Smart. Focused. Email.
Fast, cross-platform email designed to filter out the noise - so you can focus on what's important.
Definition
💡 Email client: the app or program you actually open to read, write, and organize your inbox. Gmail's website, the Outlook desktop app, Spark on your phone, they're all email clients. The client is the interface. Your email account (and the server behind it) is the actual mail. People use "email" to mean both the message and the app interchangeably, but they're not the same thing. Your email account lives on a server somewhere. The client is just the window you look through to manage it, and you can usually swap that window without losing anything behind it.
When webmail stops being enough
Here's a question worth asking: why would you ever need more than the built-in webmail your provider gives you? Plenty of people never do. But once you're juggling more than one account, that default experience starts showing its limits fast.
Say you've got a Gmail account for work and an Outlook account for a client project. Checking both means two separate logins, two separate tabs, two separate places something can slip through unnoticed. A dedicated email client solves that by connecting to multiple accounts and mail protocols (IMAP, POP3, Exchange) and showing everything in one interface. You're not switching context every time you check mail. You're just checking mail.
This is where the choice of client stops being cosmetic. A webmail interface renders your messages. A strong client actively helps you triage them: surfacing what's actually important, grouping the noise, keeping calendar and email context connected.
Email clients like Spark build their whole design around that gap, treating the inbox as something to manage down to zero friction rather than something you passively scroll.
And to be fair, not every client needs to do all of that. If you get five emails a day, the built-in Gmail app is genuinely fine. The complexity only pays off once your volume and account count go up.
Types of email clients
You've got three broad categories, and they solve different problems.
Webmail. Gmail.com, Outlook.com, Yahoo Mail in a browser tab. No install required, accessible from any device, but tied to whatever that one provider offers. Fine for casual use, limiting the moment you want cross-account features.
Desktop clients. Traditional standalone software (Outlook for Windows, Apple Mail on Mac) installed locally, often with offline access and deeper OS integration. Heavier to set up, but usually faster once running.
Multi-platform clients. Apps like Spark that sync across desktop, mobile, and web, built specifically to unify multiple accounts and providers into one consistent inbox. This is the category built for people who genuinely live in their email across several devices a day.
Webmail wins on simplicity. A dedicated multi-platform client wins the moment your work spans more than one account or device, which, for most working professionals, is basically immediately.
How to set up an email client
In Gmail: Gmail is phasing out "Check mail from other accounts" over POP for new users, so on desktop you can no longer set up new third-party imports that way. To pull other accounts into a Gmail-based workflow, add them through the Gmail mobile app instead, which connects over IMAP, or set up automatic forwarding from your other provider so mail arrives directly in your Gmail inbox.
In Outlook: Go to File, then Add Account, and enter the email address you want to connect. Outlook auto-detects the right server settings for most major providers.
In Spark: Go to Settings, then Accounts, and select Add an Account. Sign in with each email address you want connected. Spark supports Gmail, Outlook, iCloud, Yahoo, and any IMAP-based account, and merges them into one unified inbox if you want that view, or keeps them separated by account if you don't.
Setup takes a few minutes per account, regardless of which client you pick. The real work is deciding which one you want to live in every day.
Picking (and switching) email clients
Do I need a dedicated email client if I only have one account?
Not really. A single account with light volume is exactly what built-in webmail was designed for. The case for a dedicated client gets stronger once you add accounts or volume.
What's the practical difference between IMAP and POP3 in a client?
IMAP keeps your mail synced and mirrored across every device you check it from. POP3 downloads mail to one device, which can leave your phone and laptop showing different things. Check which one you're using before you're confused why a deleted email is still sitting somewhere.
Can I try a new email client without disrupting my current setup?
Yes, most clients, Spark included, let you connect an account without abandoning your existing one. Run it alongside your current setup for a week before switching everything over.
Is webmail technically an email client?
Yes. It's just a browser-based one, tied to a single provider rather than built to unify several.
Related content
- Reasons why Spark makes the best inbox by Gmail alternative
- Essential features a good email app must have