Claimpath's listing describes rating arithmetic, condition criteria, deadline tracking and filled forms. It also states that the app is not accredited to represent a claimant before VA.
VA's official page explains disability claim filing options, preparation and evidence information, with links into the official application process.
Use official VA information to verify the process you intend to follow, whether or not you use an organizational app. Claimpath's listing describes self-service assistance but does not make it the filing authority or an accredited representative. Free accredited VSO help is also available through VA's representative resources. A browser file manifest neither submits a claim nor chooses the appropriate application or review option.
Comparison based on current official descriptions, not hands-on testing of the competing product. Prices, subscription eligibility and feature availability can change.