You can attach files (including Word, Excel etc) as well upload file from your computer/mobile device so you don't have loose that papers sitting in front of printer for long time waiting! Sometimes it doesn’t allow me add attachment or sometimes I just get an error when clicking "send". It's really simple software with no complex features which will help anyone who wants basic way how they could organize their stuffs by saving paper usage into electronic form without any need other apps - simply using this one app is enough solution because its main purpose was only sending documents not organizing them first before going digital-less style I love that you can use this app for both sending and receiving faxes. That is one thing that I don't like about other apps, you have to choose which way you want to use it. I wish they had more options. If you are looking for something cheap and easy to use, this is your best option. You can use it both ways. It's very simple to use and if you need to get a fax done quickly, this will work well.