As Ostrom's sole in-house designer, I took the app from simple usage tracker to full home energy management platform—while also shaping the branding and marketing assets.

Services

UX/UI
Branding
Socials
Print

Tools

Figma
Adobe Suite
Webflow

Client

Client

As Ostrom's sole in-house designer, I took the app from simple usage tracker to full home energy management platform—while also shaping the branding and marketing assets.

Services

UX/UI
Branding
Socials
Print

Tools

Figma
Adobe Suite
Webflow

Client

Client

I joined Ostrom in 2021, and as the founding designer, I designed their energy-management app from scratch.

What started as a simple tool to help users understand their energy use grew into a full energy management platform, now integrating smart features like EV charging, heating, and solar panels—all in one cohesive, easy-to-use experience. Even as it grew, the app consistently had a rating of 4.8/5 on the app store and today has over 100k downloads.


I joined Ostrom in 2021, and as the founding designer, I designed their energy-management app from scratch.

What started as a simple tool to help users understand their energy use grew into a full energy management platform, now integrating smart features like EV charging, heating, and solar panels—all in one cohesive, easy-to-use experience. Even as it grew, the app consistently had a rating of 4.8/5 on the app store and today has over 100k downloads.

users with the standard tarif can input meter readings to keep track of usage
dynamic tariff users have access to more data + filters
users with the standard tarif can input meter readings to keep track of usage
dynamic tariff users have access to more data + filters
users could connect as many devices as needed
overview screen — solar inverter
overview screen — EV charging
users could connect as many devices as needed
overview screen — solar inverter
overview screen — EV charging

As Ostrom grew, the brand needed to keep pace. I refined the logo for clarity at every size, and extended the colour palette to make the brand feel more welcoming, and designed ad campaigns (both online and OOH).

The marketing assets I designed struck a good a balance between trustworthy, transparent, and a little bit tongue-in-cheek (when appropriate). As our following and customer count grew, Ostrom brought on a social media manager who I worked with to build modular templates in figma that they could use across platforms.

I also designed merch, given away both internally and externally, and actually worn regularly (not just at work events!).

As Ostrom grew, the brand needed to keep pace. I refined the logo for clarity at every size, and extended the colour palette to make the brand feel more welcoming, and designed ad campaigns (both online and OOH).

The marketing assets I designed struck a good a balance between trustworthy, transparent, and a little bit tongue-in-cheek (when appropriate). As our following and customer count grew, Ostrom brought on a social media manager who I worked with to build modular templates in figma that they could use across platforms.

I also designed merch, given away both internally and externally, and actually worn regularly (not just at work events!).

© 2026 Taryn Hart
Impressum + Datenschutz
© 2026 Taryn Hart
Impressum + Datenschutz