The guys who made Pipetool can kiss my ass for making such a great app and then leaving it unsupported.
Contact the developer and convey this information. They need to know that there is an audience out there who will make the app financially profitable. Otherwise, they need to put their time into something else.
You will notice that many old computer guys spend little time on phone apps. There is a reason: we recognize the software life cycle and do not want to lock our data into specialized formats.
For example, if you enter your cellar/pipe data into an Excel spreadsheet, you can export to a format that transfers to just about any other program in the universe, and by using the industry standard, you are mostly insulated against being locked out.
Apps are a bubble, like many other things. The cell phone and portable devices boom died last year, but there are still many programmers, most of whom are unschooled in the basics of computer science, generating apps that have a short life cycle of frenzied adoption, lethargy, apathy and abandonment.