PWA (120 programs)

Pros: Fantastic interface. You could find just about anything if you're lucky. Very familiar to anyone who's used an online marketplace before.

Cons: Goods and policies may differ in your area. The web interface has some problems.

Pros: Great messenger integration. Ability to start and join hangouts from app. Auto upload photos. Transparent sharing and privacy settings. Visual redesign of news feed. Animated gifs!.

Cons: Not enough users on the service.

Pros: Compatible with a variety of hardware. No ads.

Cons: Subscription required. Not compatible with Apple TV.