Since we will only ever link to the official website, source, store, or app listing we can ensure that, as far as security goes, your security is in good hands. This does not necessarily guarantee that all evil is expunged from the app but it’s a good start.
Some other app portal sites may provide standalone installable files, such as APK or EXE. We would advise against installing these. Even if they are the original signed binary, it is doing a disfavour to the developer not crediting the developer’s website or linking to the source the developer advises. Likewise, the only way to ensure access to the latest file is to get it directly from the developer.