This is an excellent little app I have been using for years now and have sent the ocassional donation.
I do not know the developer from Adam. If you have found this app useful I strongly encourage you to do the honourable thing and make a donation to reward him for his work. Please, in life, do not just take from folk without giving something in return. If you genuinely can't afford anything then I'm sure an appreciated comment will be gratefully received. All the best to one and all.