
Spark Mail
Front
Superhuman
Shortwave
FastMail
Spike
Gmail
Team communication app now supporting FB, Twitter & SMS

Managed Hosting for developers, entrepreneurs, and businesses like yours

Which is more popular?
Based on our record, Missive seems to be more popular. It has been mentioned 15 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | missiveapp.com | opalstack.com |
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In their own words, as submitted to SaaSHub.


Email, group chat and tasks for productive teams. One app for all your internal and external communication. Work management at its best. Try it free!
No description of Opalstack yet.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Missive is highly recommended for small to medium-sized teams, remote teams, and businesses that require strong collaborative capabilities for managing emails and team communications efficiently. It is also suitable for teams looking for a unified inbox solution to centralize and streamline their communication channels.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Missive Email: Features, Pricing and Thoughts
More videos
No Opalstack videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Missive and Opalstack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Missive is by far the best collaborative email app for small/medium teams. I've tried many of them over the years and Missive just stands out. Also their team is super responsive and push bug fixes and new features...
We have no reviews of Opalstack yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


We use Missive[0] and it's pretty good. It's definitely not as low price as Jelly though. [0] https://missiveapp.com/. - Source: Hacker News / almost 2 years ago
Another alternative that many ClickUp users rely on is Missive (https://missiveapp.com). It offers similar functionality to Front but at a more affordable price. However, let's be honest, it still revolves around converting emails into... Source: about 3 years ago
Missive is a really good email client and made us love email again. It's not cheap (they have a free version) but it's great and still cheaper than Superhuman. Source: over 3 years ago
Tracking Opalstack since Sep 2023.
When comparing Missive and Opalstack, you can also consider the following products.

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
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The platform for exceptional customer service at scale.
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Email smarter & faster with a reinvented experience for your Gmail
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Email, calendars, and contacts to highest standards of security, privacy and reliability.
Compare FastMail to Missive or Opalstack:

Spike's AI-first email helps you stay organized, respond faster, and boost productivity effortlessly. By turning email into chat, you can work and collaborate efficiently - with anyone. Welcome to the future of email.
Compare Spike to Missive or Opalstack: