• OTO Global International Calls 1
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OTO Global International Calls

OTO Global is your ultimate app for communication with friends and family! Highest quality international calls at the lowest rates, unlimited free calls to OTO users, purchasing real phone numbers with OTO Number service and multimedia messenger are just some of many features you can enjoy with OTO Global app.
Key features:

1) OTO international calls / SMS Over 5 million people are already using OTO to make the crystal clear quality international calls at the lowest rates.

2) Free calls to OTO users Enjoy completely free high quality unlimited calls to OTO users anywhere in the world using your WiFi or data connection.

3) OTO Number Get your own OTO number to make and receive calls without showing your real number. You can set up to 5 numbers to manage your personal and business life the way you want.

4) OTO Messenger OTO messenger lets you send text, voice, photo and video messages, share your location and much more. Enjoy communicating with your friends and family with OTO messenger.

Contact usDo not hesitate to contact us with any inquiries or suggestions. We are always happy to hear from you.

Message Board -> More > Question and AnswerFacebook: www.facebook.com/otoglobal.enHomepage: www.otocall.comCustomer Service Center: +82 2 1600 0546

Category : Communication

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Reviews (29)

Roc. W. Jun 29, 2019     

simply the best. i'm living far away from home and international calls are expensive and paying for credits or calling cards is annoying. i can call for free, no strings attached with this app. its great for when i need to call service numbers back home for banking etc, or just when i want to call my mom, who doesn't do well with technology and likes to talk on a land line.

Abs. T. Dec 8, 2019     

Worst experience ever. Have been loyal user for years but once I needed some basic support then I got explicitly ignored. This app needs you to pass a verification every time that you install it on a new device. Currently I cannot pass this verification due to some issue with the app. In the account page once I send a inquiry they replied only once after many days, telling me to contact them by email. Guess what, I contacted them over 10 times by different emails and no reply. 2 months stress.

Sal. M. Aug 18, 2019     

Fine when I first installed in one country. But when I moved it did not give an option to change my SIM country, even though that SIM was no longer installed. My new country was marked as my roaming country and so I couldn't make free calls any longer. There was no obvious way to change this so I deleted my account and reinstalled the app. So far so good. Filled in the first page, all in English with Ts & Cs, permissions, etc. Continued to next page: 2 choices in Korean. WHY???

mst. May 7, 2019     

The app has stopped working for me. Whenever I press the receiver to call anybody, I get redirected to the 'Call Log' section, instead. I emailed about the problem and have been waiting for response for well over a month, now. Unfortunately in vain. There's been no sign of life. Bear this in mind if you ever plan to use this app. I definitely don't recommend it. To staff: If there are no plans to fix this issue, I would greatly appreciate if you kindly returned my funds. Thank you in advance.

Chl. P. Mar 8, 2019     

I've been trying to make a call to Seoul over one hour after I purchased $4.99 credit. Now I've got only 237 min. left WITHOUT any connection!!!!!! It shows "connecting" window for a few seconds, then just ENDS the call by itself. I'm calling my credit card company to stop the payment if I don't get any support from you today. I've wasted too much time and energy with this app not working!

Geo. K. Jun 25, 2020     

The past month the quality of the phone calls was not good. Now the app isn't working. I tried to buy some credit and the notices kept on showing. I uninstalled and installed again and I get a blank page when I try to verify. Not a good thing.

baO. w. Feb 2, 2020     

been using this app for 3 years works perfect everytime love it. I get to talk to my love ones overseas without costs. best app ever! BUT somehow today it says 'check connection' and would not work this never happened before. I reset my modems my phone and still nothing. I hope it's fixed .sad face.

Ahm. M. Aug 21, 2019     

The app was working fine few months ago ... I had to reinstall, then I am stuck at the first verification step where I enter my phone number ... It always gives me an error message with "Check your network connection" error!!

her. Dec 24, 2019     

Not worked for ages - poor support Worked fine for a while then kept throwing the same error asking to check connection. When messaging them they never solved it. Had credits sitting in the account with no way to redeem/use them.

