Prefinery is the long-running incumbent in developer-first waitlist infrastructure — documented REST API, webhooks, A/B testing, deep segmentation, referral mechanics. The gap is price: the API is gated behind a $199/mo plan. Enlist ships the same developer primitives on a free tier.
Key differences
Prefinery's entry plan ($39/mo) explicitly excludes the API, webhooks, and integrations. The cheapest plan with a usable API is $199/mo. Enlist ships the full REST API, TypeScript SDK, and MCP server on every tier, including free.
Prefinery adds $0.005 per user per month above each plan's included count — a successful launch and a larger invoice are the same event. Enlist pricing is capacity: signups stored, not signups per month. No overage tier exists.
No other tool in this category ships an MCP server. Enlist exposes every operation — create waitlist, add signup, read position — over a hosted MCP endpoint so a coding agent can wire the entire integration in one prompt.
Prefinery offers a 14-day trial and no permanent free tier — you pay before you know whether it fits. Enlist's free plan includes 500 stored signups, one waitlist, and full API access with no time limit and no credit card.
Up to 500 signups on the free tier. Add the MCP server and your agent wires the whole integration in one prompt.