The app doesn't work on iOS7.
1.Upgrade your system to iOS7.1. Previous versions of iOS7 contains bugs, Apple fixed them on iOS7.1.
2.Adjust the settings to:
  Send as SMS: ON
  Group Messaging: OFF (if available on your device)
  If you send group message instead of personalized messages. please set "iMessage" to OFF.
3.If opening a New Message window is very slow, or the messages are not sending or being received at all, please reboot the device and try again. The app will continue sending those remaining messages.

Replies to my group text goes to every recipient. How can I stop that?
Remember to set Group Messaging to OFF (if available on your device). If all recipients in the group are iMessage accounts, you should set iMessage to OFF to prevent a chat message.

Does the app have limits on the number of recipients?
The app has no limit but your device may have. On the iPhone 5 and 4s you should be able to text up to 700 at once. On the iPhone4 up to 350 at once. Older phones no more than 100 at once.

What kind of format in an Excel file does the app recognize?
1. Generally the Excel file should look something like the following:
   Message [Type the text message] 
   To 
   FirstName LastName Mobile
   [Type the recipients]
   ....
   All columns are optional except for the Mobile column.
2. You can download sample files from the website www.samapp.net.


Can the app send personalized messages ?
Yes, it can. For example, you can type "Hi {first name}, Welcome to my dinner party." in the SMS text message. The app replaces the {first name} tag with the first names of the recipients and personalizes each message.

Can the app send messages to the contacts that are not included in my iPhone's contacts list?
Yes, it can send messages to any mobile phones. You just need to add  their mobile phone numbers in the Excel file, and then import it on the [Files] page.  


Can the app send SMS in the background?
No, it is not possible to do this due to a restriction by Apple. You need to confirm each SMS.
But if you have Android phone, you could try ExcelSMS Android version. it can send SMS in background.
 


