SHSelfHostIndex

Thunderbird Appointment vs Pollaris

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
TH Thunderbird Appointment Self-hostable scheduling tool for booking meetings VS PO Pollaris Polling tool to plan, organise and make decisions quickly
FeatureThunderbird AppointmentPollaris
CategoryCalendar & ContactsProject Management & Tasks
LicenseMPL-2.0GPL-3.0-only
LanguagePython
Setup difficultyMediumMedium
Min. RAM512 MB50 MB
Deploymentdocker, sourcebare-metal
GitHub stars★ 547—
First released20232025
ReplacesCalendly, DoodleDoodle, OpenSondage

Why pick each one

Choose Thunderbird Appointment if…

  • Released under the MPL-2.0 license
  • First-class Docker support for quick deployment
  • Written in Python
  • Lightweight — runs in 512 MB RAM
Thunderbird Appointment details

Choose Pollaris if…

  • Released under the GPL-3.0-only license
  • Tiny footprint — runs in 50 MB RAM
Pollaris details

Frequently asked questions

Is Thunderbird Appointment or Pollaris better?

Neither is universally better. Thunderbird Appointment has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Thunderbird Appointment and Pollaris free and open-source?

Yes. Thunderbird Appointment is licensed under MPL-2.0 and Pollaris under GPL-3.0-only. Both can be self-hosted at no software cost.

Can I run Thunderbird Appointment and Pollaris with Docker?

Thunderbird Appointment: yes. Pollaris: check the project docs for container support.

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