Yolla vs. Rebtel vs. HelloAirDial vs. Viber vs. Talk360: Full Comparison and Reviews 2026

Yolla is available for international calls to and from a wide range of countries. It supports calls to both landlines and mobiles in countries like Eritrea, Nigeria, Ethiopia, Kenya, Ghana, Myanmar, UK, South Africa, Zimbabwe, and over 200 other countries and territories. You can call from anywhere in the world to these destinations, and the person you're calling doesn't need the Yolla app or even a smartphone to receive the call.

HelloAirDial is available for outbound international calls to over 200 countries and territories worldwide. Unlike traditional apps, it operates entirely through web browsers using WebRTC technology, meaning you can place calls from any device with internet access without downloading an app or owning a SIM card. It supports clear connections to both mobile numbers and landlines globally. Since the service bypasses the need for an app-to-app ecosystem, the recipient doesn't need to have HelloAirDial installed, nor do they need an internet connection to receive your call.

From the 49 countries listed, you can use Rebtel's app without internet to call your loved ones abroad. Just be sure to have enough Rebtel Credits or an active subscription to the country you want to reach. Then they'll connect your international call through local lines, making it possible for you to pay local rates.

Viber is available in many countries worldwide, particularly popular in the Philippines, Eastern Europe, Russia, the Middle East, and some Asian markets. It is also widely used in Greece, Belarus, Ukraine, Iraq, Libya, and Nepal. While not globally available in the same way as some other messaging apps, Viber offers a strong presence in specific regions according to Rakuten Viber.

Talk360 is available for use in virtually every country worldwide. It's designed to facilitate international calls, including to landlines and mobile numbers, even if the recipient doesn't have the app or internet access. While it's usable globally, Talk360 particularly focuses on making international calls more affordable in regions like Africa, Asia, and other areas where traditional calling options can be expensive.

Pricing:

Call 190+ countries, starting from $0.04 per minute.

Nigeria: Get 30 min for $0.99;
Eritrea: Get 20 min for $0.99;
Kenya: Get 20 min for $0.99;
Ghana: Get 15 min for $0.99.

For new users only.

HelloAirDial adopts a more modern, transparent pay-as-you-go model with no monthly subscriptions or contracts. It allows you to call landlines and mobiles in 200+ countries directly from your browser, starting from $0.02 per minute.

Additionally, top-up packages are clear and flexible, offering fixed tiers like:

Starter: $5 one-time balance (no app download required)

Regular: $10 one-time balance (with team bonus options for higher tiers)

Bonus: New users can try the service with a free 1-minute test call—no credit card required.

Rebtel is a bit more traditional when it comes to international calling. It offers a $12 per month unlimited plan, which allows for unlimited calling to 50 countries, mobile or landline.

Additionally, Rebtel offers very competitive international by-the-minute rates for countries all around the world with calls to India from as low as 2.39¢ per minute and calls to both the UK and Mexico from 2¢ per minute.

Viber offers affordable international rates for a wide range of countries, although at first glance, they do look a bit more expensive than your average platform. For example, calls to India will cost you 1.5¢ per minute and calls to Mexico will be 1.2¢ per minute, whereas calls to Nigeria will knock you back 7.7¢ per minute. Still, with international calling available for app users, you can get around those costs if you think it’s too much.

Talk360 is an international calling app that offers competitive rates for calls to various countries, with prices per minute varying by destination. For example, calls to the US, Mexico, and India can be as low as $0.04 per minute, while calls to China, South Africa, and Nigeria range from $0.13 to $0.23 per minute. The app allows users to make calls to both landlines and mobile phones without requiring the receiver to have the app or an internet connection, and it uses the user's existing phone number as the caller ID.

Setting Up:

To set up Yolla, you'll first need to download the app from either the App Store or Google Play Store. Then, sign up with your phone number and verify it. You can then purchase a subscription or top up your account with credit. Finally, you can start making calls to any phone number, including landlines, anywhere in the world.

You can also earn free credits by inviting friends to use Yolla. When they sign up and make a purchase, you both receive bonus credits.

To set up HelloAirDial, you don’t need to download any apps or own a SIM card. Simply open your web browser—such as Chrome, Safari, Firefox, or Edge—on your phone, tablet, or computer, and visit the HelloAirDial website. From there, you can quickly create an account.

Once you’re ready, you can top up your account using their pay-as-you-go model with no monthly subscriptions. Finally, just enter the destination phone number and start making international calls to landlines or mobiles directly from your browser.

