通信护盾 - 骚扰诈骗电话短信拦截神器

Tired of incessant calls from strangers and verification codes getting buried in a flood of promotional texts? The "Communication Shield" integrates a database of publicly flagged nuisance numbers directly into your phone; it evaluates incoming calls and messages locally on the device, allowing it to function without registration, data uploads, or an internet connection. [Offline Blocking: Active Immediately Upon Installation] · Built-in database of approximately 150,000 publicly flagged nuisance numbers (covering scams, loan solicitations, etc.); calls are blocked directly by the iOS system. · Public numbers (couriers, customer service, etc.) are only flagged for identification—displaying the category on the incoming call screen—to prevent accidental blocking. · The number database is bundled with the app and updated incrementally; the existing database is retained if a download verification fails.

[Personal Blacklist: Independently Managed] · Manually add full numbers; writes to the system blocking database instantly; supports notes and grouping. · Personal blacklist and public number database operate via separate toggles and do not overwrite each other. · Numbers reported within the system's "Phone" app can be added to the blacklist with a single tap.

[SMS Filtering: Fully On-Device] · Three-layer rule system (sender number, number prefix, and keywords) with NFKC normalization; matches both full-width and half-width characters. · Built-in Core ML classification model identifies spam; the model runs locally, so SMS content never leaves the device. · Option to sort promotional, order, and billing messages into their respective system categories rather than treating everything as spam. · Built-in test bench: Enter a sender and message body to instantly see why a rule was triggered using the same engine.

[Real-Time Identification: Supplementing with the Latest Numbers] · iOS 18+ supports real-time identification of unknown numbers during incoming calls, supplementing the local database with numbers not yet synced. · Lookups use Apple's anonymous relay and private query mechanisms; servers cannot see your number. · This feature requires an internet connection and becomes active in the production version after Apple completes the integration configuration.

[Reporting Integration] · Select "Communication Shield" during the reporting process in the system's "Phone" or "Messages" apps to simultaneously add the number to your blocking rules. · SMS reports are forwarded to the MIIT 12321 Reporting Center by the system, subject to your confirmation.

[Privacy: Meticulous Attention to Detail] · No accounts; no registration required. · Blacklists, rules, and protection logs are stored only on your device. · Contains no ads, analytics, or crash-reporting SDKs; does not access contacts, photos, or location data. · Public number database updates do not transmit any personal numbers or identity information.

[Important Information Before Use] · You must enable the specific protection features in the system settings; the app's home screen displays the status of each feature. · iOS does not report actual blocking results back to the app; the "Protection Log" within the app records rule changes, not the number of blocked calls. · The public number database relies on crowdsourced reports, so mislabeling may occur; please add important contacts to your address book, and feel free to pause the public database or delete specific numbers at any time.

【Who is this for?】 People frequently disturbed by telemarketing, loan offers, or scam calls; those who do not want their SMS content or blocklists uploaded to any server; and users who want transparent, verifiable blocking rules and the ability to manually correct instances of false blocking.

Install Communication Shield and keep unwanted interruptions at bay.