Twake Calendar

Spec sheet

What it does

Twake Calendar is a privacy-focused team calendar for scheduling meetings, coordinating availability and collaborating within Twake Workplace.Read 14 Oct 2026 · twake.app

Purpose

Twake Calendar is an open-source calendar for teams and organizations to plan meetings, coordinate schedules, and keep data under their control.Read 11 Oct 2026 · twake.app

Deployment

The product is offered as SaaS and as software that organizations can self-host.Read 14 Oct 2026 · twake.app

Free plan

YesRead 22 Sep 2026 · twake.app

Integrations

The calendar integrates with Twake Mail, Chat, Drive, and Visio for invitations, event sharing, video meetings, and file attachments.Read 11 Oct 2026 · twake.app

Mobile apps

ios and androidRead 22 Sep 2026 · twake.app

Headquarters

Issy-les-Moulineaux, FranceRead 28 Sep 2026 · twake.app

Founded

2000Read 28 Sep 2026 · twake.app

Availability booking

Users can publish availability slots so others can reserve meetings through a booking grid.Read 14 Oct 2026 · twake.app

CalDAV and iCalendar

Twake Calendar supports CalDAV synchronization plus importing and exporting iCalendar .ics files.Read 14 Oct 2026 · twake.app

Calendar codebase

The public calendar frontend is a React and TypeScript monorepo with private and public applications and CalDAV/CardDAV integration.Read 14 Oct 2026 · github.com

Calendar licence

The Twake Calendar frontend repository is published under the GNU Affero General Public License 3.0.Read 14 Oct 2026 · github.com

Calendar sync

Twake Calendar supports CalDAV and importing or exporting calendars in iCalendar (.ics) format.Read 11 Oct 2026 · twake.app

Delegation

Calendar owners can authorize trusted colleagues to manage calendars on their behalf.Read 14 Oct 2026 · twake.app

Desktop and mobile

Twake's download page lists Windows, Intel Mac, Apple Silicon Mac, GNU/Linux, Google Play, and the App Store downloads.Read 11 Oct 2026 · twake.app

Developer API

Twake documentation describes an API for creating applications, authenticating with Postman, sending messages and triggering commands.Read 14 Oct 2026 · doc.twake.app

Documentation and support

The help center contains calendar guides for creating, editing, deleting, recurring and duplicating events, plus mobile synchronization help.Read 14 Oct 2026 · support.twake.app

Encryption statement

Twake states that Workplace messages and attachments use zero-access encryption, with decryption keys kept on user devices.Read 14 Oct 2026 · twake.app

Events and meetings

Users can create events, invite participants, share video conferences, and manage their schedule in one place.Read 11 Oct 2026 · twake.app

Files and notes

Calendar events can access Twake Drive documents and Twake notes.Read 14 Oct 2026 · twake.app

Google Play app

Twake Sync ICS synchronizes Webcal and iCalendar feeds with Twake Workplace and Android Calendar, and reports no third-party data sharing and encryption in transit.Read 14 Oct 2026 · play.google.com

Independent review limit

It's FOSS reported slower login performance and said the hosted free plan then limited users to one workspace and excluded guest collaborators.Read 14 Oct 2026 · itsfoss.com

Independent review praise

It's FOSS highlighted document storage, Kanban tasks, shared calendars, video conferencing, collaborative Office editing and cross-platform clients.Read 14 Oct 2026 · itsfoss.com

Independent security criticism

It's FOSS said free and standard users lacked two-factor authentication in its 2021 review.Read 14 Oct 2026 · itsfoss.com

Limit: iOS reliability

Apple reviewers reported black screens, incomplete functionality and problems with mail access on iOS.Read 14 Oct 2026 · apps.apple.com

Limit: mobile uploads

Apple reviewers complained that the mobile app limits photo uploads and cannot upload folders.Read 14 Oct 2026 · apps.apple.com

Limit: pricing and updates

A G2 reviewer identified price and update frequency as drawbacks.Read 14 Oct 2026 · g2.com

Limit: third-party integrations

A G2 reviewer said Twake could benefit from more third-party app integrations.Read 14 Oct 2026 · g2.com

