Sift - Spam Text Filter

Open source spam text filter

Only for iPhone

Free · In‑App Purchases

iPhone

Sift is a privacy-first SMS filtering app for iPhone, built to make your inbox quieter and easier to control. Sift uses the iOS message filtering extension to classify junk, promotions, and important notifications directly on your device. By default, filtering does not send message contents to a server. Your custom rules, local statistics, and on-device personalization stay on the device. Key features - On-device SMS classification for spam, promotions, verification codes, delivery updates, banking notices, travel alerts, and more - Custom sender or message-body rules - Category mapping that redirects selected categories to Promotions or Junk - Private statistics that count categories without storing message text - Optional sample contribution with an on-device redaction preview, export, and deletion controls - Sift Premium: a one-time purchase that unlocks an on-demand multilingual Transformer model Sift is not a fraud-prevention guarantee. SMS classification is probabilistic and can make mistakes. For payments, accounts, verification codes, or other important messages, always verify the original message and official channels.

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- Fix some already-known issues

Version 1.3

The developer, 源鹏 廖, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • 源鹏 廖
    Size
    • 38.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    Languages
    English and 2 more
    • English, Japanese, Simplified Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © BackRunner
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More