Switch from Fospha to Causality Engine
Fospha uses impression-based MMM + MTA hybrid. Causality Engine uses causal inference on your GA4 export. There is nothing to migrate: the first read takes 1–2 minutes, and you can run both side by side.
€99 once, excl. VAT. Keep Fospha running while you compare.
Fospha and Causality Engine, side by side.
| Compared on | Fospha | Causality Engine |
|---|---|---|
| Price | $1,500/mofospha.com/pricing, read | €99 one-timeExcl. VAT |
| Pricing model | Lite $1,500/mo (€1,300/mo) for $100k–$500k monthly media spend; Pro $2,000/mo plus a share of media spend; Enterprise via sales | €99 per read, or Pro at €299 a month |
| Method | Impression-based MMM + MTA hybrid | Causal inference on a GA4 export |
| Setup | 2–4 weeks | GA4 export upload, about 2 minutes |
| Pixel | No | No |
Competitor pricing is each vendor's publicly listed pricing as read on the date shown, and it changes without notice: verify on the vendor's own site before relying on it. Vendors without a public price are marked as such. Comparisons set Causality Engine's one-time €99 analysis against subscription models.
How to switch, in five steps.
No cancellation required yet
Keep Fospha running. Causality Engine reads your GA4 CSV export, so nothing conflicts and no data moves between the two.
Upload your GA4 CSV (no integration required)
Export 12 months or more of GA4 data and upload it. Longer reads better. No OAuth, no pixel, no code, no DNS changes. Shopify native is on the roadmap.
Run your first analysis
What each channel caused, next to last-click, with a data-health score on each, 1–2 minutes after the upload. Compare it with what Fospha was telling you.
Evaluate side by side
Run both for a month and compare them channel by channel. Where they disagree is where a budget decision is at stake.
Cancel Fospha when ready
Only if the side-by-side says you should. Nothing in Causality Engine depends on Fospha being gone.
Keep reading
Four named Dutch brands and our own store, with the figures they let us publish: the case studies.
GA4 export uploadNo pixel1–2 minutes to a first read30-day refund, no questions asked
Your platforms guess.
We run the math.
Upload a GA4 export and see what each channel caused, next to last-click, in 1–2 minutes. The read is yours to keep.
Free, in your browser: your file is not uploaded. The full read is €99, refundable within 30 days. Prices exclude VAT.
Or book a 30-min call.