As you may have seen in the news: iOS 9 will come with a significantly improved Notes app. This new app not only covers what mine does today but also some of the things I was planning to do in the near future. This is why I've taken the difficult decision to focus my development efforts in my upcoming, unannounced, products.
I will ensure Notio works great for iOS 9 but it will no longer receive feature updates. Once you get a chance to install iOS9, due this fall, check out the new Notes app, it's a great one.
Thanks for being a customer and looking forward to sharing more great apps with you.