Growth · alternatives · 2026

24 alternatives to 500Mail by 500apps

Best Email Client Software

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 500Mail by 500apps launched in 2022; newer entries below may have overtaken it.

1
Mailsend by 500apps▲6
Email marketing software
2021 · 500apps.com · its alternatives →
2
Polymail▲1,567
A simple, beautiful, and powerful email client for Mac
2015 · polymail.io · its alternatives →
3
Airmail 3▲555
A simple, beautiful email client for Mac and iOS
2016 · airmailapp.com · its alternatives →
4
Inbox by Google▲1,147
Next generation inbox
2014 · google.com · its alternatives →
5
Zero▲845
Hi HN, I’m Nizar, and I’m building Zero (https://0.email) — an AI-powered email client that manages your inbox for you. Email hasn’t changed in decades, even though the way we work has. The average knowledge worker now spends close to 30% of their week on email, constantly reacting, replying, and sorting through noise. It’s become one of the biggest productivity sinks in modern work. At the same time, AI has transformed how we write, plan, and collaborate — yet our inboxes are still stuck in the past. I built Zero to fix that. Zero automatically prioritizes, organizes, and even…
2025 · 0.email · its alternatives →
6
Boxy 2▲296
The best Mac client for Inbox by Gmail
2017 · boxyapp.co · its alternatives →
7
Mailbox for Mac (Beta)▲490
Fly through your email. Now on Mac
2014 · theverge.com · its alternatives →
8
Polymail Pro▲597
The ultimate email productivity app for business 💌
2016 · polymail.io · its alternatives →
9
DevMail▲183
Email sandbox for software developers
2024 · devmail.email · its alternatives →
10
Canary Mail▲430
Discover Canary Mail, the best email client with AI-powered features and integrated calendar. Access multiple accounts, prioritize important emails, and boost productivity effortlessly.
2016 · canarymail.io · its alternatives →
11
Mailmeteor▲567
Send hundreds of personalized emails with Gmail.
2019 · mailmeteor.com · its alternatives →
12
Mailbird▲111
The best email client ever that syncs and unifies your life.
2015 · getmailbird.com · its alternatives →
13
Spark for Android▲293
The much beloved email client now on Android
2019 · play.google.com · its alternatives →
14
WunderMail for Gmail▲145
The missing native desktop client for Gmail on Windows 10.
2018 · its alternatives →
15
Mail Studio – IDE for designing responsive emails▲395
Application for designing beautiful responsive emails that work everywhere.
2021 · mailstudio.app · its alternatives →
16
Airmail for iOS▲360
One of the best Mac email clients, now on iPhone
2016 · airmailapp.com · its alternatives →
17
Mailercloud▲257
Automate, optimize, convert, next level email automation
2024 · mailercloud.com · its alternatives →
18
MailAdept by mailwarm▲274
AI Agents & Email deliverability experts on your team
Jul 2026 · mailadept.com · its alternatives →
19
Inboxer▲212
A clean, open-source desktop client for Google Inbox 💌
2018 · denysdovhan.com · its alternatives →
20
Mailazy▲203
Cloud email infrastructure for the internet
2022 · mailazy.com · its alternatives →
21
Fastmail▲82
A privacy focused email client
2019 · fastmail.com · its alternatives →
22
WMail▲115
OSX App for Google Inbox and Gmail
2016 · github.com · its alternatives →
23
MailBluster▲30
Super cost-effective email marketing software
2020 · mailbluster.com · its alternatives →
24
AraMailer▲79
Powerful email marketing software to get more sales & clicks
2021 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →