I am an individual developer working on this app (and others focused around Music, Education and Accessibility on www.marchantpeter.co.uk) in my spare time. Thank you for using / considering this web app - I hope you find it useful.
This website uses Google Firebase Analytics to give me an idea of how many users the app has, what features are popular and how long the app is used for.
This app uses sentry.io to report crashes. This will provide me with a stack trace (details of what line of code caused the crash and how the app got to that line) - which I will use to understand the problem, try to replicate it and hopefully fix it.
Along with the stack trace, I also receive some User Agent information ie browser version etc. This helps me understand the reason for the crash.
I welcome comments and suggestions - it is encouraging to hear from users - thank you. If you choose to contact me, I will try to reply in a timely manner. I will most likely contact you again some time later when I have released an update or to let you know about progress relating to your original question.
I will not pass your details on to anyone else or use them for any other purpose.
However, I may: