The Microsoft Store offers Plex for Windows for 99 cents. That's a buck under our iOS mention from last week and the lowest price we've seen for this app, which allows you to stream your music, videos, and photos from your home computer. (It's a current low by $4.)
The iTunes App Store offers downloads of ProCamera 7 for iPhone and iPod touch for 99 cents. That's a $3 drop and tied with our January mention as the lowest price we could find for this photo, video, and editing app.
IGN offers downloads of OTTTD for iPhone or iPad for free. (Click "Get My Free Game" and click the unique code to automatically download the game from iTunes.) That's $3 off and the lowest price we could find for this hybrid RTS tower defense game. Deal ends August 8.
Expedia offers downloads of Rayman Fiesta Run iPhone and iPad for free. (Scroll down to see the "Rayman Fiesta Run" app, it will be included once you download the Expedia app.) That's $3 off and the lowest price we could find.