🆚 Outlook on the web vs. Roundcube

Type

Webmail software
Webmail software

About

Outlook on the web is a web-based app included in Microsoft 365 that allows users to access their email, calendar, and contacts.

Roundcube Webmail is a browser-based multilingual IMAP client that provides full email access through a web interface with an application-like user experience.

It supports MIME and HTML messages, address book management with LDAP connectors, folder operations and message search, multiple sender identities, drag-and-drop message handling, plugin-based extensibility, and skinnable interface.

Headquarters

Redmond, Washington, United States
Stuttgart, Germany

Website

Pricing

Free version ✔️ Open source
Roundcube for Enterprises Custom

Categories

Webmail › Rank #2
Webmail › Rank #1

Popularity

Determined by the number of sites using each technology.

The Roundcube webmail software is 4 times more popular than Outlook on the web.
Total websites

Market share

Webmail

Popularity by country

Determined by the number of sites detected from each country.

Roundcube is more popular in the United States, Germany, and Poland, while Outlook on the web is more popular in Hong Kong, Algeria, and Singapore.
United States
Germany
Poland
Russia
Taiwan
Hungary
Czech Republic
Slovenia
Italy
Spain

Awards

Popularity by domain category

Determined by the number of sites in each category.

Roundcube is more popular among sites focused on web mail, Internet services, and marketing and merchandising, while Outlook on the web is more commonly used on business sites.
Business
Web Mail
Internet Services
Travel
Marketing/Merchandising
Entertainment
Job Search
Government/Military
Software/Hardware
Technical/Business Forums

Top sites

Top-ranked sites that use these technologies.

Name
Rank
#52,289
View more ➝
Name
Rank
#19,964
#32,907
#42,375
View more ➝

See also

🗃️ About This Data