Cert Watch: SSL Expiry Alerts

TLS & HTTPS Certificate Check

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Cert Watch keeps a silent eye on the TLS certificates of any domain you care about. Add a domain, let it check, and you get an instant snapshot of the certificate — issuer, expiry date, and how many days are left. From then on it checks automatically in the background and notifies you before anything lapses. Expired certificates are embarrassing at best, catastrophic at worst. Visitors see a security warning, browsers block the page, and trust evaporates instantly. Cert Watch catches the problem days or weeks before it happens. Add any domain you want to watch. Cert Watch checks the certificate transparency logs, finds the current certificate, and stores a baseline. Background checks run every 1, 6, or 24 hours depending on what you set. You get a push notification at 30, 14, 7, and 1 day before expiry — and again the moment a certificate is renewed or replaced. The event log keeps a full history of every change, so you can see exactly when a certificate was renewed, who issued the new one, and whether anything unexpected happened. Built for developers managing their own infrastructure, security engineers keeping tabs on third-party services, or anyone who has ever had a certificate lapse at the worst possible moment. No account required. Everything runs on device.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

New: a Settings screen with certificate warning policies (Production, Strict, Renewal) and a default check frequency, a first-launch intro, and a Check full site posture action. Plus reliability improvements.

Version 1.0.7

The developer, Keith Batterham, 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
    • Keith Batterham
    Size
    • 40.7 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Keith Batterham
  • Developer Website
  • Privacy Policy

    • More by Keith Batterham