No functional differences, but CashFlow Free shows advertisements.
Use data sync function with dropbox. Data format of both iOS/Android versions are totally same.
CashFlow includes internal web server, and PC is connect it via 3G or WLAN connections. To use WLAN, the iPhone and your PC must be able to directly communicate with IP addresses.
If you have trouble to connection, use Dropbox (for ver 4).
To use internal web server, check following points.
From ver 4.0, CashFlow support dropbox.
The export menu exists at each asset screen, and also assets screen.
Do export on assets screen (not on each asset screen)
The string encoding of the exported CSV file is UTF-8.
If you double click the UTF-8 CSV file with Excel, some strings may broken for some locales. To open it correctly, start Excel and open the file with specifing the string encodings to UTF-8.
You can change the currency settings in configuration menu.
Sorry, but the CashFlow does not support multiple currency.
Tap blue right arrow button on right side of the asset.
Tap the initial balance cell.