Anyone who's ever seen a "slow" watch will understand this concept. It's a great way to be fully aware of the time of day, without the need to delve down into the minutes and seconds which are (for most of us) fairly irrelevant. I installed this app as a way to get the "slow" watch experience - mainly as a way of finding out if I REALLY wanted a "Slow Jo" enough to pay out the £200 asking price for it. The answer - for me at least - is a resounding "yes". (When I can afford it!) I've used the app ever since, and it's now my "main" clock. I use it on my lock screen, and I've actually removed the OEM clock from the display, meaning I have no other way to tell the time. The choices are extensive, with significant thought being given to customisation and design - you can play with the design of it for hours and still hardly scratch the surface of how customisable it is. How come it's free? What's the catch?