After years of working labour and Trades jobs, I began to really appreciate the challenges that very small teams and their leaders face, from an administration perspective. These guys have to wear every hat while on the job and on the go. For example a Carpenter needs to compete and be professional like any other business leader, and this means good records, prompt follows up on leads, and solid bookkeeping.
Trying to pull all of this off on mobile is very difficult, and like many average people, I've witnessed them harness the default tools on their phone to fulfill these repetitive tasks like an in-built suite (example Reminders, Notes, Calculator, Screenshots etc).
2 years ago I started a moving company and have lived out the problems myself. The main thing I took away, and the big thing reinforced by theorists like Clayton Christensen, is that the simplicity of the current "non-solutions" which these classes of people depend on is what you're competing against not the existing complex tools that these bottom groups have never touched.
After lots of Customer Discovery and prototyping we've arrived at a focus on financial records as the linchpin in the work flow and the missing so-called default tool. That's why ZAKO is being built - to make financial records easy to manage and by doing so create a new approach to small business management.