Callfilter.app vs Verizon Content Transfer

Callfilter.app is an Android app that blocks incoming calls according to rules set by the user. It can reject 8-digit numbers, numbers on a personal list, custom-pattern matches, or all incoming calls. Custom matching supports regular expressions, and users can choose to receive a notification when a call is rejected. CallFilter checks calls on the device through Android’s CallScreeningService API, using a local SQLite-based rule engine without remote database lookups. The maker describes it as offline, with no accounts or tracking. Its privacy policy says the app does not send personal data to external servers and does not use third-party SDKs, advertising networks, or tracking libraries. The app is free and open source, and the maker invites users to audit or contribute to the project on GitHub. It filters calls according to the user’s settings; it does not replace the phone app. The Play Store listing warns that some features may not work correctly on Samsung devices running Android 12 or later.

Verizon Content Transfer moves personal data from an old phone to a new one. It transfers contacts, photos, videos, calendars, call logs, and audio between Android and iPhone devices. Pairing uses a QR code, and Verizon’s Android instructions require Wi-Fi on both phones. Transfers are described as end-to-end encrypted, with data encrypted in transit. The app reports progress in real time and can resume an interrupted transfer. Contacts and media already backed up to a cloud service are not moved by this process; they must be restored through that service. Android instructions direct users to the Play Store when the app is not already installed. The iPhone listing requires iOS 15.0 or later, and the iPad listing requires iPadOS 15.0 or later. Verizon lists a free plan with download from the App Store and no wires, accounts, or cloud required. The pricing note states paid plans from $3.99/mo and a 15-day trial, while the free-trial field says no.