SMS More lets you send mass text from your iPhone to groups
that you handpick. Once you create a group, you no longer
have to select contacts one-by-one to build a group. Simply
tap on the group name you are ready to send! And, if you
need to send the same message many times, just save it
as a template and, when you choose it later, it will
auto-populate your chosen text into a txt message.

You can also easily attach the address and maps link of
the current or a selected position and text contacts information.

SMS More uses your text plan to send messages and replies
are received on the Messages application as usual.