UniBee
A subscription billing system you can either run yourself for free (it's open source) or pay a flat monthly fee to have hosted for you — without giving up a cut of your revenue the way some billing platforms do.
🔗 Visit UniBee
Description
Most subscription billing platforms charge a percentage of the revenue that flows through them, which becomes an increasingly large bill as a SaaS company grows. UniBee's pitch is fixed, predictable pricing instead: it's open source, so you can self-host it for free, or pay a flat monthly fee ($99-399+) for a managed cloud version — either way, no revenue-share cut, and no lock-in to a single payment gateway.
UniBee handles the full subscription billing loop: flexible pricing models (flat-rate, tiered, usage-based, hybrid), real-time usage metering, automated invoicing with custom templates, prorated upgrades/downgrades, multi-gateway payment processing, global tax automation (VAT/GST), dunning management for failed payments, and revenue analytics (MRR, ARR, churn, LTV). It offers 25+ native integrations plus 3,000+ via Zapier, aimed at SaaS companies that want billing control and data ownership rather than depending entirely on a single vendor's infrastructure.
💬 Our review
The short version: if you're tired of watching your billing provider take a percentage cut as your revenue grows, or you specifically want to avoid vendor lock-in, UniBee's open-source-plus-flat-fee model is a genuinely different value proposition worth checking against your growth projections.
Against Stripe Billing (deeply integrated with the broader Stripe ecosystem, usage-based fees that scale with volume, extremely mature) or Paddle (merchant-of-record model that handles global tax/compliance for you, also percentage-based), UniBee's edge is cost predictability at scale and gateway independence — you're not locked into Stripe or Paddle specifically, and self-hosting is free if you have the engineering capacity to run it. The trade-off is that managing global tax compliance and payment gateway relationships yourself (even with UniBee's tooling) is more operational work than a merchant-of-record like Paddle takes off your plate entirely, and it's a smaller, newer project than Stripe with a correspondingly smaller integration ecosystem. Worth it for a growing SaaS company at the point where percentage-based billing fees are becoming a real cost line; early-stage companies prioritizing zero setup effort may prefer Stripe Billing or Paddle's more turnkey experience.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Auto-hébergé gratuit (open source) ; Cloud Starter 99$/mois, Business 399$/mois, Advanced sur devis — aucune commission sur le revenu
Pros
Open source, auto-hébergeable gratuitement
Prix fixe (pas de commission sur le revenu) contrairement à Stripe/Paddle
Indépendance vis-à-vis d'une seule passerelle de paiement (multi-gateway)
25+ intégrations natives + 3000+ via Zapier
Cons
Gestion de la conformité fiscale mondiale plus manuelle qu'avec un merchant-of-record comme Paddle
Écosystème et communauté plus petits que Stripe
Auto-hébergement demande des ressources d'ingénierie
Moins de recul long terme que les leaders établis