The Situation

PreVeil, a cyber-security company, was founded on the vision of empowering businesses to protect their online communications with a new form of end-to-end encryption. After validating early prototypes for encrypted email and cloud storage on the desktop, the team at PreVeil set their sights on building out a mobile experience that enabled their customers to communicate securely on the go.

My Solution

I led my team at Nonfiction through a UX design process that included research, rapid iteration of design concepts, and customer validation of designs. We worked with engineers at PreVeil to launch full-featured Android and iPhone apps that included end-to-end encrypted email, file sharing, and account management. Despite the complexity of the underlying encryption technology, the designs created a simple, user-friendly experience that could be embraced by non-technical customers.

  • I worked with the founders at PreVeil to define their target audience.
  • I conducted competitive analysis of existing email, file sharing, and chat products.
  • I documented user flows and worked with product management to prioritize requirements.
  • I created storyboards, wireframes, and clickable Invision prototypes.
  • I designed interfaces for iOS and Android and documented a unified design system.
  • I gathered feedback on design and functionality from target customers through interviews and contextual inquiry.
  • I released additional features and made iterative improvements as a part of the engineering team’s continuous release cycle.


  • PreVeil was named a 2018 startup to watch. Read more on BostonInno.

What I Did

  • Research
  • User Flows
  • Storyboarding
  • Prototyping
  • UI Design
  • User Validation

Sketching and sketching and sketching.

The existing desktop experience was evaluated prior to beginning the mobile apps.

Early wireframes focused on primary use cases.

The interface was designed through an Agile process, iterating through a backlog of features user flow by user flow.

Interface designs for search in mail.

Interface designs for document management.

Interface designs for securely transfering encryption keys to a new device.

The UI design process generated a library of atomic Sketch components.

The PreVeil design system is versioned and shared with the team through Abstract.

While some designers can be militant, Mike’s approach is more enabling. His designs are well thought out, and he’s receptive to our feedback and collaboration.
Ben Fichter, Mobile Developer

Ben Fichter, Mobile Developer PreVeil