TuneIn Radio is a popular streaming audio service that offers free and paid versions of its app, but there's something weird with the pricing today. TuneIn Pro is a bit of a juggernaut in the Play Store with between 1 and 5 million installs—huge for a paid app. It was $3.99 until today. Now? $9.99. Wishing you bought it yesterday?

 2014-07-29 15_56_57-TuneIn Radio Pro - Android Apps on Google Play

That's a big price jump, especially in the world of cheap mobile apps. We reached out to TuneIn to see if they had any comment, but no one has responded as of yet. Maybe the company is trying to push users to the free app? The free TuneIn Radio app contains ads, but there are no in-app purchases. With nothing to buy in the free app, it seems odd to make the paid version less attractive.

It's just not clear what the plan is here, but we'll update you if TuneIn gets back to us with an explanation.