■ Private File - Calculator appears to be a trivial calculator can actually store the file can not easily be found, customized to your secrets!

■ Private File - Calculator provide users easily manage private files, each time you start the application needs to be validated through authentication to access one file.

■ Private File - Calculator transfer files from computer support
◆ Connect to your computer
◆ Open the iTunes
◆ Click the device
◆ Click "Apps"
◆ Drop down to "File sharing"
◆ Select "Private File"
◆ Click "Add File..."

■ Private File - Calculator support for multiple file formats
◆ Video: .MOV .MP4 .M4V .3GP .3G2
.AVI .MPG .FLV .TS .MKV
◆ Image: .PNG .BMP .GIF .JPG .JPEG
◆ Audio: .MP3. WAV .AU .M4A .AC3
.AMR .MP2 .OGG .WMA .FLAC
◆ Document: .TXT .RTF .PDF .DOC .DOCX
.DOT .DOTX .PPT .PPTX
.XLS .XLSX .HTM .HTML