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Zip Phone
AddedMar 20, 2024
UpdatedJun 18, 2026
Zip Phone

Zip Phone

Acquired

Zip Phone was a cross-platform WiFi calling app integrated with Android for free VoIP calls.

HQ
San Francisco, CA, US
Founded
2014
Accelerator
Y Combinator logoY CombinatorS14 (Summer 2014)
Overview
Compare
Fundraising
Employees
News
Website

Zip Phone was a cross-platform WiFi calling app designed to operate as an invisible application on Android, integrating directly with the native dialer. Once installed, it automatically detected WiFi connectivity and routed calls through the internet when both parties had the app, falling back to cellular when needed. Users never needed to launch a separate interface, sign in, or check online status before placing a call.

The company was founded by serial entrepreneur Anuj Jain in 2014 and accepted into Y Combinator's Summer 2014 batch. Zip Phone implemented end-to-end encryption using RSA and 256-bit AES with unique per-call keys that were never stored on servers. In January 2015, Indian messaging app Hike Messenger acquired Zip Phone for an undisclosed amount.

Zip Phone - Similar Companies

Zangi Messenger logo

Zangi Messenger

zangi.com

WhatsApp logo

WhatsApp

about.meta.com

Zingaya logo

Zingaya

zingaya.com

Plivo logo

Plivo

plivo.com

Zipstorm logo

Zipstorm

Avox logo

Avox

Zipit Wireless logo

Zipit Wireless

zipitwireless.com

Phoneplus logo

Phoneplus

Phone.com logo

Phone.com

phone.com

Community Phone Company logo

Community Phone Company

communityphone.org

YupiCall logo

YupiCall

Pinger logo

Pinger

pinger.com

Zello logo

Zello

zello.com

SignalWire logo

SignalWire

signalwire.com

textPlus logo

textPlus

textplus.com

Zip Phone - Quick Facts

Who are Zip Phone's competitors?

Companies similar to Zip Phone include Zangi Messenger, WhatsApp, Zingaya and Plivo.

When was Zip Phone founded?

Zip Phone was founded in 2014.

Where is Zip Phone's headquarters located?

Zip Phone's headquarters is located in San Francisco, CA, US.

How much has Zip Phone raised to-date?

As of Jan 7, 2015, Zip Phone has raised a total of $150k (USD).

Zip Phone - Classification

Ownership
  • Private
Technology
  • Android
  • Encryption
  • Voip
Model
  • Direct To Consumer
  • Platform
Revenue
  • Subscription
Customer
  • Individuals
Tags
  • Mobile
  • Social