You sure do have to include a lot of features though. You've no chance if your app is a simple one because you'll get hit with one of these:
2.12: Apps that are not very useful, are simply web sites bundled as apps, or do not provide any lasting entertainment value may be rejected
In every product, there core features, then there are minor / convenience features. Let's say you have a "search" feature. That is a core part of the app / product / service. Some features that you can probably put off are: "advanced search", "refinement search", or even "sorting results". All of these are convenient, but you may want to have the app in store without these features.