imapsync
MailStore
Gmvault
getmail6
OfflineIMAP
mnIMAPSync
FastMail
mbsync is a command line application which synchronizes mailboxes.

Drift
Percepto AI
Lemprep
Qualified.io
Marketing Optimizer
Warmly
Cognism
Docket’s AI agent engages in autonomous conversations with website visitors, qualifies & converts leads, and captures intent to boost pipeline by 15%.

Which is more popular?
Based on our record, isync (mbsync) seems to be more popular. It has been mentioned 17 times since March 2021.
Website, pricing, platforms and company facts side by side.
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isync (mbsync)
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| Website | isync.sourceforge.io | docket.io |
| Company | — | Startup from the United States · 20 - 49 employees |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of isync (mbsync) yet.
Docket’s AI conversational marketing agent participates in human-like exchanges with website visitors to increase qualified pipeline generated by over 15%. Docket does this by using its Sales Knowledge Lake™ to unify your company’s scattered GTM data, turning into an autonomous subject-matter...
What each product offers, as listed by its team.

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

No analysis of isync (mbsync) yet.
Overall verdict
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Docket AI Seller Demo
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using isync (mbsync) and Docket.io. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Instead of migrating from server to server — and remaining on computers I don’t own - I download locally which it looks this tool doesn’t do. I use mbsync/isync which is fast and reliable. https://isync.sourceforge.io/. - Source: Hacker News / over 1 year ago
There are also isync and OfflineIMAP which sync email locally. Source: over 3 years ago
I set up mbsync to mirror the current (last 90 days) of my Fastmail IMAP account into another local Maildir, and told Notmuch to index that as well. This ensures a Notmuch search will cover both current & archived messages. Source: over 3 years ago
Tracking Docket.io since Jun 2025.
When comparing isync (mbsync) and Docket.io, you can also consider the following products.

Console-based utility for migrating IMAP mailboxes.
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A messaging app that helps you grow your business.
Compare Drift to isync (mbsync) or Docket.io:

MailStore Home - A 100% free single-private-user desktop solution
Compare MailStore to isync (mbsync) or Docket.io:

Percepto is a voice-first AI agent that embeds on any website with one script tag. It scores visitor intent using 15+ browser and IP signals in under 500ms, then opens a personalised voice conversation focused to convert. Cognis: B2B & Misha: D2C
Compare Percepto AI to isync (mbsync) or Docket.io:


Lemprep delivers fast, AI-powered strategic prospect reports so sales reps can skip long research sessions, run smarter discovery calls, and consistently convert more opportunities into closed business.
Compare Lemprep to isync (mbsync) or Docket.io: