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UniBee

Free plan Open source APISelf-hostedWeb

What UniBee is

UniBee is an open-source subscription billing platform offered as a self-hosted billing engine or a managed cloud service. It supports one-time purchases, recurring and usage-based billing, tiered pricing, promotions, and flexible billing frequencies. Its usage metering can track API calls, storage, compute time, or custom metrics and bill against actual usage. Subscription management includes plan changes, pauses, upgrades, downgrades, trials, add-ons, and lifecycle automation.

UniBee can generate invoices, customize invoice templates, handle taxes, and send invoices by email or provide PDF downloads. It supports multiple payment gateways, including Stripe and PayPal, with routing and fallback options. The site lists more than 25 integrations, including Mixpanel, MailChimp, Hubspot, Twilio, Xero, QuickBooks, TaxJar, and Zapier. Revenue analytics cover MRR, ARR, churn rate, and customer lifetime value, with reports available for export or connection to BI tools. The free Open-source plan is self-hosted, requires manual setup, and includes community support. Starter costs $99 per month and Business costs $399 per month; Advanced supports cloud or on-prem deployment with pricing by conversation. UniBee describes its intended users as international subscription businesses, from mid-market SaaS and AI companies to established enterprises.

Who it suits

UniBee suits international subscription businesses that need recurring, usage-based, or one-time billing alongside subscription lifecycle tools. Its plans span a manually configured, community-supported self-hosted option and managed cloud plans with higher billing-admin limits and dedicated technical support.

What it does well

Supports one-time, recurring, and usage-based billing.
Metering can track API calls, storage, compute time, or custom metrics.
Invoice tools include tax handling, templates, email, and PDF downloads.
Lists more than 25 integrations.
Analytics track MRR, ARR, churn, and customer lifetime value.
Offers self-hosted, cloud, and Advanced on-prem deployment.

What to know first

The free Open-source plan requires manual setup.
Open-source support is community-only.
Starter is limited to 5 billing admins.
Business is limited to 20 billing admins.

Limits

The free Open-source plan is self-hosted, requires manual setup, and provides community support. Starter costs $99 per month and allows up to 5 billing admins; Business costs $399 per month and allows up to 20. Advanced pricing is by conversation.

Plans

Plan	Billed and limits	Price
Open-source	$0 / month · Self-hosted · customizable · manual setup · community-only support	Free
Business	$399/monthly · Up to 20 billing admins · cloud-hosted · core billing · financial analytics · advanced integrations · dedicated technical support	$399 a month
Starter	$99/monthly · Up to 5 billing admins · cloud-hosted · core billing · financial analytics · advanced integrations · community support	$99 a month
Advanced	Let’s chat · Custom admin roles · cloud or on-prem deployment · core billing · analytics · advanced integrations · dedicated support · custom deployment	On request

As unibee.dev lists them, read 20 Oct 2026. The maker's own page has the final word.

Getting started

Visit the UniBee website.
Choose the self-hosted Open-source edition or a managed cloud plan.
For the Open-source edition, arrange for manual setup.
Select Starter at $99 per month or Business at $399 per month if you want a listed paid cloud plan.
Contact UniBee to discuss the Advanced plan and its cloud or on-prem deployment.

Verdict

Choose UniBee if you need subscription billing with usage metering, invoice handling, and a choice of self-hosted or managed deployment. The free edition requires manual setup and community support; paid cloud plans start at $99 per month, while Advanced pricing is available by conversation.

Questions

Is UniBee free?

Yes. Its Open-source plan costs $0.00 per free and is self-hosted, customizable, and manually set up, with community support.

What do UniBee's paid plans cost?

Starter is $99 per month and Business is $399 per month. Advanced pricing is available by conversation.

Can UniBee bill based on usage?

Yes. Its metering can track API calls, storage, compute time, or custom metrics for usage-based billing.

Can UniBee be self-hosted?

Yes. The Open-source edition is self-hosted, and the Advanced plan offers cloud or on-prem deployment.

Which payment gateways and integrations does UniBee list?

