App development

App development that solves real problems

We design and build practical web applications around the people who will use them. The Home Energy Audit Tool (HEAT), developed with Marches Energy Advice, helps households explore appliance electricity use, costs and potential savings.

Screenshot of the live HEAT Home Energy Audit Tool, showing options to start an energy audit or access administration.Launch the HEAT app
Explore the live Home Energy Audit Tool, created with Marches Energy Advice.

A practical app for household energy advice

Marches Energy Advice wanted a useful way for advisers and households to understand the electricity use and running costs of household appliances. HEAT turns that need into an accessible web app, allowing people to explore their household energy use and consider how changes could affect costs and carbon emissions.

Built around the way people use it

The tool supports an energy audit of household appliances, with options to compare current and planned usage and estimate annual costs and potential savings. The project also included mobile-friendly improvements, configurable appliance information and administrative tools for managing the experience.

  • Explore household appliance electricity use and costs
  • Compare current and planned usage
  • Model potential financial and carbon savings
  • Support mobile use and administration of appliance information

Developed collaboratively, from idea to live app

We worked iteratively with Marches Energy Advice, using feedback and testing to refine the experience and functionality. The finished app is live for people to use. Our approach is to understand the problem first, build around real requirements, and improve the product in collaboration with the people who know its users.

In our clients’ words

Partnerships people recommend.

Fantastic web app

★★★★★
“We are delighted with the Web App created by Adrian at MakeITaplan - the project was really well executed and right on brief. Adrian was very easy to work with and understood the various ambitions and constraints of the project. The resulting tool will be so helpful to our staff and beneficiaries. Thanks so much!”
Davina Allen · Marches Energy AdviceOct 23, 2026
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