Mac (10000 programs)

Pros: Helps with relaxation / meditation. Easy to use. No distracting notifications. Clean interface.

Cons: Small selection of ambient noises. Doesn't have a clear easy to use system icon. No ability to import music / sounds. Needs more frequent updates.

Pros: Set hotkeys. Last.fm support. Beautiful interface.

Cons: Can't resize window. Uninstalling.

Pros: Preserves the original gameplay and atmosphere. Free to play. Nostalgic appeal.

Cons: Contains mature content.