FastSpring vs Kill Bill: Which is right for you? (1970)
TL;DR
- Choose FastSpring if you want global taxes and compliance handled for you.
- Choose Kill Bill if keeping fees low matters most.
- Both work for: teams in their respective categories.
FastSpring
5.9% + $0.95 per transaction (or custom rate)
Established MoR for software and SaaS companies. Strong in desktop software, games, and B2B. Higher fees than Paddle but deep feature set.
Kill Bill
Open source: free (self-hosted). Cloud: from $250/month.
Battle-tested open source billing platform. More complex than Lago but more mature. Requires significant technical resources to set up and maintain. Free if self-hosted.
Pricing comparison
Feature comparison
Best for
FastSpring is best for SaaS, software, global, B2B, license keys, web. Kill Bill is best for open source, self hosted, Enterprise, Usage-based pricing, developers, SaaS.
FAQ
Is FastSpring better than Kill Bill?
Neither is universally better. FastSpring is the right pick if you want global taxes and compliance handled for you; Kill Bill wins if keeping fees low matters most.
Which is cheaper, FastSpring or Kill Bill?
Kill Bill ranks higher on fee competitiveness (5/5). FastSpring pricing: 5.9% + $0.95 per transaction (or custom rate). Kill Bill pricing: Open source: free (self-hosted). Cloud: from $250/month..
Can I switch from FastSpring to Kill Bill?
Yes — most subscription and billing tools support migration via CSV import or API. Expect to reconfigure webhooks, paywalls, and entitlements. Check both vendors' migration docs before committing.
Does FastSpring handle sales tax?
Yes. FastSpring handles global sales tax and VAT for you.
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