UniBee

UniBee combines subscription billing with usage metering, invoicing, and revenue analytics. It is best suited to SaaS and AI businesses that need flexible billing models and can either manage a self-hosted deployment or pay for cloud service. Its breadth is compelling, but the free edition requires manual setup and managed plans start at $99 per month.

Overview

UniBee handles one-time purchases, recurring subscriptions, usage-based and tiered pricing, promotions, and flexible billing frequencies. That range can support businesses mixing fixed plans with charges tied to customer consumption. Its gateway-agnostic design and choice of self-hosted or managed cloud deployment offer useful flexibility, though the free self-hosted edition demands setup work rather than providing a ready-to-use cloud service.

Key features

Usage metering can track API calls, storage, compute time, or custom metrics and bill customers according to consumption. This is a practical fit for SaaS and AI products where costs or customer value vary with usage; businesses with only straightforward flat subscriptions may not need that breadth. Subscription management covers trials, add-ons, pauses, plan changes, upgrades, downgrades, and lifecycle automation. Proration controls, dunning automation, multi-currency billing, and a customer billing portal round out the subscription operations.

UniBee can generate invoices automatically, customize templates, handle taxes, and deliver invoices by email or as PDF downloads. Payment support includes gateways such as Stripe and PayPal, with routing and fallback options. More than 25 integrations are named, including Mixpanel, MailChimp, Hubspot, Twilio, Xero, QuickBooks, TaxJar, Payssion, and Zapier. Revenue analytics track MRR, ARR, churn, and customer lifetime value, with reports that can be exported or integrated with BI tools.

The platform can be run as a managed cloud service or self-hosted using its open-source billing engine; Advanced also offers on-prem deployment. UniBee states that it uses organizational safeguards, security measures, and encrypted connections when personal data is involved. It charges fixed pricing without a percentage-of-revenue fee or hidden platform fees, a useful distinction for businesses evaluating billing costs.

Pricing

The Open-source plan costs free. It is self-hosted and customizable, but requires manual setup and includes community support only. It suits teams with the technical capacity to operate their own billing engine; it is not the choice for organizations seeking managed hosting or dedicated support.

Starter costs $99 a month and includes cloud hosting, core billing, built-in financial analytics, advanced integrations, community-level support, and up to five billing admins. It is the entry point for teams wanting managed service, though the five-admin cap and community support may constrain larger or support-intensive operations.

Business costs $399 a month and raises the limit to 20 billing admins while adding dedicated technical support. It otherwise includes cloud hosting, core billing, built-in financial analytics, and advanced integrations. That makes it the more suitable managed tier for larger billing teams that need direct technical support; smaller teams may not need the jump from Starter.

Advanced has custom pricing. It adds custom admin roles, dedicated support, and a choice of cloud or on-prem deployment, alongside core billing, analytics, advanced integrations, and custom deployment. It is aimed at organizations needing deployment or role flexibility beyond the fixed tiers. A free trial is available, but its length and terms are not given.

Platforms

UniBee supports API access, self-hosted deployment, and the web. The choice between self-hosting and cloud hosting lets technical teams retain operational control or avoid running the billing engine themselves.

Who it's for

UniBee is aimed at international subscription businesses, from mid-market SaaS and AI companies to established enterprises. It is strongest for teams combining subscription and usage-based charges, or needing lifecycle automation, multiple gateways, and revenue reporting in one platform. A business that wants a free, managed cloud plan or does not need billing beyond simple recurring charges should consider a narrower alternative.

Pros and cons

• Broad billing coverage: One-time, recurring, tiered, and usage-based models can serve products with mixed pricing structures.
• Deployment choice: Self-hosting is free, while paid plans offer cloud hosting and Advanced adds on-prem deployment.
• Operational depth: Metering, subscription lifecycle tools, automated invoicing, dunning, and revenue analytics reduce the need to piece together separate billing functions.
• Managed service has a meaningful entry price: Cloud hosting starts at $99 a month, and the free edition requires manual setup.
• Support varies by tier: Open-source support is community-only, Starter remains community-level, and dedicated technical support begins with Business.

Alternatives

Kill Bill is another freemium option with a self-hosted open-source core and full control of infrastructure and data, making it worth considering when infrastructure control is the priority.

Lago offers a free, AGPLv3-licensed self-hosted open-source plan, so it is an alternative for teams seeking that licensing and deployment model.

PayWhirl has free plans with a 3% transaction charge, so it is an alternative to compare if a no-cost starting plan matters more than UniBee's fixed-price model.

Billsby starts at $45 a month and includes usage billing, but adds 0.4% on revenue above $15,000 per month; compare it if a lower starting subscription price is the priority and that revenue fee suits your costs.

Churn Buster offers recovery analytics on its free Measure plan and a dunning or cancel-flows plan starting at $269 a month, making it relevant when payment recovery is the central need rather than broad billing operations.

FOSSBilling is free, open-source software for self-hosting, an option to consider for teams looking for a free self-hosted billing platform.

GetPaidHQ has a free MIT-licensed self-hosted plan with fixed, usage-based, and hybrid pricing, built-in dunning and invoicing, and support for bringing your own gateway; it is a close alternative for teams seeking those capabilities without a paid platform plan.

Pabbly Subscriptions has a free plan capped at 50 customers and a $14.00-per-month Standard plan, making it worth comparing for businesses whose customer count fits that free tier or that want a lower stated paid entry price.

Browse Subscription Billing Software for more billing options, or Dunning Management Software if payment recovery is the main requirement.

Verdict

Choose UniBee if your subscription business needs usage metering alongside subscription lifecycle management, invoicing, and analytics, and you value a choice of self-hosted, cloud, or on-prem deployment. Its main advantage is the breadth of billing operations in one platform; its main drawback is that managed hosting costs at least $99 per month, while the free route requires manual setup and community-level support.