# Otubio — Cheap International Calls > App for making cheap international calls with clear quality and no hidden charges. (iPhone/iPad app by Tbass, LLC.) - Source: https://appshunter.io/ios/app/otubio/id1247916652 (this page in markdown: same URL + `.md`) - Developer: [Tbass, LLC](https://appshunter.io/developer/1142707994) - Category: Social Networking, Travel - Price: Free with in-app purchases - Rating: 3.80/5 from 21 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 34 MB - Languages: American English - Released: 2017-12-13 - Data updated: 2026-06-10 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/otubio/id1247916652/reviews.md ## What is Otubio? Otubio is an app that lets you make cheap international calls to any user in any location around the world. Otubio helps you save on your international phone call bills. Otubio eliminates the need for conventional phone calling cards because you no longer have to remember long pin numbers. You can call your contacts directly from the Otubio app. Otubio is easy to use and allows people to connect to friends and family all over the world. With Otubio, there are no hidden charges. Otubio has one of the cheapest rates to several countries. Otubio uses either the internet or local access numbers to connect the calls. Otubio also lets you make free calls to other Otubio users. Simply ask friends and family to download the app so you can call them for free. Why is Otubio the best international calling app? • Calls are always clear with excellent quality. • Very competitive rates. • Caller ID on all calls. • No dropped calls. Talk for as long as you want. • Unlimited plans to countries like India, Nigeria, and Bangladesh • Free calls and chats between Otubio users • Ease of use. No need for pin numbers. Contacts are dialed automatically • Auto-recharge – top up your balance so you never run out of credit Excellent Call Quality Call rates are extremely low and connection quality is superb. Otubio uses high quality connections which means your Caller ID is displayed to your recipient all the time. With Otubio, you can make cheap international calls to any destination with minimal effort. Ease of Use The Otubio App syncs with your contacts so you do not have to worry about manually entering phone numbers. You no longer need to remember cumbersome pin numbers peculiar with calling cards. Otubio uses an automated system that eliminates the need for calling cards. As such, trips to the grocery store to buy calling cards are no longer needed. Otubio calls are pin-less and of excellent quality. You can add credit right from the app or through the Otubio website. Transfer Credit to other Otubio Users Another great feature of Otubio is the ability to share or transfer credit. If you have friends or family that want to use Otubio to make cheap calls but do not have a means to add credit to their account, you can transfer credit from your account directly to theirs. In addition, their is a referral feature that also enables users to get free credit when they refer friends. Call Via local access number or internet With the Otubio App, you can choose to connect your calls via local access numbers or through the internet (WIFI or Mobile Data). When you use WIFI or Mobile Data, Otubio uses an automated VOIP calling system to connect your calls. You are always assured of excellent quality calls. Otubio has no hidden fees so you always get value for what you pay for. You are not charged if calls do not connect. You only get charged if your calls connect and the calls are billed in one minute increments. Otubio has the lowest rates to several destinations which include Nigeria, Ghana, Pakistan, India, Jamaica, Cuba, Kenya, Ethiopia, Bangladesh, Cameroon, Egypt etc. To get the best international calling service, download Otubio. Making international calls does not have to be an expensive or tedious process. Otubio lets you get the cheapest international call rates available and still maintains high call quality. ## Key features - Cheap international calls - Clear call quality - No dropped calls - Direct contact dialing - Free calls between users - Credit transfer - Referral bonuses ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Otubio Credit 5 | $7.99 | one-time | | Otubio Credit 10 | $14.99 | one-time | | Otubio Credit 15 | $21.99 | one-time | | Otubio Credit 20 | $28.99 | one-time | | Otubio Credit 50 | $74.99 | one-time | | Otubio Credit 75 | $99.99 | one-time | ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/otubio/id1247916652/reviews.md ### 1/5 — Not working *2025-07-18* I paid $5 never get credit try call 8 times but no answer not responding ### 1/5 — App