To set up Rebtel, first download the app from the App Store or Google Play. Then, create an account by choosing your country of residence and entering your phone number in international format. After that, you can configure call settings, choosing between Wi-Fi, mobile data, or local numbers for connections. You can also add numbers to your account and manage your subscription or credits.

Once the setup is complete, you can start making international calls using Rebtel's various connection methods.

Dwonload & launch the app, you'll need to enter your phone number and give access to your contacts list. For verification, you'll also get a text message with a code you'll need to enter before your account is completely synced to your device.

Once you're set up, you can peruse the contact list to see which of your contacts also use Viber and you can invite contacts who don't. Once Viber is installed and activated, you should update it regularly to get the latest version.

To get started with Talk360, you need to download the app from the Google Play Store or iOS App Store. After installation, register your phone number by entering it in the app and verifying it with the code you receive via SMS. Once registered, you can start making calls by either dialing a number or selecting one from your contacts.

Talk360 allows you to call both landlines and mobile numbers, and you don't need a subscription to make calls. You can buy call credits within the app when needed.

Messaging Features:

Send SMS to any mobile in the world. Sending SMS with Yolla is as easy as sending a regular SMS – go to any contact within the Yolla app, tap the “SMS” button, write the message and send it. The SMS rate is flat – only $0.15 per message, which is cheaper than using a local carrier to send international texts.

HelloAirDial is a specialized, browser-based communication platform that is strictly designed for outbound international calling and does not support text messaging or SMS features. Since the platform operates entirely via WebRTC within a web browser, it focuses solely on providing affordable calls to landlines and mobile numbers worldwide without requiring an app download or a SIM card. While users can choose to display their own mobile number, a public number, or a purchased US/Canada virtual number as their caller ID, the platform completely lacks social chat, messaging tabs, or any text-based international communication features.

Rebtel's messaging features primarily focus on international SMS, allowing users to send texts to other countries at potentially lower rates than their mobile carriers. Rebtel doesn't offer a built-in chat or messaging service within the app itself; communication is limited to voice calls. Rebtel offers SMS messages at potentially reduced rates compared to standard mobile carrier charges, sometimes up to 65% less according to Rebtel's website, for international SMS.

When sending an SMS, users can opt to use Rebtel's "collect reply" service. This sends the recipient a link with the message, which they can use to reply, with the reply cost being deducted from the sender's Rebtel credit, according to Rebtel's website.

Once you have some people to chat with, you can use Viber like most other messaging apps. You can send text messages, short audio clips, photos and videos from your library, your location, and emoticons.

Sending a message is just like other apps, with balloons for each of the people chatting, and you can set up group texts for up to 100 participants. You can create an audio clip by touching the microphone, then touching and holding a big button in the bottom center to record. It's not quite as elegant as the touch and swipe up method you get with iOS Messages, but it works just fine.

There is a doodle feature, which lets you pick a brush size and color, then draw on the screen to send little doodles to your friends. It's obviously not a crucial feature, but it's a fun addition that lets you add something more to the conversation.

The app also has stickers, which are larger, more detailed graphics than emoticons. You get a pretty large selection, but you can also buy themed sticker packs for $1.99 each through in-app purchase.

Talk360 is primarily designed for international calling and does not offer SMS messaging features. While the app does have a messaging tab, it's used for contacting support or receiving promotional messages from Talk360, not for sending messages to other Talk360 users. The app focuses on providing affordable calls to any mobile or landline number worldwide, utilizing the user's existing phone number as caller ID, without requiring the recipient to have the app or internet access.

Audio And Video Calls:

Yolla is an app that allows users to make international calls to mobile and landline phones, even if the recipient doesn't have the Yolla app or an internet connection. It is often considered a good alternative to Skype. In addition to its international calling features, according to Google Play. All calls between Yolla users are free, including video calls. Yolla also allows you to make international calls to landlines and mobile phones, even if the other person doesn't have the Yolla app installed.

HelloAirDial is highly rated for its crisp, crystal-clear audio quality and flexible calling options, specifically tailored for international communication. Operating entirely via WebRTC technology through your internet browser, it enables users to dial landlines and mobile phones in over 200 countries instantly. Much like Talk360 and Rebtel, HelloAirDial focuses exclusively on voice calling and does not support video calls. The platform is designed to provide an ultra-convenient, contract-free solution, eliminating the need for recipients to have an internet connection or the app installed to receive calls.

