Pseudolocalization (also know as Pseudotranslation) is one the “free” techniques less known and used in the Localization industry. To be honest I’m not sure why this happens. Getting your app (or game) localised is expensive, however Pseudolocalization is almost free. If you first pseudolocalize you can get a good overview about how well prepared is your content for a further internalisation phase. 
A few years ago I was working for a Localization vendor and I remember a client with a small budget but very smart spending every single Eur. They always asked us before starting the localization or LQA phase to perform a pseudoloc check. 
I’m going to share with you how I was doing it. This approach is still valid nowadays :)