Maker company

LinkedIn lists Twake as a partnership founded in 2016 with 11–50 employees and headquarters in Issy-les-Moulineaux, France.Read 14 Oct 2026 · linkedin.com

Meetings

Users can create events, invite participants, share video conferences and manage schedules from the calendar.Read 14 Oct 2026 · twake.app

Owner and developer

Twake identifies LINAGORA as the organization powering development and the Google Play listing names LINAGORA as developer.Read 14 Oct 2026 · twake.app

Plugins and connectors

The developer portal lists Jitsi, Giphy, SimplePoll, Webhooks and n8n integrations, while saying the documentation is incomplete.Read 14 Oct 2026 · doc.twake.app

Praise: European privacy

GetApp describes Twake as GDPR compliant, hosted in Europe and designed for organizations seeking data sovereignty.Read 14 Oct 2026 · getapp.co.uk

Praise: unified collaboration

G2 reviewers praise the combination of chat, file sharing and task management in one platform.Read 14 Oct 2026 · g2.com

Privacy and control

The maker says open-source code and self-hosting let organizations inspect the software and retain control over their infrastructure and data.Read 11 Oct 2026 · twake.app

Rating on Apple App Store

3.4 out of 5 from 18 ratingsRead 14 Oct 2026 · apps.apple.com

Rating on G2

5.0 out of 5 from 5 reviewsRead 14 Oct 2026 · g2.com

Rating on GetApp

4.1 out of 5 from 7 reviewsRead 14 Oct 2026 · getapp.co.uk

Scaling guidance

The guide describes approximately 12 CPUs and 32 GB RAM for up to 500 users on one machine before moving to multiple nodes.Read 14 Oct 2026 · doc.twake.app

Scheduling

Users can share availability and let others reserve time slots from an availability grid.Read 11 Oct 2026 · twake.app

Scheduling links

YesRead 22 Sep 2026 · twake.app

Security details

The calendar page describes calendar data as securely hosted, while its zero-access encryption details specifically refer to Twake Chat messages and attachments.Read 11 Oct 2026 · twake.app

Security statement

Twake says calendar data is securely hosted and that key code is open for transparency and self-hosting.Read 14 Oct 2026 · twake.app

Self-host installation

The official installation guide uses Docker Compose and starts Twake from the GitHub source repository on port 3000.Read 14 Oct 2026 · doc.twake.app

Shared calendars

Calendars can be shared with teammates or external users using view, edit or management permissions.Read 14 Oct 2026 · twake.app

Standalone or suite

Twake Calendar is offered as an independent application or as part of the Twake Workplace ecosystem.Read 14 Oct 2026 · twake.app

Status

Twake's public status page reported all services online when last updated on May 13, 2026.Read 14 Oct 2026 · status.twake.app

Support limit

Twake says it does not provide official technical support for self-hosting setups and points users to its community for assistance.Read 11 Oct 2026 · twake.app

Supported downloads

Twake provides desktop downloads for Intel Mac, Apple Silicon Mac, GNU/Linux and Windows, plus iOS and Android links.Read 14 Oct 2026 · twake.app

System requirements

The documentation recommends at least 2 CPUs and 4 GB RAM for roughly 20–50 users with Elasticsearch disabled.Read 14 Oct 2026 · doc.twake.app

Team schedules

The product combines calendars, meetings and video conferencing in one collaborative workspace.Read 14 Oct 2026 · twake.app

Time zones

The calendar supports scheduling across time zones and displays availability for international coordination.Read 14 Oct 2026 · twake.app

Twake integrations

The calendar integrates with Twake Mail, Chat, Drive and Visio for invitations, event sharing, calls and attachments.Read 14 Oct 2026 · twake.app

Video meeting support

YesRead 22 Sep 2026 · twake.app

Video meetings

Events can launch or join Twake Visio video meetings directly.Read 14 Oct 2026 · twake.app

Plans and prices

Every Twake Calendar plan and price →

Where Specifiction places it

• Calendar apps#8 of 1949.3