# 3 Best Open Source Alternatives for Sessions

Canonical: https://caniforkit.com/sessions
Last updated: 2026-11-07

Looking for the best open source alternative for Sessions? Compare 3 verified free and open source alternatives to Sessions (Cal.com, Rallly, Easy!Appointments) with license details, self-hosting requirements, and practical trade-offs.

## Sessions Overview & Subscription Cost
- **Product**: Sessions
- **Category**: [scheduling](https://caniforkit.com/category/scheduling)
- **Paid Subscription Price**: $10/month per seat
- **1-Seat Annualized Cost**: $120/year
- **5-Person Team Annualized Cost**: $600/year
- **10-Person Team Annualized Cost**: $1,200/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Sessions or rebuilding it from scratch, deploy one of the 3 battle-tested open-source alternatives like Cal.com.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [Cal.com](https://caniforkit.com/fork/cal-com) | Open Source | Open Source | Self-host | ★ 49.8k | [Compare vs Sessions](https://caniforkit.com/vs/sessions-vs-cal-com) |
| [Rallly](https://caniforkit.com/fork/rallly) | Open Source | Open Source | Self-host | ★ 5.4k | [Compare vs Sessions](https://caniforkit.com/vs/sessions-vs-rallly) |
| [Easy!Appointments](https://caniforkit.com/fork/easy-appointments) | Open Source | GPL-3.0 | Self-host | ★ 4.5k | [Compare vs Sessions](https://caniforkit.com/vs/sessions-vs-easy-appointments) |

## In-Depth Alternative Profiles

### Cal.com
- **Fork Page**: [Cal.com Profile](https://caniforkit.com/fork/cal-com)
- **Head-to-Head Comparison**: [Sessions vs Cal.com](https://caniforkit.com/vs/sessions-vs-cal-com)
- **Official Website**: https://cal.diy/
- **Source Code Repository**: https://github.com/calcom/cal.diy
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 49.8k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.
- **The Catch vs Sessions**: Requires self-hosting setup, updates, and server maintenance compared to managed Sessions.
- **Installation**: Clone https://github.com/calcom/cal.diy or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Rallly
- **Fork Page**: [Rallly Profile](https://caniforkit.com/fork/rallly)
- **Head-to-Head Comparison**: [Sessions vs Rallly](https://caniforkit.com/vs/sessions-vs-rallly)
- **Official Website**: https://rallly.co
- **Source Code Repository**: https://github.com/lukevella/rallly
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 5.4k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
- **The Catch vs Sessions**: Requires self-hosting setup, updates, and server maintenance compared to managed Sessions.
- **Installation**: Clone https://github.com/lukevella/rallly or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Easy!Appointments
- **Fork Page**: [Easy!Appointments Profile](https://caniforkit.com/fork/easy-appointments)
- **Head-to-Head Comparison**: [Sessions vs Easy!Appointments](https://caniforkit.com/vs/sessions-vs-easy-appointments)
- **Official Website**: https://easyappointments.org
- **Source Code Repository**: https://github.com/alextselegidis/easyappointments
- **License**: GPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 4.5k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, self-host, real ops
- **Summary**: Self-hosted appointment scheduling solution with Google Calendar sync, customizable workflows, and no monthly fees. Perfect for healthcare, salons, and service businesses.
- **The Catch vs Sessions**: It has no managed hosting, built-in payment stack or turnkey SMS service, and the owner must maintain PHP and MySQL.
- **Installation**: Upload the release to PHP hosting, create a MySQL database, edit the configuration and run the web installer; Docker is optional
- **Setup**: PHP and MySQL hosting with database permissions; Google Calendar sync additionally requires a Google Cloud OAuth application
- **Data Storage**: Bookings, providers, services and customers live in MySQL; configuration and logs live on the web server, with optional Google Calendar synchronization

## Frequently Asked Questions

### What is the best free alternative to Sessions?
The top free alternative to Sessions is Cal.com (open source, Open Source). Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API. Other popular Sessions replacements include Rallly, Easy!Appointments.

### How much does switching from Sessions to a free alternative save?
Sessions starts at $10/month per seat ($120/year). Switching a 5-person team to a free alternative like Cal.com saves $600 per year in software subscription fees.

### What is the catch when switching away from Sessions?
While Cal.com replaces core Sessions features without subscription fees, the real-world trade-off is: Requires self-hosting setup, updates, and server maintenance compared to managed Sessions.

## Related

- [scheduling Software Category Hub](https://caniforkit.com/category/scheduling)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)