Rated 5.0 by every founder we've built for5.0 out of 5Clutch

Get a working prototype of your app for free and find out if it's worth building.

No credit card. Nothing to sign. Reviewed within 48 hours.

Prototype screenshot
Prototype screenshot
Prototype screenshot
Prototype screenshot
Prototype screenshot

100+ prototypes built free

RyzeJetbookArt DealeryAlliance TravelShopbeneOHN
Founder clicking through a prototype Clutch5.0 out of 5 Gold-Certified Bubble Agency

Join 100+ founderswho've received a working prototype for free.

With a clickable prototype in hand, founders raise faster, recruit co-founders faster, and find flaws before they cost thousands in rework.

That's right. Being able to put something real in front of a customer is the difference between an idea and a business.

But hiring an agency to build even a prototype runs $5,000 to $15,000, before anyone writes a proposal for the real thing.

That's why we're here. As part of our free-prototype program, we've helped more than 100 founders since 2025 get a working version of their app, for free.

0free prototypes we've built
0average cost an agency charges for one
$0amount we charge

We're going to let you in on a huge secret...

Most app ideas never die because they were bad. They die because the founder had to commit $10,000+ based on a Figma file and a promise.

A pitch deck just isn't going to cut it. 42% of failed startups built something nobody wanted, according to CB Insights' post-mortem analysis. A prototype you can click is how you find that out for free instead.

A working prototype running on a phone

Rated higher than agencies charging six figures.

With five-star reviews from founders on Clutch, Hill Tribe is one of the highest-rated Bubble agencies in the world. (Not sure? Just google us.)

Clutch5.0 out of 5
BubbleGold-Certified Agency
Trustpilot5.0 out of 5
UpworkTop Rated Plus

"Hill Tribe Solutions was creative, on time, and performed above and beyond."

VGVitaliy GrigorovCo-Founder, ArtdealeryClutch

"Hill Tribe Solutions' quick turnaround time for each task is impressive."

AFAdam FinebergCEO, Business Services CompanyClutch

"They were always on time, flexible, and organized."

KEKatherine EvansFounder, ShopbeneClutch

A prototype that you can actually click.

Real, working, and on your phone in 72 hours

One core flow, working

The single thing your product has to do, built end to end. Sign up, list, book, match, pay. Whatever the heart of it is.

Mobile ready

Open it on your phone. Send it to your co-founder. Put it in front of a customer this week.

Delivered in 72 hours

From kickoff call to link in your inbox. If your flow is complicated we'll say so up front and give you a real date.

Yours to keep

Hire us, hire someone else, or shelve it. What we build is yours either way, files included. Nothing to sign.

Built by a senior developer

Not an intern, not a template. The same senior developer that ships our production apps.

A straight path to production

If it works, the prototype becomes the first sprint of the real build. Nothing gets thrown away.

Bubble
"Hill Tribe Solutions is a Gold-Certified Bubble agency."Bubble Agency Directory, 2026
5.0 out of 5

Take a look at a few examples

We won't charge you

We build founders working prototypes for free that other agencies charge thousands of dollars for.

The reason we do this is simple: it's a great way for us to build relationships with founders who might hire us for the full production build as their companies grow.

More than 95% of the founders we've built prototypes for have been happy with the results, and about 1 in 5 go on to hire us for the paid build or refer friends who do.

0%Percent of founders happy with results
“Hill Tribe Solutions was creative, on time, and performed above and beyond.”
Vitaliy GrigorovCo-Founder, Artdealery
0%of applicants accepted
Apply with confidence

We accept just under 28% of applicants.

Because each free prototype gets real attention, we keep the bar high. We review every application within 24–48 hours and only take on the projects we're genuinely excited to build.

If we love your idea, we'll start building your prototype right away.

Frequently asked questions

Is it actually free, or free with strings?
Free. No card, no deposit, no contract. We cover the developer hours because this is how we win work, and we'd rather spend that time building than writing proposals.
Do I really own the prototype?
Yes, outright, files included. Hire us, hire someone else, or shelve it for a year. There is nothing to sign and no license to buy back later.
What if you take my idea?
We don't. We're a build shop, not a startup studio. Our income comes from building for founders, and a reputation for lifting ideas would end that overnight. We'll sign an NDA before the call if it helps.
What does the full build cost?
Most production builds land between $3k and $15k depending on how much the app has to do. We quote after you've seen the prototype, when we both know what we're building.

Apply Now

We'll review your application within 24 to 48 hours. If it's a fit, we'll assign a senior developer and build your prototype for free.

Clutch5.0 out of 5
BubbleGold-Certified
8+ years building on Bubble