Addition of ads is unacceptable – Terminology Dictionary Review

I purchased this app a few years ago. The app I purchased had no ads. This most recent update has introduced Ads with a paywall to remove them. I would be happy to consider purchasing an updated version of this app, but that is my choice to make and I should be able to use the existing app I paid for, with the Ad free experience I had paid for. Cramming ads into an app I paid for is absolutely unacceptable. I no longer recommend or use this developer's apps due to what I consider an example of unethical business conduct, and there is no assurance their next app updates won't follow the same Ad IAP scheme.
Review by MCMphd on Terminology Dictionary.