This app is extremely laggy compared to the website, there are a toon of annoying glitches in it, and it's extremely hard to export sprites. I use this app when I'm ofline but only if I need to. It's very slow and you can only make projects with under 1000 blocks, otherwise it lags like crazy. I hate it sooo much but I have to use it sometimes. Also, you can't use scratch addons on it which makes me sad. 2 stars because I need to use it ocassionally.