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X4 App Store

Practical apps and services built by Bill Carico and the X4 team.

X4 Aloud

Turns PDFs, Word files, ebooks and web pages into spoken narration.

Available

Billy, Your Personal Butler

Voice-command assistant: tells the time, places calls and answers questions, speaking in a cloned voice.

Android

X4 Xfer

Group file-sharing rooms in your browser, like a group text for files.

x4.com/xfer

X4 Slice

Splits large files into pieces that fit upload and attachment limits.

Available

X4 RingThrough

Call twice and the second call rings through even on vibrate, so family can flag what's urgent.

Android

X4 Drive Reader

Reads your text messages aloud while you drive.

Android

X4 Retrace

Maps your phone's location history and call log so you can see where you've been.

Android

X4 Mic Sentry

Logs when your microphone turns on and helps guard against unauthorized listening.

Android

Thought Keeper

Quick voice notes with attachments and page scans, so a good thought isn't lost.

Android

X4 Find My Phone

Clap or holler and your lost phone beeps and flashes its light.

Coming soon

X4 Gallery

Photo editing plus short motion clips built from captured frames.

Coming soon

X4 Video Meetings

X4-branded video meetings built on open-source Jitsi.

Coming soon

X4 Blessline

A local prayer and encouragement phone line.

Coming soon

X4 Arrival Notification

Automatic "I've arrived" texts or emails to a list you choose.

Coming soon