No ATS checker can guarantee interviews. A good checker can help you make your CV clearer, more relevant and easier to scan, but final hiring decisions are made by employers.
Even a strong CV can miss out for reasons outside the document.
Interview guarantees can make CV feedback sound more certain than it really is. The honest promise is improvement guidance, not control over employer decisions.
CV Optimiser deliberately frames results as guidance so users do not over-trust a score or add unsupported claims.
Use the score to decide what to fix next, then apply with a CV that is clearer, more truthful and better matched to the role.