OwnerLoop vs Spillmark

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OwnerLoop compared with Spillmark
Detail	OwnerLoop	Spillmark
What it does	Sell more replacement parts on Shopify by helping customers find compatible filters, accessories and spare parts directly in your store.	Run your Amazon store on autopilot with AI agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Not given	Paid
Pricing	Not given	Dashboard $19/mo, Starter $49/mo (for brands spending up to $3k a month on Meta), Growth $199/mo (for brands spending over $3k a month on Meta)
Key features	Compatibility catalog mapping products to parts Storefront theme blocks displaying compatible items on product pages Parts finder for customers to select owned products and discover compatible parts Staff lookup for compatibility searches Compatibility mappings persist after app uninstall Works with all Shopify themes	Holdout testing for measuring true ad lift with statistical ranges Profit dashboard showing earnings by channel after fees and costs Read-only access with no automatic changes to ad accounts Locked experiment designs that cannot be edited after starting Pre-test checks showing whether tests can deliver clear answers Alert notifications for detected problems and issues Branded Amazon PPC tests on Growth plan
What makes it different	Single compatibility catalog reused across storefront, parts finder, and staff lookup Keeps compatibility data separate from Shopify product catalog Reduces friction in aftermarket purchases	Measures true sales lift causation, not platform attribution credit Built by and tested on an actual Amazon seller's own brand Tests locked before starting with results never edited after Data never shared, pooled or benchmarked with other brands Read-only access by default with full user approval for all changes
Ships internationally	Not given	Not given
Sells online	Not given	Not given
Physical shop	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	42 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	13	0
Referring domains (Majestic)	1	0

3 details filled in for both companies.

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