
Pipedrive
Zoho CRM
HubSpot
Insightly
Salesforce
HubSpot CRM
Freshsales CRM
A CRM with built-in calling, SMS, and email

Microsoft Outlook
Mailbird
eM Client
Postbox
Mailspring
Apple Mail
ProtonMail
Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!

Which is more popular?
Based on our record, Close seems to be more popular. It has been mentioned 8 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | close.com | thunderbird.net |
| Pricing | — | |
| Company | Startup from the United States | — |
| Listed in |
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Close is ideal for sales-driven organizations, especially small to medium-sized enterprises (SMEs) that require efficient lead management, streamlined communication, and actionable insights to enhance their sales performance.
No analysis of Thunderbird yet.
Walkthroughs and reviews on video.
Close Netflix Review
More videos
Thunderbird Review Holiday World Launched Wing Coaster
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


Switching Move from Close in a day. 012 minutes Connect Close Paste a Close API key in Settings → Migration. Leadey checks it and reads your account; nothing changes in Close. 025 minutes Choose what to bring Pick the...
Mozilla Thunderbird is an open-source email client developed by the Mozilla community. For people who like having their email offline, a range of customization options, robust data protection and privacy features, and...
Thunderbird’s interface takes a hint from Mozilla Firefox and other popular browsers and lets you open multiple emails in separate tabs. There are a lot of options to customize the look and feel of your inbox, as well...
Thunderbird is an open-source, cross-platform email suite. It is one of the best Mac mail applications that provides easy to use wizard for setting account. This software helps you to personalize the email the way you...
Recommendations tracked on public social media and blogs since March 2021.


Close (https://close.com) | Multiple Product & Engineering Roles | REMOTE (US) Close is a bootstrapped, profitable, completely remote, ~90 person team of thoughtful individuals who value autonomy and impact. Since 2013, we’ve been... - Source: Hacker News / over 2 years ago
Close (https://close.com) | Multiple Product & Engineering Roles | REMOTE (US) Close is a bootstrapped, profitable, completely remote, ~90 person team of thoughtful individuals who value autonomy and impact. Since 2013, we’ve been... - Source: Hacker News / almost 3 years ago
This sign-up sales email from Close.io (now close.com) will likely increase your conversion rate. Here's why it works well:. Source: over 3 years ago
Tracking Thunderbird since Mar 2021.
When comparing Close and Thunderbird, you can also consider the following products.

Sales pipeline software that gets you organized. Helps you focus on the right deals, so easy to use that salespeople just love it. Great for small teams.
Compare Pipedrive to Close or Thunderbird:

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Compare Microsoft Outlook to Close or Thunderbird:


Mailbird is the best email client for Windows 7, 8 and 10
Compare Mailbird to Close or Thunderbird:

Grow Better With HubSpot: Software that's powerful, not overpowering. Seamlessly connect your data, teams, and customers on one CRM platform that grows with your business.
Compare HubSpot to Close or Thunderbird:

eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
Compare eM Client to Close or Thunderbird: