I have used Familyecho for many years and would definitely recommend it had it not been for some major issues which were brought to my attention and wanted to know if you can resolve.
Firstly, shareable links cannot be disabled. This means that it could potentially lead to a General Data Protection Regulation nightmare given that links can be easily mirrored; people with links can download a version which can be accessed offline and won't get disabled.
This is a major concern and I would really appreciate it if you could do something about this, as apart from this, it's a great genealogy tool but would have to discontinue use as these privacy issues are major concerns.
Please get in touch about this as soon as you can.