AT&T Wireless currently has two text messaging plans.
1. $10 per month gets you 1,000 messages.
2. $20 per month gets you unlimited messages.
Guess which option is going to disappear in a few days?
AT&T streamlining individual messaging plans August 21st, leaving unlimited as the sole survivor (Engadget)
So, what if you don’t want to pay $20 per month for unlimited messaging. AT&T has a per message plan that costs 20 cents per message (1,000 messages = $200).
There are three free alternatives for both Android and iPhone. However, they all involve a bit of retraining your messaging contacts.
1. Google Voice is tired to a Gmail account. Apps are available for both Android and iPhone that lets you send and receive unlimited text messages for free. You can also send and receive text messages on a desktop using the Google Voice web interface.
2. Google+ Huddle is a messaging option in the Google+ apps for Android and iPhone. Messages can be sent to Google+ accounts as well as mobile phones. Huddle does not, however, have a desktop interface. It supports group messaging.
3. Facebook Messenger supports all of Facebook’s usual messaging options and adds the ability to send messages to phones as text messages. Like Google+ Huddle, it supports group messaging.
All three services are free.