SMS-Fast is Great!

SMS-Fast is the app for sending your SMSes lightning-fast. Everyone should buy it, but that's not happening, yet.
SMS-Fast helps you quickly get off a text message or e-mail with a few keystrokes.
The app is convenient in situations where you're not supposed to be sending an SMS, but you need to do so anyway. The app helps you send it discretely.
It's fast because you already prepared your most common messages and the people who you have most contact with through SMS.

When it comes to texting, do the following:
-Select one or more messages.
-Select one or more recipients.
-Press the SMS button.
-Press the Send button on the iPhone's message template.

Done!

You can prepare 20 messages and five contacts. 

Advantages:
-You can send a message very quickly.
-You send clearer messages by fewer spelling errors, because you do not have to write just before posting.
-You can send both SMS and email. You can decide at the last minute whether to send the message through SMS, email or even both. You lose no time if you change your mind because you don't need to switch to another app.
-You can use so-called wildcards. For example, store the message "I will arrive at # or at #." When you press the SMS button, the app will ask you to complete the message. You can then replace the #-signs with 17 and 17:30 and the message will read "I will arrive at 17 or at 17:30."
-Your message is put into your iPhone's message center, as if you had sent it with the built-in message app.
-Easy to use. Easy to prepare messages and recipients.
-It's flexible. You can add more recipients before you press Send in the iPhone's message template.
-Pleasant graphics.
-Satisfactory sounds.

Example use of wildcards: You have turned off the ringtone and taken your seat in a meeting, when a call arrives from someone you know. The call may be important, so you send: "Hello, I'm sitting in a meeting that ends at 11. Is it OK to call you then?". To quickly send this message, you may have saved these three messages:
Hello!
I'm sitting in a meeting that ends at #. (Make use of the # symbol as described above)
Is it OK to call you then?

Buy it! It's fantastic and I use it every day. In fact for all my SMSes!