Incrementality Testing Software
Looking for incrementality testing software aimed at Amazon brands on Meta? Spillmark runs geo holdout tests and reports the sales your ads cause, with a range.
- Geo holdouts planned from your order history
- Design locked before the test starts
- Lift with an uncertainty range, not a single fake-precise number
What you get
Spillmark plans geo holdout tests for Meta ads across US states from your Amazon order history. It shows holdout share, length, smallest detectable effect and expected cost before you approve a pause.
Starter is $49 a month for brands spending up to $3k on Meta. Growth raises the spend cap and test limits. Dashboard alone is $19 if you only need profit first.
How results stay honest
The test design is locked with a hash before the test starts. Results go on an append-only ledger. When a result is too uncertain to call, Spillmark says so.
When this fits
Choose Spillmark when your question is Amazon orders caused by Meta, not a full-enterprise MMM stack. Enterprise geo suites still make sense for multi-channel global brands; one clear holdout often fits a focused Amazon seller.
Questions
- Is this the same as Meta conversion lift?
- No. Meta lift studies count outcomes Meta can see. Spillmark counts Amazon orders by ship-to state while Meta is paused in some states.
- Do agents pause ads for me?
- Not on its own. Agents plan the test and show you what to change. Nothing changes without your approval.
- Where is the method?
- See how lift is calculated on spillmark.com/how-lift-is-calculated for the formulas and error range.
Try Spillmark
Start for $0. Measure which Meta ads make you money on Amazon. You approve every move.
Start a 7-day trial for $0