It names Stripe and PayPal as supported payment gateways and lists more than 25 integrations, including Mixpanel, MailChimp, Hubspot, Twilio, Xero, QuickBooks, TaxJar, and Zapier.

What support comes with the plans?

Open-source has community support, Starter includes community-level support, and Business includes dedicated technical support. Advanced includes dedicated support.

Facts from UniBee's own pages

Analytics: Dashboards report MRR, ARR, churn, lifetime value and other revenue metrics with export capability. · unibee.dev, 20 Oct 2026
Billing models: It supports one-time purchases, recurring billing, usage-based billing, tiered pricing, promotions, and flexible billing frequencies. · unibee.dev, 30 Sept 2026
Company size: LinkedIn lists UniBee as privately held with 2–10 employees. · linkedin.com, 20 Oct 2026
Coupons: Coupon rules support percentage or fixed discounts, expiration dates, usage limits and product or plan targeting. · unibee.dev, 20 Oct 2026
Deployment: Customers can use a fully managed cloud deployment or self-host the open-source billing engine; the Advanced plan also offers on-prem deployment. · unibee.dev, 30 Sept 2026
Documentation depth: The documentation includes API reference pages with cURL, Python, JavaScript, PHP, Go, Java and Ruby examples plus schemas and sandbox URLs. · docs.unibee.dev, 20 Oct 2026
Dunning: Lifecycle automation includes trial conversion, renewal reminders, intelligent retries and dunning workflows. · unibee.dev, 20 Oct 2026
Entitlements: Entitlements can be assigned to plans or customers and checked through real-time API calls. · unibee.dev, 20 Oct 2026
External gateway limitation: External Gateway integrations do not process payments inside UniBee; the customer's backend must build and maintain that integration. · unibee.dev, 20 Oct 2026
Free trial: The pricing page offers a free trial link for the Starter and Business plans, but does not state a trial duration. · unibee.dev, 30 Sept 2026
GetApp integrations: GetApp lists Google Analytics 360, Segment, PayPal Checkout, Stripe Billing and Google Pay as integrations. · getapp.com, 20 Oct 2026
Go SDK: The Go client is generated from UniBee's OpenAPI specification and documents API endpoint classes. · github.com, 20 Oct 2026
Headquarters: The official site footer says UniBee is built in Tallinn. · unibee.dev, 20 Oct 2026
Hybrid billing: UniBee combines a subscription base with automated overage charges on one billing flow. · unibee.dev, 20 Oct 2026
Integrations: The site lists more than 25 integrations, including Mixpanel, MailChimp, HubSpot, Twilio, Xero, Stripe, QuickBooks, PayPal and Zapier. · unibee.dev, 20 Oct 2026
Intended users: The subscription management page describes UniBee as built for international subscription businesses and names mid-market SaaS and AI companies through established enterprises as users. · unibee.dev, 30 Sept 2026
Invoicing: The system generates invoices automatically, supports custom templates and taxes, and can email or produce PDF invoices. · unibee.dev, 20 Oct 2026
Legal entity: UniBee's privacy policy identifies the operator as AAA Abmer OÜ, doing business as UniBee. · unibee.dev, 20 Oct 2026
License: The standalone UniBee deployment, API and portals are licensed under GNU AGPLv3. · github.com, 20 Oct 2026
Limit: Capterra reporting: A Capterra hospitality reviewer said reporting customization and filtering could be deeper. · capterra.com, 20 Oct 2026
Limit: G2 regional gateways: One G2 reviewer requested MercadoPago support for Latin American payment methods. · g2.com, 20 Oct 2026
Limit: G2 reporting: Several G2 reviewers want more flexible advanced reporting, custom dashboards and deeper customization. · g2.com, 20 Oct 2026
Metering: Its usage metering can track API calls, storage, compute time, or custom metrics and bill customers based on actual usage. · unibee.dev, 30 Sept 2026
Multi-phase update: An April 2, 2026 product update added multi-stage subscriptions with phase-specific rules, durations and prices. · unibee.dev, 20 Oct 2026

Where UniBee stands on Freedom251

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