Alternatives

Products that do what INBOXOTA does

Your all-in-one email management solution

1
Inbox by Google▲1,148
Next generation inbox
2014 · google.com
2
Inbox Zero▲821
Clean up your inbox in minutes, open source
2023 · getinboxzero.com
3
InboxSDK▲508
First usable API to write Gmail Apps for 1B active users
2015
4
Superinbox▲531
Email vibing in your Gmail / Outlook
Oct 2025 · superinbox.com
5
Front for iOS▲406
The first inbox for teams
2016
6
InboxPro▲174
Boost your productivity & turn Gmail into a powerful machine
2022
7
Darwin Mail▲259
Enhance Gmail to get your Google Inbox features back.
2019
8
Sortd for Gmail▲555
Trello for Gmail - Transform your email into organized lists
2015
9
Ceejay▲151
Give your inbox and calendar a brain.
2024
10
Superflows▲476
AI assistant for email - get to inbox zero faster
2023
11
Spark▲369
A smart, fast and free email client for iPhone
2015
12
Inbox Grader by Freshworks▲143
Free metrics 📈 for your business and team email ✉️
2018
13
Loop Email▲257
Emailing for teams: Organize your Inbox into channels 💌
2018
14
Tribe▲126
Easy way to track and complete task inside your inbox
2015
15
MailMentor▲162
A data driven approach to writing better email
2015
16
Spark for Android▲296
The much beloved email client now on Android
2019
17
Cloudmagic▲123
Compete Your Work Right From Your Email Inbox
2014
18
Spark Shared Inboxes by Readdle▲104
Access common Emails and enhance collaboration
2021
19
Inbox 2.0 for Documents▲129
Declutter your digital life
2023
20
Inbox AI▲201
AI-Powered Personal Productivity
2024
21
NotionMail▲200
Personalized to your work and designed like Notion
2025
22OS
Open-Sourcing InboxSDK (YC S11) – Build Apps in Gmail▲257
Hi HN! We’re Aleem, Chris, Borys, Meichen and Zach from Streak (YC S11) and today we’re open sourcing our InboxSDK https://www.inboxsdk.com, which makes it easy to build apps for Gmail. Over 1.8B users spend their days in Gmail! Having your app built into the Gmail workflow is a better user experience and gives you great user retention. InboxSDK gives you a high-level, declarative API to insert your UI into Gmail without having to directly manipulate the DOM yourself. End users install a browser extension to use your app. The SDK can add UI to multiple areas of Gmail. For example,…
2022
23
SupportYard▲87
Organize emails and let your team respond from one inbox
2015
24
Insumo▲130
Smart newsletter with calendar and personalized habits
2021

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