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by
Skyler Reeves
November 28, 2024
· Updated on
June 3, 2026
Quick Answer: The best email client for Gmail depends on your use case. For team collaboration, Missive layers shared inboxes, assignments, and internal comments on top of Gmail. For solo speed, Superhuman. On a Mac, Apple Mail or Mimestream. For a free, open-source option, Thunderbird. They all connect to Gmail securely through Google's official OAuth.
"It was very startupy. Everybody just had their own Gmail." That's how Kendra Edelman Smith, COO of Weekly Accounting, describes the way her firm ran email before it had 50 people and 200 clients to answer to. You'd CC whoever needed to be looped in, and hope the right person answered.
Most teams know that feeling. Gmail is the most popular email service on earth, and for one person it's hard to beat. But Google never shipped a real desktop app, and Gmail's web interface was built for an individual checking their own mail, not for a team sharing the work. So the same question keeps coming up, whether you're a power user who lives in their inbox or an ops lead trying to get five people out of one account: what's the best email client for Gmail?
To answer it, we tested the current crop of clients across the criteria people actually care about: interface, email management, productivity features like snooze and schedule, collaboration, customization, and how well they juggle multiple accounts. Here's what we found, sorted by who each one is for.
Definition: A Gmail email client is a third-party desktop or mobile app that connects to your Gmail account (through OAuth or IMAP) and replaces the Gmail web interface with its own. It can add things Gmail lacks natively, like a true desktop app, a unified inbox across several accounts, or real team collaboration.
The reasons to switch fall into three buckets. Some people want a faster, calmer interface and better email management than the browser tab gives them. Some want one window for several Gmail accounts plus their other providers. And teams want to stop forwarding, CC'ing, and asking "did anyone reply to this?" in chat. The right pick depends on which of those is your actual problem.
| Tool | Best for | Platforms | Team collaboration | Free plan | Starts at |
|---|---|---|---|---|---|
| Missive | Teams & collaboration | Mac, Windows, Linux, iOS, Android, Web | ✅ Shared inboxes, assignment, comments | ✅ Yes | $18/user/mo |
| Apple Mail | Mac users | Mac, iOS | ❌ None | ✅ Yes | Free |
| Outlook | Windows users | Windows, Mac, Web, mobile | ➡️ Shared mailbox only | ✅ Yes (ads) | $1.99/mo |
| Thunderbird | Free / open-source | Mac, Windows, Linux | ❌ None | ✅ Yes | Free |
| eM Client | Customization | Mac, Windows | ❌ None | ✅ Yes (personal) | ~$60 license |
| Gmelius | Staying inside Gmail | Gmail (browser/extension) | ✅ Shared inboxes, assignment, notes, shared labels | ➡️ Limited | $24/user/mo |
| Spike | Chat-style email | Mac, Windows, Web, mobile | ✅ Shared inbox, assignment, in-thread comments | ✅ Yes | $5/user/mo |
| Superhuman | Individual speed | Mac, Windows, mobile | ➡️ Team comments, shared threads | ❌ No | $30/mo |
| Canary Mail | Mobile / AI | Mac, iOS, Android, Windows | ➡️ Shared inbox (add-on) | ✅ Yes | $49/yr |
| Mailbird | App integrations | Windows, mobile | ❌ None | ✅ Yes (1 account) | $4.03/user/mo |
If your real problem is that email is shared work, a personal client won't fix it. Missive is built for the case where several people answer from the same Gmail address and need to do it without stepping on each other.
It connects your Gmail accounts through Google's official OAuth and turns shared addresses into team inboxes, so incoming mail lands in one place the whole team can see. You assign a conversation to one person and it leaves everyone else's inbox, which is the part that actually empties the shared pile. Teammates leave internal comments with @mentions instead of forwarding, and drafts are collaborative in real time, like a Google Doc, so two people can shape a reply before it goes out. Rules handle the routing: assign by keyword, balance workload round-robin or least-busy-first, or let AI label incoming mail. The same setup makes email delegation to an assistant or contractor straightforward, which is how leaner teams handle more volume without forwarding everything to one person.
This is exactly the setup Scale CPA, a fully remote accounting firm on Google Workspace, landed on. Before Missive, they force-forwarded everything from their scalecpa.com domain to a single admin Gmail account just to keep some visibility into who was handling what. They'd been weighing Front. As operations analyst Chris Wattinger put it, "Missive had all the stuff we wanted from Front, it was more affordable, and the implementation was pretty easy." The day-to-day payoff was the collaboration: "About 30 to 40% of our workflow is just working on client emails, and being able to tag somebody to draft or work on an email has been a huge value to us."
At Weekly Accounting, that's also where the comment system earns its keep. "We have these inboxes where everyone can help each other," says Brett Fairchild. "The comment system is invaluable. Every single day, Kendra and I are tagging each other on things."
Missive isn't perfect. There's a learning curve if you're coming from a plain inbox, some power-user customization is thinner than dedicated clients, and the more advanced collaboration sits on paid tiers. One quirk worth knowing: because Missive drafts are fully collaborative, they don't sync back to Gmail's own drafts folder.
Price: Free plan available; paid plans start at $18 per user per month. See Missive's pricing for current tiers. It tends to land well for small teams that want to collaborate around email.
For macOS, Apple Mail is the quiet overachiever. It's free, pre-installed, deeply integrated with the system, and far more capable than people give it credit for: custom filters, smart mailboxes, notification control, send-later scheduling, and built-in privacy tools. For most Mac users connecting a Gmail account, it's enough.
If you want something built specifically around Gmail, look at Mimestream. It uses Gmail's own API rather than generic IMAP, so labels, categories, and search behave the way they do in Gmail, with a native Mac feel on top.
Price: Apple Mail is free. Mimestream is a paid subscription (verify current pricing).
On Windows, Outlook is still the default for a reason: strong search, a full calendar in the same window, and tight Microsoft 365 integration. It connects Gmail over OAuth without much fuss.
The honest caveat is that the newer Outlook has been divisive. Microsoft moved it closer to a desktop wrapper of the web app and dropped tools some power users relied on, and shared-mailbox handling took a step back. Plenty of people find the web version smoother than the new desktop build.
Price: Free with ads, or about $1.99 per month ad-free.
If you want something free, private, and community-driven, Thunderbird has earned its reputation over the years. Tabbed viewing, strong custom search and filtering, built-in phishing and spam protection, and a deep add-on ecosystem. Setup wizards make connecting Gmail straightforward, and quick filters make triage fast.
Price: Free.
If tweaking every detail is the point, eM Client bundles mail, calendar, tasks, and notes and lets you reshape almost all of it: translation on the fly, contact watchlists, advanced attachment search, templates and snippets, and a customizable toolbar. The flip side is that all that flexibility can feel like a lot if you're coming from something simpler.
Price: Free for personal use; commercial licenses from around $60.
If you're attached to the Gmail interface but want a little team power under the hood, Gmelius works inside Gmail itself. It adds shared inboxes, assignment, internal notes with @mentions, and Kanban boards without making anyone leave the tab they already know. Because it lives in Gmail, your mail never goes anywhere else.
Price: Starts at $24 per user per month, billed annually.
Spike rethinks email as a chat feed. Instead of chrono-threaded messages, you get conversational channels organized around people and teams, with notes, voice clips, and video calls in the same place. It keeps account unification and calendar support. The conversational design isn't for everyone, but for people who think in chat it clicks.
Price: Free plan available; paid from $5 per user per month.
Superhuman is built for one person moving through their inbox as fast as humanly possible: keyboard-first, an AI engine for split inboxes and follow-up reminders, and a famously polished feel.
It's also the clearest example of why "best for you" and "best for your team" can be different answers. Geoff Todd, who runs Farsight, loves it: "I do love Superhuman. I've struggled to give it up. I'm properly addicted." But as his team grew, the limit showed up. "The main thing I struggle with is there's just this one list where everything's all jumbled in together." His read on where it's heading is the useful part: "As the team gets bigger, it's just going to be more and more useful that there's only one place to check." Superhuman has since added team comments and shared threads, so colleagues can weigh in on a message. But it's still built around your own inbox, not a shared one your team works out of together, which is the gap Geoff is pointing at.
