It turns email threads to conversations which is very nice.

Also the way it separates real email from newsletters - it's so simple but works excellent.

Pros:

It's very useful

Cons:

No dark theme (yet?)

My wife and I have adopted this app wholesale. We live in it. We have feedback and feature requests. If the developer would like us to post here, let us know. We're happy to provide.

Pros:

increases comprehension & retention w/paradigm-shift to "talking"; makes email more approachable and engaging as a task; eliminates bullshit

Cons:

Just not mature yet - needs more complete feature set.

Automatically sending emails to my contacts without even asking is a dick move. Now everybody is irritated with me and I'm irritated with your product. Ignore your "growth hacker" and exercise some restraint. If the product is good it will grow organically.

Pros:

Clever design paradigm.

Cons:

Creating a group automatically spammed everybody in the group with an invite email.

I use Spike at work and there are some things I like and some I don't, but overall it makes my life easier and helps me avoid confusion. It does not group all messages from each email address together, but rather separates the automated messages. That's great for me because I get a lot of emails from email addresses that send both automated and "manual" emails. That way I can delete all of the automated messages at once, while keeping the actual communication between us intact. I DON'T like the fact it inserts a non-removable self-advertising link above the signature and it does not even let you know it does that. Spike is a free product so I understand why the have to do that BUT they should inform users in advance because they might NOT be OK with it :) Also, no way to print an entire email conversation/thread... Would love to see that feature soon.