FiscaLLM vs Weckr

Both help you see what AI costs per user. The difference is what they compare it with, what they cost, and where your data lives. Checked on 2026-11-02 from Weckr's public page; we make FiscaLLM, so tell us if anything about Weckr is out of date.

	FiscaLLM	Weckr
What it is	AI cost per user joined to real revenue: margin per user, plan and free trial	Hosted AI cost tracking per user with spending caps and runaway-loop alerts
Price	Free. Hosted with fair use (100,000 events per app per month), or self-hosted with no limit	Hobby free (50,000 requests a month), Pro $49 a month (1M requests a month)
Hosting	Hosted or self-hosted	Hosted
Open source	Yes, MIT (server, dashboard and SDKs)	SDKs are MIT; the service is hosted
Revenue used for margin	Real revenue from RevenueCat (one-click connect and import), Stripe (webhook and 12-month import, beta, USD), CSV upload, or a revenue API	Margin uses plan prices you set in the SDK; its site does not mention importing payments from Stripe or RevenueCat

Where Weckr is strong

Spending caps that block or downgrade to a cheaper model
Runaway-loop detection with Slack alerts
MCP server and integration guides for LangChain, CrewAI and the Vercel AI SDK

Pick Weckr if you want a hosted product and are happy to estimate revenue from plan prices rather than real payments.

Why teams pick FiscaLLM

Free and open source. MIT, with the server, dashboard and SDKs in one repository. No per-event or per-seat price.
Self-hostable. Run it on your own Vercel and Postgres so revenue and usage data never leave your infrastructure.
Real revenue, from where you bill. One-click RevenueCat for App Store and Google Play apps, Stripe with 12 months of history, CSV upload, or a revenue API.
Margin per user, plan and free trial, with alerts when a paying user starts losing you money, and optional per-user caps.
Never sees prompts. Only user IDs, model names and token counts. Reporting never blocks or slows your app.

Open the demo dashboard (sample data, no sign-up), read the docs, or start free. All comparisons: AI cost per user tools compared.

Questions

Is FiscaLLM a free Weckr alternative?

Yes. FiscaLLM is free and open source (MIT): use the hosted service at fiscallm.com or run your own copy. Weckr: Hobby free (50,000 requests a month), Pro $49 a month (1M requests a month).

Can I use FiscaLLM and Weckr together?

Yes. FiscaLLM only needs one tracking call after each AI request and a revenue source, so it runs next to other tools.