VoxGuard — How It Works in 60 Seconds
The short version: an unknown number calls, and you don't have to pick up, and you don't have to guess whether it was worth answering.
Here's the flow, end to end.
1. An unknown number dials your phone
Contacts ring through normally — nothing changes for people you know. Unknown numbers get routed to VoxGuard's server instead of your phone, through a one-time call-forwarding setup the app walks you through during onboarding.
2. VoxGuard picks up and plays your phrase
The phrase starts with a default and you can change it in Settings at any time — up to 64 characters, multi-word. Whatever it's set to, VoxGuard speaks it aloud as a prompt to the caller. It's something they hear, not a password they're supposed to already know.
3. The caller repeats the phrase, then states their name and reason
Robocalls can't do this — they play recordings, not conversations. Anyone who does respond gets asked why they're calling, and VoxGuard records that part. Whatever they say goes to you, not you to them.
4. You get a notification with the recording
When your phone is locked, it comes up as a full-window incoming-call display. When it's unlocked, you get a heads-up notification instead. Tap in to hear the audio and read the transcript. You have two minutes to decide.
5. Approve or Decline
Approve and the call connects to your phone normally. The caller's real number shows up, not VoxGuard's — from the caller's side, it rings like any other call. Decline and VoxGuard hangs up on them.
That's the whole thing.
Why this shape instead of a spam database
Most call-screening tools match incoming numbers against a list. The list is always a little behind, and wrong matches are silent — a blocked doctor never gets to tell you they called.
VoxGuard filters on behavior instead of reputation. The question isn't is this number on a list. It's did this caller listen to a prompt, respond, and say who they are? Robocalls can't. Real people do it in ten seconds. Whatever they say in their reason, you hear before you decide.
What it costs you
One-time carrier forwarding setup (the app shows you the codes). Android only, US inbound only, for now. Subscription is $4.99/month with a 7-day free trial.