between that 2021 version and the current 2026 version? AdGuard Pro — Adblock for iOS | Overview
If you are trying to install or update a specific version from 2021, ?
Unlike browser extensions, it acts as a local VPN to intercept traffic across apps.
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Based on the search results, "adguard-pro_20210430" likely refers to an older version or a specific snapshot of the app, or an archive associated with the AdGuard CLI tool from April 30, 2021 .