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

HelpScout
Hiver
Freshdesk
Zendesk
Helpy.io
Front
Zoho Desk
Turns Google Workspace Into Your Team’s Help Desk

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 | keeping.com |
| Pricing | — | |
| Company | — | Startup from the United States · 1 - 9 employees · 2020 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of isync (mbsync) yet.
Keeping is a shared inbox and helpdesk tool that lives inside Gmail, turning a shared mailbox like support@company(dot)com into a collaborative workspace where customer emails become trackable tickets with assignments, statuses, tags, and collision detection. It adds helpdesk power (templates,...
What each product offers, as listed by its team.

Possible disadvantages
Walkthroughs and reviews on video.
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DROP 2025 REVIEW | Keeping the Shot INTERESTING!
More videos
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing isync (mbsync) and Keeping.
Keeping's answer:
Small and medium sized businesses
Keeping's answer:
Built in GCP (Google Cloud), with React, Elixir, and Phoenix.
Keeping's answer:
Keeping was built to help teams manage customer support without leaving Gmail. It brings the structure of a help desk to shared inboxes, making it easier to assign, track, and respond to customer emails as a team.
Share your experience with using isync (mbsync) and Keeping. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

We have no reviews of isync (mbsync) yet. Be the first one to post
Are you a fan of Gmail? Or would you prefer to not have to log into a dedicated tool to answer support requests? If it’s the latter, then Keeping might be for you. Keeping works by turning Gmail into a fully featured...
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 / almost 2 years 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 Keeping since Mar 2021.
When comparing isync (mbsync) and Keeping, you can also consider the following products.

Console-based utility for migrating IMAP mailboxes.
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Help Scout is a simple, straightforward way to provide excellent support
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MailStore Home - A 100% free single-private-user desktop solution
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Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Compare Freshdesk to isync (mbsync) or Keeping: