For your Spidey Sense
"Zapp [is] a wholly owned, independent, subsidiary of VocaLink with separate board, management and location. VocaLink is a leader in payment innovation; designing, building and operating world-class payment systems and ATM switching platforms that in 2013 processed over 10 billion UK payments with a value of over £5 trillion. Zapp is on a mission to establish a scalable, secure, competitive and exciting new Payments Network in under three years. A system that is built on the best of scalable technology and operations, on a business model that delivers value to all stakeholders and a product experience that is easy to use and puts the consumer in more control of their finances." (Source: SomeOne project page — better explain than Zapp's own about us page)
Design by: SomeOne (London)
Opinion/Notes: You have to hand it to SomeOne: if anyone can get away with naming a visual language the "tingle" and making that visual language the equivalent of soda fizz for an ambitious payment company, it's them. The choice of a thin slab serif for the wordmark is what makes this work, allowing the tingle to light up the letters like a light bulb filament. I question how sustainable its application is in the long run and how much in the way of communication the tingle will get in but in terms of something new and identifiable there is no doubt it works.
Related Links: SomeOne project page
Select Quote: The Brand World centres around the "Tingle", a graphic representation of the feeling you get when things just work, when they go your way — the sensation you feel when annoying things just simply get out of the way. Things become easier and faster. Things work… this is the Tingle.
Logo animation. (See video below for smoother animation). 
The "Tingle" visual language. 
Sign.
Zapp promo video. Logo animation at the end. 