Your App Development Partner

Underbelly is an award-winning app development company in the heart of Silicon Slopes. We design & build digital products used by millions of people each day.

(801) 997-9263

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4.9

from 20+ reviews on Google

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Design and build with Underbelly

Scale your team as needed with Underbelly's expert product designers, engineers, and product managers. App development with us is a hands-on collaboration between you and our dedicated team. We'll plan, design, build and release your app to market cheaper and faster.

What our clients say

Testimonials from some of our amazing customers.

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Founder

Underbelly is the rare team talented and nimble enough to move at the pace of ambitious, fast-moving companies. Hire them!

Chelsea Allison

CMAND

Co-Founder

Underbelly’s ability to create cohesive branding through design systems, authentic video, and rich content that enhances an in-person experience is everything we were looking for in a partnership with helping Front’s brand presence to continue to grow along with our events.

Ben Peck

The Front Conference

Co-Founder

We initially selected Underbelly because, as a new company, we wanted a partner who was willing to start small with us. As we've grown, Underbelly has consistently met our needs and exceeded our expectations.

Brian Lovett

Trellis Rx

Product Owner

"It has been wonderful working with Underbelly and we are so grateful for the time and attention of your team."

Lauren Jonas

Sparked

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Highlights from our impact

We don’t just create brands that look good—we build brands that perform. Here’s what strategy-led branding has done for our clients:

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48,000

New visitors in 2 weeks

The new website received over 48,000 visitors during the launch with 21% of users opting in for future communications.

BibleProject

109%

increase in store trafic

Through this long-term collaboration, they were able to release a series of updates that increased traffic to their store.

Vivint

16%

Increase in conversion rates

After simplifying the user experience and updating the entry point, the conversion rate increased from 2.8% to 19%!

Facebook

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Join over 900+ companies already working with Underbelly.

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How it works

Schedule a free consultation

1
Schedule a call We'll listen to your goals and uncover what’s holding your brand back.
2
Tell us your idea and we'll develop a custom approach that works for you.
3
Tell us your idea and we'll develop a custom approach that works for you.

Case Studies

See our results

Square Product Design

Team Augmentation

Product Design

Helping businesses manage risk with a new risk tool

Tuned

Product Design

The Tuned app is new on the scene and offers a unique way for couples to feel connected to each other in a personal, digital space. Couples on Tuned can use a variety of features designed to help them express their creativity and share their warm, fuzzy feelings with their partners.