Mag. V. Sep 21, 2019     

I downloaded it here in Korea but it's all in Korean and I don't know what it says. I used Google translate but Oto is asking for some national ID number 😩. I tried using a VPN the second time after uninstalling and reinstalling, but same thing happened.

Deb. G. Apr 7, 2019     

recently you sent me an update to oto global so i clicked on it. i was very disappontef. it automatically deleted all my saved phone numbers i had on speed dial as well as someone who spoke korean talked during my call. i uninstalled the app..

hyu. b. Jan 7, 2021     

It doesn't work. Keep saying "please check your network". I tried to use several wifi but doesn't work. I think your app should check network!

Ben. K. Apr 17, 2021     

It doesn't work After following the steps It sends webpage not available What's wrong guys. The first version was easy and good. The old version told me that my country is no more there.so i had to download the global international. It's not good at all Please fix this problem.

Cra. J. Mar 22, 2020     

This app used to work perfectly for years. Now it's asking for complex verification in Korean. The old app was 100% in English, now it's nothing but trash. Who is your market for the app? Why is the app name in English if only Korean people can use it?

데릭피. T. Jul 5, 2019     

Won't show rates until you give total permissions on your phone, camera, contacts, and create an account and buy credit. OTO give me the rate from US to Korea in a response, to prove me wrong.

Rus. L. Sep 27, 2019     

Broken App, the call to verify my phone number has not come despite multiple tries. The help staff is unresponsive despite following their instructions to send all information to their email.

Ami. K. Dec 25, 2019     

This is a rubish app ... always shut down after showing disclaimer you device is on root mode even though I haven't did that thing then also...... don't waste your time... uninstall it .....

JAI. C. Jun 19, 2020     

I topped up the balance earlier and made international call several times. And now i wanna make a call again but it keeps saying "please check your network connection"..

DIC. S. May 2, 2019     

please return my credit back it can no long show in app and if I watch video the credit can no longer enter my account. my credit is now back to my account every thing is now in order,I can make call clear with this app it is nice and great .

Eni. b. Jul 29, 2019     

Works okay...calls cut off way too often though.But the worst part is there is no customer service or if there is I cant find it.Now I am restricted from crediting my account with any payment method.Theres no reason given...I tried various cards.

Dar. M. Oct 22, 2019     

Call verification didnt work, kept getting 'unsupported network' error. I use Plusnet which runs on EE network. After 5 errors it told me my SMS daily attempts have been exceeded.

Joh. R. Apr 13, 2019     

If you make international calls, this is the only app you'll ever need. I've been using OTO for years now and have never been let down by it. Oh, and it is TOTALLY FREE.

jih. k. Oct 30, 2020     

I tried to buy more credits, but notices keep popping up. It was working perfectly fine last year, but I guess it's no good now.

신혜성. Oct 9, 2020     

The app stopped working about 6 months ago. Sent email twice for refund. Still no answer.

Cha. D. Jun 17, 2020     

Editing previous 1 star review.... it works now and it works well. Verification process was horrid and it should be changed to be more foreigner friendly

Tuh. A. Oct 10, 2019     

Terrible experience, call keeps disconnected. Brought some credits, never again. Why they keep showing ads even for paid customers?

Ace. B. Feb 13, 2021     

Wont load. Asks me to confirm my telecom company and it just never loads. Garbage app.

SEA. 2. Jul 24, 2019     

Why cannot call Afghanistan, it says you cannot call this number. please check phone number & try again. i tried many numbers for Afghanistan all of them are responding same. do i need to download VPN?

Jun. K. Mar 22, 2019     

i wish you to refund my credit i made call to Kenya and I was not able to even hear the voice. i can give you voice record if you want i have recharged 10000 won and you guys took away credits with actually nothing. I don't really wanna blame someone so kindly refund to me.....