Rebtel generally receives positive reviews for its international call quality, with a focus on clear audio and low rates, especially when compared to traditional international calling methods. While some users have reported occasional issues with call drops or service interruptions, the overall consensus points to a reliable service with good voice quality, particularly when using the app's local number feature. However, it's worth noting that Rebtel does not offer video calling.

What sets Viber apart from most third party messaging apps is the ability to make both audio and video calls and you can do it on a 3G connection or better. The app uses your regular phone number, and you call anyone around the globe for free provided they also have the app. In my testing the call quality was excellent and even sounded better than regular calls on my iPhone.

If you want to call landlines or people who don't have Viber, you have the option to buy what it calls Viber Out. The app lets you add money to your Viber Out credit with a tiered pricing plan. What's nice about this feature is that it tells you how much it will cost to call various countries before you spend anything. This means if you have a friend in London and you're in the United States, you can quickly figure out how much credit you will need for the amount of time you want to talk.

Video calls are also free so long as both parties have Viber, and will work on a 3G connection or better. I found that the video quality suffers somewhat with a poor connection, so Wi-Fi is the more ideal way to make video calls.

Talk360 is generally reviewed positively for its audio call quality and affordability, especially for international calls. While it primarily focuses on voice calls, users appreciate its reliability and ease of use for contacting people globally. Same with Rebtel, Talk360 does not support video calls. The app focuses on providing a cost-effective way to make calls without the need for an internet connection on the receiving end.

Public Chats:

Yolla primarily focuses on international voice calls and text messaging (SMS). Yolla allows app-to-app calls for free and also enables calling to mobile and landline phones in many countries, even for people without internet access. Yolla does not offer features like file sharing, video calls, or public chat rooms.

HelloAirDial does not have public chats. It is a browser-based, VoIP-focused calling platform designed strictly for direct one-on-one international phone calls, rather than instant messaging, social group chats, or public communities.

Rebtel does not have public chats. Rebtel's primary function is international calling and mobile top-ups. It's designed for one-on-one voice communication, not instant messaging or chat features.

Viber lets you listen in on public chats with various themes such as Song of the Day or Disney Theme Parks so you can follow topics that interest you. It has a few celebrities and companies (such as Disney) you can follow to see what people are talking about. The problem here is that you can't participate in the chats yourself -- you can only watch. Viber plans to make it so you can chat too in a future update.

Talk360 does not have public chats as a feature. It is primarily designed as a calling app to connect users internationally, focusing on making affordable calls to both mobile and landline numbers.

Verdict: Which One Is Best For You?

Yolla, HelloAirDial, Rebtel, Viber, and Talk360 are all international calling solutions, but they differ in their features and target users.

Yolla focuses on low-cost calls to any phone number, with or without the app, and includes features like airtime transfer.

Key Feature: Low-cost calls to any phone number, including those without the app.

Additional Features: Airtime transfer to other users.

Target Users: Individuals needing to make calls to people without the app or needing to send
airtime.

HelloAirDial focuses on flexible, browser-based international calling to landlines and mobiles worldwide without requiring a SIM card or app download.

Key Feature: Purely browser-based calling using WebRTC technology, enabling instant international calls to real numbers from any device without an app or cellular network
Additional Features: Customizable caller ID (use public number, verify personal number, or purchase US/Canada virtual numbers), prepaid credits that never expire, call cost estimator, team accounts with shared credits, and voicemail for virtual numbers.
Target Users: Expats, freelancers, digital nomads, and small outbound sales teams. It is also built for privacy-conscious users who demand a secure, zero-friction, pay-as-you-go international calling solution without contracts.

Rebtel emphasizes high-quality calls, especially when Wi-Fi is unavailable, by routing calls through local phone lines when needed.

Key Feature: High-quality calls, especially when Wi-Fi is unavailable, by using local phone lines.

Additional Features: Free app-to-app calls and messages, no hidden charges.

Target Users: Users prioritizing reliable call quality, even in areas with poor Wi-Fi.

Viber offers free app-to-app calls and messages, along with affordable international calling to any phone number via Viber Out.

Key Feature: Free app-to-app calls and messages, with affordable international calling options
(Viber Out).

Additional Features: Group chats, stickers, file sharing, and other messaging features.

Target Users: Individuals seeking free communication with other Viber users and affordable
international calls.