# SOGo

> SOGo is a free, open-source app you can self-host in the groupware & calendars category. SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface. It has 2,171 GitHub stars, is released under the GPL-2.0 license. It is a self-hosted alternative to Google Workspace, Microsoft 365 and Google Calendar.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Alinto/sogo |
| Website | https://www.sogo.nu/ |
| Demo | https://demo.sogo.nu/SOGo/ |
| GitHub stars | 2,171 |
| Forks | 326 |
| Open issues | 0 |
| License | GPL-2.0 |
| License type | Open source |
| Language | Objective-C |
| Docker image | No |
| Platforms | Objective-C |
| Categories | Groupware & Calendars |
| Commits, last 12 months | 99 |
| Last commit | Oct 2, 2026 |
| Latest release | SOGo-5.12.11 (Sep 14, 2026) |
| Created | Sep 18, 2012 |
| Maintenance | Actively maintained |
| Archived | No |

Topics: sogo, objective-c, groupware, angularjs-material

## Install

SOGo installs natively; follow the README at https://github.com/Alinto/sogo.

Need it installed for you? [appsgit installation help](https://appsgit.com/services/install): a fixed quote by email, single app installs from $79.

## SOGo replaces

- [Google Workspace alternatives](https://appsgit.com/alternatives/google-workspace): Google's suite of email, calendar, docs and storage for teams.
- [Microsoft 365 alternatives](https://appsgit.com/alternatives/microsoft-365): Microsoft's subscription suite of Office apps, Exchange mail and Teams chat.
- [Google Calendar alternatives](https://appsgit.com/alternatives/google-calendar): Google's online calendar with sharing and event invites.

## Similar apps in Groupware & Calendars

- [Nextcloud](https://appsgit.com/apps/nextcloud): Access and share your files, calendars, contacts, mail and more from any device, on your terms. (37,003 stars, AGPL-3.0, PHP)
- [Seafile](https://appsgit.com/apps/seafile): File hosting and sharing solution primary for teams and organizations. (15,307 stars, GPL-2.0, C)
- [Colanode](https://appsgit.com/apps/colanode): Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion). (5,158 stars, Apache-2.0, TypeScript, Docker)
- [Radicale](https://appsgit.com/apps/radicale): Simple calendar and contact server with extremely low administrative overhead. (5,087 stars, GPL-3.0, Python)
- [Baïkal](https://appsgit.com/apps/baikal): Lightweight CalDAV and CardDAV server based on sabre/dav. (3,328 stars, GPL-3.0, PHP)
- [Sync-in](https://appsgit.com/apps/sync-in): File storage, syncing, sharing, and collaboration with real-time editing, permission management, and desktop/CLI clients. (1,789 stars, AGPL-3.0, TypeScript, Docker)
- [SabreDAV](https://appsgit.com/apps/sabredav): Open source CardDAV, CalDAV, and WebDAV framework and server. (1,725 stars, BSD-3-Clause, PHP)
- [Keeper.sh](https://appsgit.com/apps/keeper-sh): Calendar syncing tool that pulls and pushes events between calendar sources and destinations via iCal/ICS or OAuth, with support for anonymized busy/free events. (1,376 stars, AGPL-3.0, TypeScript, Docker)

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