Software:Hiri (email client)

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Hiri logo.png
Hiri inbox screenshot.png
Developer(s)Hiri Inc
Initial releaseOctober 1, 2012; 8 years ago (2012-10-01)
Final release[1] / August 20, 2018; 2 years ago (2018-08-20)
Written inPython and Qt, QML
Operating systemWindows, macOS, Linux
TypeEmail client

Hiri was (now defunct) a business focused desktop e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks. It was developed as an alternative to existing e-mail clients and calendar applications such as Microsoft Outlook and Mozilla Thunderbird. Development on Hiri started in late 2012 in Dublin, Ireland.[2] Although Hiri was developed actively with many releases in primarily 2017 and the first half of 2018, there have been no new releases and no active development anymore since August 2018.[1] Also, Hiri Suggestions, a dedicated subdomain for acquiring new ideas for development, has not received replies from the development since last year.[3]

Hiri uses the cross-platform Qt[4] framework to run on Windows,[5] macOS[6][7] and Linux.[8][9][10] Hiri does not support IMAP and only uses Microsoft Exchange Server infrastructure.

Hiri has been funded by Telefonica,[11][12][13] Delta Partners, ACT Venture Capital, Enterprise Ireland and Angel investors Facebook and LinkedIn.[14][15][16]

In March 2017, Hiri began charging a subscription service ($39 yearly; $119 lifetime).[17]


  • E-mail synchronization using Microsoft Exchange Web Services (EWS) API
  • Compatible with Exchange 2010 SP2+ and Office 365
  • Full-featured calendar
  • Local SQLite database for fast searching of emails
  • Exchange Global Address List (GAL)
  • Integrated task manager
  • Folder management
  • Conversation view
  • Automatic categorization of emails into Actionable and FYI inboxes
  • OAuth 2.0 authentication
  • Corporate SSO providers (such as Okta)
  • Anonymously rate the quality of emails that you receive[2]

Supported email providers

Hiri supports in-house corporate Microsoft Exchange servers as well as Office 365,,, and

External links


  1. 1.0 1.1
  2. 2.0 2.1 Hiri wants to fix the workplace email problem - by Steve O'Hear, at; published Jun 7, 2016; retrieved June 26, 2017
  4. The Qt-Powered Future of Enterprise E-Mail Case study on Hiri by the Qt Company; published Sep 1, 2016; retrieved June 26, 2017
  5. Get Outlook replacement Hiri for free by Rick Broida at CNET; published Mar 13, 2017; retrieved June 26, 2017
  6. Neat business-focused Hiri email app for Mac gets Office 365-compatibility, Exchange support to follow 9 to 5 Mac review of Hiri; published Jun 23, 2015; retrieved June 26, 2017
  7. 5 of the Best Desktop Email Clients That Don’t Cost a Dime - Email client comparison; published Feb 7, 2017; retrieved June 26, 2017
  8. Hiri – A Desktop Email Client for Microsoft Office365 and Hotmail by Martins D. Okoi at; published May 26, 2017; retrieved June 26, 2017
  9. Top 9 Best Email Clients for Linux by Munif Tanjim at; published Jan 17, 2017; retrieved June 26, 2017
  10. Best Free & Open Source* Linux Emails Clients by; published May 4, 2017; retrieved June 26, 2017
  11. 11 start-ups at Wayra in Dublin pitch to investors by Carmel Doyle at Silicon Republic; published Jun 11, 2013; retrieved June 26, 2017
  12. Hiri Wayra investment retrieved Jun 27, 2017
  13. Wayra Crunchbase - Investments retrieved Jun 27, 2017
  14. Dublin-based Hiri raises $1m in funding as it opens US office by Ciara O'Brien at the Irish Times; published Jun 9, 2016; retrieved June 26, 2017
  15. Hiri introduces their take on the email inbox by Brendan Maynard at Webrazzi; published Jun 22, 2017; retrieved Jun 27, 2017
  16. Bloomberg Research profile retrieved Jun 27, 2017