Stone Call is a managed voice, video, and messaging service for small teams, built around a Swiss Destroy design language: stark typography, monospaced rhythm, and the data laid bare. Sign up, sign in, and start calling — there is no PBX to configure, no carrier contract to sign. We run the infrastructure.
CORE FEATURES
Voice & Video Calls
HD voice and video over WebRTC, optimized for LTE and Wi-Fi. Automatic ICE Restart handles network handovers without dropping the call.
System Call Integration
Incoming calls appear as native system call screens — same look as a regular phone call, lock-screen aware, audio routing handled by the OS.
Messaging
Send text, images, and files alongside calls. RCS-style message revocation. Real-time delivery with media stored on a hardened, CDN-fronted file backend.
Linked Devices
Pair phone, tablet, and work phone under one identity. Calls and messages reach every device you own. Manage and unpair sessions from settings.
Notes Room
A private chat with yourself, synchronized across every device you are paired on. Stash drafts, paste links, send files between your own phones.
Contacts & Call History
Local contact database. Inbound and outbound call records are auto-generated and searchable.
Phone Numbers
Lease a real phone number based on your location. Your number is restored automatically across reinstalls using a stable device identifier.
Push Notifications
VoIP push notifications ensure calls reach you even when the app is fully terminated.
PRIVACY
- App Tracking Transparency on iOS.
- TLS-encrypted call signaling.
- SRTP-encrypted media transport.
- Account deletion built into settings.
- Privacy policy and terms of service available inside the app, with multilingual support.
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
• Added support for iPhone Duo. Screens adapt as you fold and unfold, stay clear of the fold when it's partly open, and tabs and buttons sit in the side bar.
• Polished the keypad and call screens in landscape so nothing gets cut off or overlaps.
• In landscape video calls, your own preview now stays on screen.
• Fixed chat details showing an internal address instead of the other person's number.
Version 1.3.6
The developer, TEAM MILESTONE GP., 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Purchases
Location
User Content
Search History
Identifiers
Usage Data
Diagnostics
Data Linked to You
The following data may be collected and linked to your identity:
Purchases
Location
User Content
Search History
Identifiers
Usage Data
Diagnostics
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
TEAM MILESTONE GP.
Size
60.8 MB
Category
Utilities
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.