How we evaluate
Data sources
We aggregate and cross-reference data from Wikipedia, Hacker News community discussion, official vendor pricing pages, and public app-store data. Unlike directories that accept paid placement, we run none. All pricing verified within 72 hours. No vendor pays for placement or ranking position.
Update frequency
All pricing is verified within 72 hours. Our system re-checks every tracked tool's pricing, features, and review sources on a fixed schedule. When something changes — pricing, features, ownership — we update and note it on the relevant pages.
Scoring
Where we score, we use objective, reproducible metrics — never one AI judging another. Salman Khan reviews a sample of outputs against a fixed rubric. Human verification is the one input no model can replicate.
Affiliate disclosure
This site contains affiliate links. We earn a commission if you purchase through our links at no extra cost to you.
Independence
Rankings are determined by verified data only. Commission rates are never a ranking factor. Tools with no affiliate programme are ranked exactly the same as tools that pay well.