Adobe announced its plans to bring a full Photoshop app to the iPad this week, and the news was received with mixed reactions. While some people are looking forward to having a more robust version of Photoshop on their Apple tablets, others were unmoved by the news, having already adopted other editing tools for the iPad. Apps including the Affinity suite and Procreate have already established themselves as reliable (if not better) Photoshop alternatives, and, most importantly, they can be bought through a one-time purchase rather than a subscription. While developers say they welcome the competition, history indicates that their reliance on one-off purchases could mean they’ll struggle to survive in the long term.