Press kit

Slo is a sleep and focus sound app with a free browser player and mixer.

Slo is a sleep and focus sound app. It plays white, pink, brown and green noise, rain, fans, nature and café sounds. In the browser at slonoise.com, all 180 sounds are free, with no account, no download and no ads. The apps for iPhone, Android and Mac have 200+ sounds: 89 are free and the rest come with a paid upgrade.

Slo is a sleep and focus sound app for iPhone, Android, Mac and the web. It plays sleep, focus and relaxation sounds: white, pink, brown and green noise, rain, fans, nature, café sounds and more.

In the browser at slonoise.com, all 180 sounds are free, with no account, no download and no ads. The mixer layers several sounds at once, each with its own volume. A free noise generator also runs in the browser, and a sleep timer stops playback after a set time.

The apps for iPhone, Android and Mac have more than 200 sounds. 89 of them are free, and the rest come with a paid upgrade. The apps play a sound offline once it has downloaded.