# 5 Best Open Source Alternatives for June

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

Looking for the best open source alternative for June? Compare 5 verified free and open source alternatives to June (PostHog, OpenReplay, Countly) with license details, self-hosting requirements, and practical trade-offs.

## June Overview & Subscription Cost
- **Product**: June
- **Category**: [analytics](https://caniforkit.com/category/analytics)
- **Paid Subscription Price**: $35/month per seat
- **1-Seat Annualized Cost**: $420/year
- **5-Person Team Annualized Cost**: $2,100/year
- **10-Person Team Annualized Cost**: $4,200/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 June or rebuilding it from scratch, deploy one of the 5 battle-tested open-source alternatives like PostHog.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [PostHog](https://caniforkit.com/fork/posthog) | Open Source | MIT | Self-host | ★ 40.7k | [Compare vs June](https://caniforkit.com/vs/june-vs-posthog) |
| [OpenReplay](https://caniforkit.com/fork/openreplay) | Open Source | AGPL-3.0 | Self-host | ★ 13.1k | [Compare vs June](https://caniforkit.com/vs/june-vs-openreplay) |
| [Countly](https://caniforkit.com/fork/countly) | Open Source | Open Source | Self-host | ★ 5.9k | [Compare vs June](https://caniforkit.com/vs/june-vs-countly) |
| [Aptabase](https://caniforkit.com/fork/aptabase) | Open Source | Open Source | Self-host | ★ 1.9k | [Compare vs June](https://caniforkit.com/vs/june-vs-aptabase) |
| [Trench](https://caniforkit.com/fork/trench) | Open Source | Open Source | Self-host | ★ 1.7k | [Compare vs June](https://caniforkit.com/vs/june-vs-trench) |

## In-Depth Alternative Profiles

### PostHog
- **Fork Page**: [PostHog Profile](https://caniforkit.com/fork/posthog)
- **Head-to-Head Comparison**: [June vs PostHog](https://caniforkit.com/vs/june-vs-posthog)
- **Official Website**: https://posthog.com
- **Source Code Repository**: https://github.com/posthog/posthog
- **License**: MIT
- **Runs On**: Self-host
- **GitHub Stars**: 40.7k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: mobile, web, they host it
- **Summary**: All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.
- **The Catch vs June**: Its kitchen-sink product is heavier, while Amplitude's core product-analytics workflows and governance are more refined.
- **Installation**: Create a PostHog Cloud project or use the hobby self-host script on a Linux server
- **Setup**: None for hosted signup; self-hosting is an unsupported, resource-heavy multi-service stack requiring serious operations work
- **Data Storage**: The self-hosted stack splits analytics, transactions, queues and recordings across ClickHouse, PostgreSQL, Kafka, Redis and object storage; cloud data lives in PostHog's managed regions

### OpenReplay
- **Fork Page**: [OpenReplay Profile](https://caniforkit.com/fork/openreplay)
- **Head-to-Head Comparison**: [June vs OpenReplay](https://caniforkit.com/vs/june-vs-openreplay)
- **Official Website**: https://openreplay.com
- **Source Code Repository**: https://github.com/openreplay/openreplay
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 13.1k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: mobile, web, self-hosted, self-host, real ops
- **Summary**: Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.
- **The Catch vs June**: It is developer-debugging-first, harder to operate and weaker for turnkey form analytics, feedback and UX-research workflows.
- **Installation**: Create a hosted account or deploy to a public Ubuntu 24.04 server with the CLI or Helm; Docker Compose is experimental
- **Setup**: Free self-hosting needs a public x86 Ubuntu server, domain and TLS, with at least about 2 vCPU, 8 GB RAM and 50 GB storage
- **Data Storage**: Replay and telemetry data live in the deployment's databases and object storage, or in OpenReplay's managed cloud when using the hosted service

### Countly
- **Fork Page**: [Countly Profile](https://caniforkit.com/fork/countly)
- **Head-to-Head Comparison**: [June vs Countly](https://caniforkit.com/vs/june-vs-countly)
- **Official Website**: https://countly.com/
- **Source Code Repository**: https://github.com/countly/countly-server
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 5.9k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: All-in-one analytics platform for mobile, web, and desktop apps. Track user behavior, monitor performance, and optimize your product.
- **The Catch vs June**: Requires self-hosting setup, updates, and server maintenance compared to managed Google Analytics.
- **Installation**: Clone https://github.com/countly/countly-server 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.

### Aptabase
- **Fork Page**: [Aptabase Profile](https://caniforkit.com/fork/aptabase)
- **Head-to-Head Comparison**: [June vs Aptabase](https://caniforkit.com/vs/june-vs-aptabase)
- **Official Website**: https://aptabase.com
- **Source Code Repository**: https://github.com/aptabase/aptabase
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 1.9k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open-source, self-hostable analytics platform for mobile and desktop apps, prioritizing user privacy and data control.
- **The Catch vs June**: Requires self-hosting setup, updates, and server maintenance compared to managed June.
- **Installation**: Clone https://github.com/aptabase/aptabase 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.

### Trench
- **Fork Page**: [Trench Profile](https://caniforkit.com/fork/trench)
- **Head-to-Head Comparison**: [June vs Trench](https://caniforkit.com/vs/june-vs-trench)
- **Official Website**: https://trench.dev
- **Source Code Repository**: https://github.com/FrigadeHQ/trench
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 1.7k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.
- **The Catch vs June**: Requires self-hosting setup, updates, and server maintenance compared to managed June.
- **Installation**: Clone https://github.com/FrigadeHQ/trench 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.

## Frequently Asked Questions

### What is the best free alternative to June?
The top free alternative to June is PostHog (open source, MIT). All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product. Other popular June replacements include OpenReplay, Countly, Aptabase.

### How much does switching from June to a free alternative save?
June starts at $35/month per seat ($420/year). Switching a 5-person team to a free alternative like PostHog saves $2,100 per year in software subscription fees.

### What is the catch when switching away from June?
While PostHog replaces core June features without subscription fees, the real-world trade-off is: Its kitchen-sink product is heavier, while Amplitude's core product-analytics workflows and governance are more refined.

## Related

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