We have designed our apps to work for you instantly, whether you are connected to the internet or not. Any updates you make to your data will remain on your device only, until you synchronise your data with the main Cloud-based server.
If you have a wireless connection at home, it’s best to do this before you set out for the day, and again when you get home, a Wi-Fi is more reliable than mobile networks like 3G. If you have a strong mobile internet connection though, it’ll work just as well.
You can sync any time your device has access to the internet, so if you want to do this during the day, go for it.