes. A small business owner might keep Gmail, QuickBooks, Shopify, and WhatsApp together in a space: one window, each app a click or Ctrl plus a number away. With a catalog of more than 65,000 apps, the tools you use are almost certainly there already.
2. Gmail and Outlook accounts, grouped by app
Both apps keep every account isolated. WebCatalog Desktop groups them by service: the Gmail app holds all your Google accounts, each with its own session, picture, and unread badge, and the Outlook app holds your Microsoft ones.
You choose what interrupts you, one account at a time. Keep alerts on for work, mute notifications and sounds for the shopping address, and hide the badge on the account you check once a week.
3. A window per part of your life
MultiMail puts all your mail in one window. That's simple, until your work inbox and your family email are pinging from the same place at nine at night.
In WebCatalog Desktop, a "Work" space and a "Personal" space are separate windows, each with its own taskbar icon and global keyboard shortcut. Close "Work" at the end of the day, and its notifications stop with it. Freelancers can go further, with a space per client holding that client's email, chat, and files.
4. Gmail on your Mac too
MultiMail runs on Windows 10 and 11. WebCatalog Desktop runs on Windows, macOS, and Linux, and syncs your accounts list, folders, and settings across them. Set up your inboxes on your office PC and they're waiting on your MacBook at home.
5. Quick access and privacy
Any WebCatalog Desktop app can pin to the Windows system tray or the Mac menu bar, popping up when you need it. A command palette gets you to any app from the keyboard, and a built-in home holds your to-dos and a focus mode for when the inbox can wait.
For privacy, a built-in ad and tracker blocker runs in every app, an app lock keeps your mail private when you step away, and 1Password and Bitwarden fill logins inside each app.
Which one should you choose?
MultiMail can make sense if you specifically want an app made only for email, with snippets and a scratchpad beside your inbox, and you only use Windows.
WebCatalog Desktop is the better fit if you:
- Want your chat, docs, and other tools out of the browser along with your email
- Want work and personal mail in separate windows you can close
- Use a Mac too, or move between computers
- Want to quiet notifications one account at a time
Bring every inbox, and everything around it, into one place: try WebCatalog Desktop.
