OTO Free International Call

Name: OTO Free International Call
Rating: 3.5316455 (24547 reviews)
Author: openvacs

By: openvacs App

A free international call service with no international call charges

Overview

Google Play Store

Downloads

6,809,395

Data as of 2026-10-02

Rating:

3.53 +1

(24,547)

Version:

—

Last updated: 2026-06-03

Ranking

#19,280 ▼ 80

Overall

Features & Capabilities

OTO Free International Call lets you make free international calls without any additional charges. It utilizes your monthly carrier-provided voice or video call minutes to connect you globally, including the US, Canada, Japan, and many countries in Korea.

Unlike other services, OTO does not impose international call fees and supports calls to most countries. Its seamless integration with your existing phone plan means you can enjoy international connectivity without worrying about extra costs. For support or inquiries, visit www.otocall.com or call +82-2-16000546.

User Growth & Download Statistics

App Communication

By:

openvacs

Downloads:

6,809,395

Rating:

3.53

(24,547) 1 new ratings

Version:

0 Last updated: 2026-06-03

Creation date:

2010-08-23

Publisher country:

Email:

he*****@playoto.com

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-10-02

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:: openvacs
Google Play Store: https://play.google.com/store/apps/details?id=com.openvacs.android.oto
Email:: he*****@playoto.com
Website:: http://www.otocall.com

User Reviews

Users report that OTO Free International Call can offer free international calls to some destinations when it works, but many reviews show it is unreliable due to country availability and billing problems. Recurrent issues include countries being unavailable (USA, UK, NZ, Netherlands), unexpected charges despite free-claim, and call drops or server problems. Some users note long-term use and occasional good performance, but ongoing availability and billing concerns dominate.

Pros

Free international calls to some destinations when the service works
Longstanding usage; many users report using it for years
Generally clear sound when calls succeed

Cons

Country availability issues: countries like USA, UK, New Zealand, Netherlands repeatedly unavailable or removed from the list
Not free in practice: users report being charged and even large bills despite claims of free calls
Reliability problems: app sometimes doesn't work, server issues, and calls can drop
Carrier-specific restrictions: some carriers (e.g., KT unlimited) see charges or limitations

Recent reviews

random outages and failure to connect

Th***** 2026-04-17

I made a free phone call. You must have unlimited voice call on your carrier. So mine has it. I am using SKT unlimited voice plan and I made a call to USA. It is totally free. I love this app.