To send a message is really easy you will just need to click on this icon in the top right corner. This will then bring you to a screen where you have the option to either select a number from your contacts or just manually enter a number.
Choose to enter manually or from contacts
After you have selected your contacts that you would like you will then be brought to a screen where you are able to write your text message.
Write your message
After you have sent your message you will then be at a screen where you can see all of the messages you have sent and received from that group.
You can also get notification for when you get new messages so that you will not have to just keep checking the app.
If you go into the settings of the app by pushing this icon. You will then be sent to a screen where you can enter a name that will be used for when you send messages to other people. You can also enter your phone number so that when other people send you a message from textPlus it won't be sent to your phone but to your textPlus.
I hope that you can have fun sending messages for free from your iPhone or iPod Touch using textPlus.