> For an app like this, I think that’s a reasonable price.
Except that it’s not a price, it’s an access fee, and those are very different. If it were a price I’d have the thing I paid for — a binary to use as a like. Instead what I have is a token that you can revoke at any time for any reason, including you getting hit by a car or getting bored with the app.
> a low-cost subscription sets a clearer expectation that the app will continue to be maintained …
Forgive the bluntness, but it does no such thing. This app just launched. No one has reason to believe the little business behind it will still exist in 12 months. Death rate for products like this is very high. A subscription from me is a bet that you will still be around in a year, and you have zero track record.