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Case study 04 · iOS and Android app

innosvět app

Complex energy data, made clear and even motivating.

Client
innogy
Role
UX designer, leading the UX of the project

What I did

Led the UX on iOS and Android, from research and user flows to prototypes and usability tests, in close collaboration with developers on both platforms.

  • UX leadership
  • User testing
  • Data analysis
  • Prototyping
  • Axure RP
  • Figma
innosvět app screen comparing expected and measured gas costs on a chart, with a predicted overpayment of 236 CZK

Impact

active users
78k
rating on Google Play (October 2019)
4.6
rating on the App Store (October 2019)
4.5

01

Context and problem

innogy wanted an iOS and Android app that shows real-time energy consumption, billing information and smart insights, with more features planned along the way.

The challenge was to present complex data through a clean interface that feels simple, even to someone opening the app for the very first time. The bigger aim: make unexpected gas bills a thing of the past.

02

Research and discovery

Research into what users really need pointed to three things: usage trends, bill reminders and a quick way to contact support.

03

Key decisions

  1. 01

    Expected versus measured

    Problem
    People often found out only at the final bill that their monthly payments had been too low.
    Decision
    A chart compares expected and measured costs and predicts the result in advance.
    Why
    People can adjust their monthly payments before a surprise bill arrives.
  2. 02

    Reminders instead of surprises

    Problem
    Bills and changes in usage are easy to miss when nobody checks an energy app every day.
    Decision
    User flows for bill reminders, push notifications and usage comparisons.
    Why
    Research showed reminders were among the things people needed most.
  3. 03

    A quick way to get help

    Problem
    When something looks wrong on a bill, people want answers fast.
    Decision
    A short, step-by-step route to customer support, prototyped in Axure.
    Why
    Quick contact with support was one of the top needs the research uncovered.

04

Validation

Prototypes and usability tests refined the navigation and the dashboard before release.

“This system helped me very much to see how much I need to adjust my monthly payments.”

Ziva Klausberger, innosvět user

Recognition

  • 3rd place

    Effie Awards Czech Republic

    Other services

    Effie Awards 2018

Explore more

What I learned

Complex data can be made clear and even motivating. The project also grew my soft skills, above all communicating with the team and the client to reach decisions that benefit both sides.