Price: Starts at $30 per month.
Canary leans into AI on mobile: it prioritizes messages, writes summaries, and drafts replies from prompts, which closes a lot of the gap between phone and desktop email. If you do most of your email on the go, it's worth a look. Canary has also added a separate Shared Inbox add-on with assignment and internal comments, though team collaboration isn't the app's main focus.
Price: Free plan available; paid from $49 per year.
If you run several Gmail accounts alongside other providers and want one tidy hub, Mailbird connects to 30+ tools like Google Calendar, Slack, Asana, and Trello, with a layout you can tailor and the usual snooze, tracking, and AI-assist features. It's built for individual productivity, though, so there's no shared inbox, internal chat, or assignment, and the free plan is capped at one account per device.
Price: Free plan available; premium from $4.03 per user per month annually, or $99.75 once.
Start by being honest about whose problem you're solving.
If it's your own inbox and you mostly want speed, polish, or a calmer interface, a personal client wins. Superhuman for raw speed, Apple Mail or Mimestream on a Mac, Thunderbird if you want free and open, eM Client if you love to customize. None of them ask you to change how your team works, because the team isn't the problem.
If the problem is shared, the calculus flips. The moment more than one person answers from the same address, the things that matter are assignment (who owns this?), visibility (has anyone replied?), and a way to talk privately about a message without forwarding it. That's where forwarding chains and CC threads quietly fall apart, the way they did at Weekly Accounting when "everybody just had their own Gmail." A collaborative client like Missive (or Gmelius, if staying inside Gmail matters more than anything) is built for that, and a solo client, however nice, will keep papering over it.
A simple way to decide: if your email is a personal workflow, pick the client that feels best to you. If your email is a team's shared work, pick the one your whole team can actually work in. Many of the habits that make a shared inbox work hold up no matter which tool you choose, but they're far easier when the tool is designed for more than one person.
For most power users and nearly every team, yes. Gmail's web app is excellent for one person doing their own email, but a dedicated client adds what the browser tab can't: a real desktop experience, a unified inbox across multiple accounts and providers, deeper productivity features that get you closer to inbox zero, and, with a tool like Missive, genuine collaboration. If Gmail in the browser already does everything you need, there's no rule that says you must switch. The clients above exist for the moments when it doesn't.
There's no single winner, because the best client depends on your use case. For teams that share an inbox, Missive adds shared inboxes, assignment, and internal comments on top of Gmail. For individual speed, Superhuman. On a Mac, Apple Mail or Mimestream. For a free, open-source option, Thunderbird. All of them connect to Gmail through Google's official OAuth, so your mail stays in your Google account.
Google has never released an official Gmail desktop app. Gmail is a web service, so a "desktop app" means a third-party email client (like Missive, Apple Mail, Outlook, or Thunderbird) that connects to your Gmail account and gives you a dedicated app window instead of a browser tab. You can also save Gmail as a browser-based progressive web app, but that's still the web interface.
Yes. Google supports connecting third-party clients through OAuth, the secure sign-in flow where you grant the app access without sharing your password. Most modern Gmail clients, including Missive, use this official method. You can connect as many Gmail accounts as you need, and your email continues to live in your Google account.
For a fully free, open-source desktop client, Thunderbird is the standard pick: cross-platform, private, and highly extensible. Apple Mail is free on Mac and iOS and well integrated with the system. Missive offers a free plan too, which is the easiest way for a small team to try shared inboxes before paying. Outlook has a free, ad-supported tier on Windows.
For teams, the deciding features are shared inboxes, conversation assignment, and a way to discuss a message internally without forwarding it. Missive is built around exactly that, which is why accounting firms like Scale CPA and Weekly Accounting run their Google Workspace email through it. Gmelius is a strong option for teams that would rather add those capabilities inside the Gmail interface itself.
Try Missive free and get your team out of one shared Gmail account in an afternoon.