Neither of those show up in the store. Do you have the names wrong?
I would blame the windows phone store search engine for that. Here are the links
Share to Speech Lite | Windows Phone Apps+Games Store (United States)
ReadAloud | Windows Phone Apps+Games Store (United States)
Thank you for the links. The store says they both are not compatible with my phone (Lumia 822 with WP 8.0 os).
Oh I am sorry, I assumed you have 8.1. These apps require do 8.1
As the author of the Share to Speech app, I can tell you that it is unlikely that SoundGecko like app will appear.