needs some work *2023-12-05* The worst app I’ve ever used for international calls. I did put money but I couldn’t call. ### 5/5 — Great app, highly recommendable *2020-09-23* Awesome application ### 5/5 — App need to add credit by AppStore’s *2020-07-05* Thanks good app if you add that I can add credit by AppStore’s it will be good ### 3/5 — Warning of depletion of funds during call *2020-06-23* Please give the caller a heads up that there call is about to end because lack of funds. I’m tired of it hanging up on my father. I would like to end the conversation politely, please. **Developer response:** Hello, we apologize for the inconvenience. The last minute remaining announcement was removed because most users considered it a disturbance. To prevent your call from disconnecting due to no balance, you can set up auto-recharge from your account on the website. This ensures you always have call credit and calls will not end due to no credit on your account. If you have any more issues, please email us at support@otubio.com or open a support ticket directly from the app. Regards. ### 1/5 — Doesn’t work anymore *2018-10-06* It was working perfectly for a month then just stopped working. **Developer response:** Can you send an email to support@otubio.com. Do you have the latest version of the app? Please email us so we can solve whatever issue you are having. ### 5/5 — Otubio is a good working application *2017-12-22* "sound quality is very good. Almost like you are using your cellphone provider directly" ### 5/5 — Clear to Naija *2017-12-16* Call quality to Nigeria is loud and clear. Also shows my caller if too. Awesome. ### 5/5 — Very good app. *2017-12-15* I have tried Otubio a couple of times and it connected really quick. ### 5/5 — Great App, Great low rates *2017-12-15* I love this App. Very clear international calls at awesome low rates. I love. I love!! ## Frequently asked questions about Otubio ### How does Otubio work? Otubio allows you to make international calls using either the internet (WIFI or mobile data) or local access numbers. It syncs with your phone's contacts for easy dialing and eliminates the need for cumbersome pin numbers. ### What are the call rates for Otubio? Otubio offers very competitive and low rates to many countries, with no hidden charges. You are only charged if your calls connect, billed in one-minute increments. ### Can I make free calls with Otubio? Yes, you can make free calls and chats to other Otubio users. Simply have your friends and family download the app to connect for free. ### Does Otubio have ads? No, Otubio is ad-free, allowing for an uninterrupted calling experience. ### How can I add credit to my Otubio account? You can add credit directly within the Otubio app or through the Otubio website. The app also features auto-recharge to ensure you don't run out of credit. ### Can I transfer credit to other Otubio users? Yes, Otubio allows you to transfer credit to friends and family who use the app, making it easy for them to make cheap international calls. ### What is the call quality like with Otubio? Otubio provides excellent call quality with clear connections and no dropped calls, ensuring you can talk for as long as you need. ### Is Otubio available on all devices? Otubio is available for iPhone and iPod devices, as indicated by its supported devices list. ## Version history (last 5 releases) ### 2.4 — 2021-02-21 Minor bug fixes ### 2.3 — 2020-11-01 Added free minutes tab. Improved user experience. Minor bugs fixed as well. ### 2.2 — 2020-08-09 Minor bug fixes ### 2.1 — 2020-06-07 Added profile information ### 2.0 — 2020-05-22 Fixed bugs with minor U.I changes ## Apps similar to Otubio | App | Rating | Price | Category | | --- | --- | --- | --- | | [PhoneClub – Best Calling Rates](https://appshunter.io/ios/app/phoneclub-best-calling-rates/id852478458) | 4.6 (537) | Free | Social Networking | | [BOSS Revolution: Call & Top up](https://appshunter.io/ios/app/boss-revolution-call-and-top-up/id586745548) | 4.7 (7,529) | Free | Social Networking | | [KeepCalling International](https://appshunter.io/ios/app/keepcalling-international/id518708790) | 4.5 (3,158) | Free | Social Networking | | [Pingo International](https://appshunter.io/ios/app/pingo-international/id1278198241) | 4.7 (858) | Free | Social Networking | | [CallIndia - Unlimited Calls](https://appshunter.io/ios/app/callindia-unlimited-calls/id1234251202) | 4.6 (1,744) | Free | Social Networking | | [Text Me - Phone Call + Texting](https://appshunter.io/ios/app/text-me-phone-call-plus-texting/id514485964) | 4.7 (650,043) | Free | Social Networking | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*