I would use an open source version of this immediately.
I&#x27;ve written several hacked up projects using google spreadsheets and it works, but its unreliable.
I would not want to use a smaller 3rd party service as I would be afraid of the service getting shutdown or neglected.
I would be much more inclined to use and pay for this service if they also open sourced it. Maybe run it like wordpress, they make a lot of money :)