Build a focused Android blocking service with a lightweight local VPN^?, frequently updated filtering rules, and automated tests against a published set of popular sites and apps. Let customers report a failed page or app in one action, reproduce the failure on test devices, and distribute a rule update without requiring a full application release. Start with browser and DNS^?-level blocking, clearly identifying apps where encrypted or first-party ads cannot be removed reliably.

Multiple products are showing declining effectiveness as publishers and app developers change ad delivery and blocker-detection methods. Users explicitly report abandoning paid tools and searching for replacements, creating an opening for a provider that sells measured reliability rather than a static blocker.