G2 Vendor Directory

K-9 Mail

by Opensource

13

Reviews

4.5

Star rating

#27

Rank in Email Client

Pros and cons

Pros

    Cons

      Traffic & LLM citations

      Monthly G2.com page views and citations by AI answer engines for K-9 Mail.

      Page views and citations · K-9 Mail

      Source: G2 review data

      Losing to

      Based on reviewers of other products who said they switched from K-9 Mail.

      1

      BlueMail

      1 switched

      Key stats

      —

      69

      Small Business

      1

      Adoption by company size

      SegmentShare of reviews
      Small Business46.2%
      Mid-Market30.8%
      Enterprise23.1%

      Quarterly history

      QuarterReviewsStar rating

      Satisfaction ratings

      Ease of Use8.7
      Ease of Setup10.0
      Quality of Support8.6
      Meets Requirements9.0

      What reviewers say

      Private, open-source email

      5.0

      “K9 is by far the best email client I've found for Android. I'm glad for its open-source nature as it helps to be secure in the knowledge that my email is not being listened-in-on, as well as other more advanced features such as E2EE via PGP encryption.”

      Software Engineer

      Excellent option to management of POP3 and IMAP.

      5.0

      “It's simple to use and it has a lot of options to configure your emails.”

      Analista mayor de servicios tecnicos de Licencias de Gas

      Solid app for Exchange email

      4.5

      “The layout is clean and simple to use. It allows me to keep up to date with my work emails while on the go.”

      Technical Support & Software Trainer