What will happen when smartphones become so advanced that they could tell if you're lying?

Smartphones already know a lot of information about you and developers are looking to make them learn even more about their user. 

Some app makers are even working on technology that can recognize a face or voice (in real life or on-screen). They are also working for the technology to analyze facial expressions with the ability to detect emotions - possibly including the white lies many people thing on a daily basis, reports Washington Post.

Google Glass, for example, could be getting facial recognition software soon. Developers are using the common facial cues for emotions such as anger to teach the device to detect different emotions, Singularity Hub reports. 

Law enforcement officials and poker players among others use facial expressions as cues to tell if someone is lying. If phones could detect facial expressions, they presumably could detect when someone is lying as well.

As some point most people could admit saying "it was great seeing you," "I recognize you," or even the famous "we should get together sometime!" and not meaning it. The person you're communicating with may not always pick up on the white lie, but it may be a little more challenging to lie to technology that is busy calculating the emotions on your face on a daily basis.

Although the apps seem like they could cause problems, there are some parts of life where the technology could come in handy. 

Once these lie detecting applications hit the ground running, they could change the dynamics of political elections dramatically since the public could see through the lies in a campaign easier.