Young Forever

Firstly, this app will calculate your maximum lifespan base on your current age

Secondly, let's this app access your camera to see your emotion. If you're happy, you will add more time to your lifespan. On the contrary, if you're sad or angry, afraid, your lifespan will be reduced.

In short, if you're always happy, you'll be young forever

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This app need using your camera to see your face, and then the Artificial Intelligence (AI) will detect your emotion in order to calculate your lifespan.

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Note: Honestly, there is some limitations of this app, one of which is that if you wear glasses, it will be harder for the AI to detect your mood.