Review on OnPlan by Luca Washington

I like that it's easy to use, doesn't require constant updating or new versions which can cause issues when you're working offline (for example if there isn"t wifi access).

You have limited options as far customizing your own fields goes - however this shouldn’t deter anyone considering using it since its free! We've been able to do things other systems couldn't before easily creating our own content instead of waiting weeks/months while we wait on an update being created by others just so they'll fit into their platform more closely.