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Montgomery Appworks

Quellfern: Spam Call Blocker

Blocks known spam and scam calls on iPhone and Android using the FTC's complaint data, with no account needed and no call data leaving your phone.

Coming soon to iPhone and Android.

Quellfern, Spam Call Blocker
Quellfern on a phone

Free

  • Blocking of FTC-listed numbers
  • Allow and block lists
  • Balanced, Strict, and Label-only modes

Pro

  • Labels for neighbor-spoof calls, plus blocking them on Android
  • Quiet hours on Android
  • Daily list rebuilds instead of weekly
  • Pattern, range, and area-code or country blocking on Android
Quellfern home screen
Home
Quellfern number check
Check
Quellfern allow and block lists
Lists
Quellfern enable blocking
Enable

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Contact: support@montgomeryappworks.com