OTO Free International Call

Contains ads
26.5K reviews
Content rating
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About this app

OTO Free International Call app provides free international calls and it doesn't charge any international call fee, while it uses your additional/video call minutes given monthly by your carrier company.

[Main Functions]

★ Free International Phone Calls
- You may place free international phone calls to the United States, Canada, Japan, etc. to most of the countries in Korea. (However, free phone calls are available according to the payment plans of smartphones.)

★ Why OTO Free International Phone Calls?
1. OTO Free International Phone Call is free because it does not incur costs for any international phone calls placed.
2. You may use international phone calls via the local voice phone bills, so no worries.
3. Unlike other services that offer free service to a limited range of countries, OTO offers free phone calls to most of all countries.

If you encounter any inconveniences using our service, please do let us know. We are always all ears for your valuable opinions.
- website : www.otocall.com
- call center : +82-2-16000546
Updated on
Sep 4, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info
This app may collect these data types
Contacts and Device or other IDs
Data isn’t encrypted
Data can’t be deleted

Ratings and reviews

26.2K reviews
loshuart Sumoon light
August 26, 2021
It is good as a free overseas phone application but sometimes It seems to be the quality of the call is bad and my voice is automatically changed. I can hear the counselor's voice change from time to time. It sounds like scared. It's a greatest free app, I'm sorry i couldn't give 5 star.. it sounds rude but it's true due to the quality of the phone.
9 people found this review helpful
August 26, 2021
Hello. This is OTO Support Team. We apologize for the inconvenience you had to go through. For inquiries, please contact us through our KakaoTalk channel OTO고객센터 or call 1600-0546. We're trying our best to provide good quality of call and service to our customers. Thank you for using OTO.
El Pecee
January 21, 2021
I've been using this for a few years for calls from South Korea to the U.S. It works great for that, but doesn't work the other direction. Calls will drop occasionally but I just call back. Most of the time works fine with no cost to me or the person I called.
9 people found this review helpful
January 22, 2021
안녕하세요 고객님, OTO CS Team 입니다. 고객님들께 좋은 통화품질과 서비스를 제공하기 위해 항상 최선을 다하는 OTO가 되겠습니다. 말씀하신바와 같이, OTO무료앱은 고객님의 위치가 대한민국일 때 발신 가능합니다. OTO를 이용해주셔서 감사합니다.
A Google user
December 14, 2019
After update, no longer dials US numbers or gives false message that number does not exist despite using the same numbers in OTO for YEARS! Sorely disappointed & looking for alternative. DEC. 14 2019 UPDATE: Took two attempts with support but it's working properly again after some weeks.
15 people found this review helpful
October 30, 2019
Hello, this is from OTO Service Team. We are sorry but please leave a detailed message to our e-mail to help@playoto.com with your phone number, and we will check and get back to you. Sorry for the inconvenience.

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