That is the actual name of a new smartphone coming out next month in South Korea. If the game is popular enough over there, it may see a release in 2017 in Japan, North America, and Europe.
Well... they had to get their Pokemon clone out there somehow. Even if that means oddly juxtaposing Atom onto it in a way where it almost looks like a joke Photoshop edit. This is the world where Dance Dance Revolution Mario Mix exists, so I guess anything goes.
Following the same logic, we should be expecting this to hit the app store soon enough as well.
A longer trailer for the game has been released, and some YouTube channels have released gameplay video for this game, now called "Atom Catch Catch". It seems to be a simple smartphone game where Atom collects random monsters to fight other monsters. You can also play as Uran, and Leo is one of the random monsters you can use.
In that atom gameplay link, there are at one point either TWO Atom's, or is one Cobalt (riding a bicycle or scooter)? I see the 2003 version of Uran is there too.