When comparing invi vs Viber, the Slant community recommends invi for most people. In the question“What are the best messaging apps for Android?” invi is ranked 5th while Viber is ranked 6th. The most important reason people chose invi is:
The apps design has a level of care and detail put into it that is rare on Android apps. The home screen is not only beautiful, but shows useful information such as the last message sent, and the status of the person. The messaging interface itself is very clean and useful. As well as the conversation history it tells you if the recipient has read your last message, is currently reading the conversation or is replying. This makes conversations in invi very fluid as you always know the status of the recipient.
Ranked in these QuestionsQuestion Ranking
Pro Beautiful Interface
The apps design has a level of care and detail put into it that is rare on Android apps. The home screen is not only beautiful, but shows useful information such as the last message sent, and the status of the person.
The messaging interface itself is very clean and useful. As well as the conversation history it tells you if the recipient has read your last message, is currently reading the conversation or is replying. This makes conversations in invi very fluid as you always know the status of the recipient.
Pro Automatically switches between SMS and IM
invi automatically detects if you're talking to someone who's on invi, and switches between SMS and IM automatically to accommodate. That way, you get fully-featured chats when you're talking to someone who has invi, but you also get a beautiful, seamless experience when simply sending SMS messages.
Pro Makes it easy and fun to share stuff
invi makes sharing easy and fun - great to enrich conversations with stuff like YouTube clips, photos, games, web articles etc.
Pro Uses phone numbers for contacts
Invi uses your contacts phone numbers, not a app specific username or email address. This has pros and cons. On the upside it's very simple to get started as it automatically adds all your contacts who have invi installed, and if you text someone who doesn't have invi it will simply go to their normal inbox. This makes it very easy to integrate invi into your existing workflow.
On the downside you cannot chat to someone if you don't have their number (gchat friends for example).
Pro Share and consume rich media without leaving the app
The killer feature of invi is the ability to consume media in the app. For example if someone sends you a link to a Youtube video invi automatically turns it into a playable widget.
Not only can you view the media in the app, but you can also discuss the videos, photos etc while they are playing.
Pro Certain apps can be used in split screen
A collection of apps can be used in split screen view with the messenger. These are apps designed or ported specifically for invi. Some of the apps included allow browsing sites like reddit, 9gag, buzzfeed or playing games like 2048 while using the app.
Pro No need to create an account or add contacts
One of the best things about Viber is how it handles setup and sending messages. Viber uses your existing number as your ID, so you don't need to create a separate Viber account.
Pro Desktop apps allow texting, calling and enables transferring calls between devices
Viber has native apps for both Windows and Mac that allow you to send and receive messages from your desktop. You can also use the desktop to make and receive calls. Synchronizes between all devices you are using Viber on. Allows transferring calls between devices.
Pro Completely free and ad-less
Viber uses data connection and the app is free. There are also no advertisements.
Pro Supports voice calls
Viber has really well implemented voice tech. It has comparable quality to Skype and you can even tranfer calls from your phone to your desktop seamlessly.
Pro Supports 200 person group chat
Viber allows creating groups of up to 200 people on the Android version of Viber. It also has a cool "smart notifications" feature to prevent being overwhelmed with notifications if a lot of people are active in a chat group.
Pro Android Wear support
Viber includes Android Wear support on Android 4.3 or higher and Viber 5.3 or higher.
Pro Combines cellular and data messaging
This has an advantage in that if you text someone who uses Viber it will be free, if not it will just revert to SMS. This means you can replace your standard messaging app with Viber as well.
Pro Clean interface
The interface is simple, functional and intuitive.
Pro See who of your contacts is using Viber quickly
Viber is tied to your phone number so it can quickly see who else in your contacts list is using the application.
Pro Insight and well documented encryption
Viber has made a documentation available, explaining in great details their encryption system and giving good insight on how it works.
Pro Same protocol as used in Signal
Viber's protocol uses the same concepts of the "double ratchet" protocol used in Open Whisper Systems Signal application.
Pro Public chats
It's possible to be a fly on the wall on other group or one-to-one chats that have been opened up to the public. These public chats are often promotional chats with celebrities.
Pro Keys only on device
Starting with Viber 6.0 the encryption keys are stored only on the clients themselves, not even Viber itself has access to them.
Con Registration difficult for those without a phone #
For those that do not want to share their phone number or just do not have one to share, registration for invi can not be done. This means the app cannot be registered on a tablet or media device (like an iPOD touch) unless there is a number to give, of which neither of those devices when used by themselves have.
Con No group chat
Con Early in development
This app still has some rough edges and missing features (like group chat).
Con Android only
The many features cannot be used with people who aren't on Android, and you cannot login from the web.
Con The company evades U. S. tax
The company uses the common practice of tax haven addresses in order to avoid paying US taxes despite being registered in Delaware.
Con No web client
You cannot login from the web to send and receive messages.
Con Constantly on
Need apps like Greenify to stop it from being constantly on and active, even if you don't use it.
Con Constant reminders of messages
If you don't check your messages (say your in a group chat and simply don't check all of them), it will flood your notifications.