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RapidDev - Software Development Agency
App developers in Denver, CO

Mobile & web app development in Denver

RapidDev builds custom mobile and web apps in Denver, typically shipping a production MVP in 6–12 weeks for a fixed $13,000–$25,000. That is a fraction of the cost of hiring an in-house team on the Front Range (roughly $360,000–$395,000 in true first-year cost for two engineers) or commissioning a Denver agency ($120,000–$400,000 per build). One team ships the iOS app, the Android app, and the web app on shared infrastructure, and the founder owns all of the code.

One team for your iOS, Android, and web build. We help Denver and Front Range founders go from Figma or a Lovable prototype to a production app your users — and your investors — actually trust.

  • 600+ apps shipped
  • 4.9 on Clutch
  • Techstars & seed-stage friendly
  • Fixed-price, no surprises
4.9Clutch rating
600+Happy partners
17+Countries served
190+Team members

Why building in Denver is different

Denver has quietly become one of the strongest startup metros between the coasts — the region raised roughly $4 billion across 220-plus companies in 2025, ranking ahead of Chicago and just behind Austin. But it builds with a different discipline than the Bay Area: office space and engineering talent cost 40–60% less than San Francisco or New York, runways stretch further, and founders are rewarded for shipping capital-efficient products rather than torching a raise. Denver's funding also skews toward hard, real-world sectors — AI applied to energy and health, climate and clean tech, aerospace, and outdoor recreation — where a working product beats a slide deck. We build for that reality: the polish that survives an investor meeting, the architecture that survives technical diligence, and the speed that keeps a lean team moving.

Techstars is headquartered here

Techstars — one of the most influential accelerators in the world, with 3,500+ companies backed globally — is headquartered in Denver, and its Boulder program has run since 2007. When you're in a batch, everyone around you is shipping on the same compressed clock. We've shipped for teams racing exactly that kind of demo deadline.

Denver Startup Week sets the pace

Every September, Denver Startup Week draws tens of thousands of founders and operators as the largest free entrepreneurship event in North America, and effectively every Colorado investor is in the room. It's a hard, public checkpoint — and the version of your product you show there needs to be real, not a mockup.

Capital-efficient by default

Denver founders raise smaller rounds and stretch them further than coastal peers, so every dollar of build spend has to earn its place. A fixed-price v1 that ships in weeks — instead of an open-ended in-house payroll — is the model that fits the way the Front Range actually funds companies.

Hard-tech and health cluster

Colorado has the nation's second-largest aerospace economy, a fast-growing cleantech scene, and a health-tech cluster anchored by the Anschutz Medical Campus in Aurora. These are product categories where compliance, telemetry, and real data models matter from day one — exactly the foundations we build in rather than bolt on later.

the Front Range by the numbers

Denver-area venture funding raised in 2025
$4B+
Denver-area venture funding raised in 2025
Growth List / Denver startup funding data, 2026
Denver companies that raised in 2025
220+
Denver companies that raised in 2025
Growth List, 2026
US aerospace economy — Colorado, behind California
#2
US aerospace economy — Colorado, behind California
Colorado aerospace economy data, 2025
Space-related jobs across Colorado
190,000+
Space-related jobs across Colorado
Colorado aerospace economy data, 2025
Lower office & talent cost vs. San Francisco or NYC
40–60%
Lower office & talent cost vs. San Francisco or NYC
Denver innovation ecosystem analysis, 2025
Companies backed by Denver-HQ'd Techstars globally
3,500+
Companies backed by Denver-HQ'd Techstars globally
Techstars, 2025

Who we build for in the Front Range

Climate & Clean Energy

Grid, solar, and carbon apps for the Front Range cleantech scene — the sector that pulled nearly $1B in Denver funding in 2025.

Digital Health

HIPAA-aware patient and provider apps for the health-tech cluster anchored by the Anschutz Medical Campus in Aurora.

AI & ML

LLM-powered products with streaming UIs and usage-based billing — Denver's biggest funding category, applied to energy, health, and education.

Aerospace & Space

Ground-control dashboards, fleet telemetry, and mission tooling for Colorado's aerospace corridor — second only to California nationally.

B2B SaaS

Multi-tenant dashboards, admin panels, and role-based access for the Front Range's deep bench of capital-efficient vertical SaaS teams.

Outdoor & Recreation

Trip planning, booking, and gear marketplaces for Colorado's outdoor-recreation economy — a category that punches far above its national weight here.

What kind of apps can you build in Denver?

RapidDev builds native and cross-platform mobile apps, Next.js web apps and dashboards, full MVP-to-scale product builds, and production AI features for Denver founders — mobile and web ship from one team on shared infrastructure.

No stitching together an app shop and a web agency. We scope and ship your iOS, Android, and web product on shared infrastructure — so everything actually works together.

Mobile

Native & cross-platform mobile apps

One codebase, both stores. We build React Native and Expo apps that pass App Store and Play Store review the first time, with the native feel your users expect.

  • iOS + Android from a single React Native / Expo codebase
  • Push notifications, offline mode, and deep linking
  • App Store & Play Store submission handled end-to-end
  • Crash reporting, analytics, and OTA update pipeline
Web

Web apps & dashboards

Fast, SEO-ready web apps on Next.js. From investor-facing marketing sites to the logged-in product itself — dashboards, admin panels, telemetry views, and customer portals.

  • Next.js app with server rendering and clean SEO
  • Role-based dashboards and internal admin tooling
  • Stripe billing, subscriptions, and usage metering
  • Analytics, A/B testing, and conversion instrumentation
Mobile + Web

MVP-to-scale product builds

The whole thing, mobile and web, on shared infrastructure. Ideal when you're moving off a Lovable or Bubble prototype that's hit its ceiling and need production code that raises well.

  • Shared Supabase / Postgres backend across web + mobile
  • Auth, payments, and a real data model built to scale
  • Migration off no-code prototypes without losing your data
  • Handover docs so your future in-house team can take over
Mobile + Web

AI features & integrations

Ship the AI feature your product actually needs — chat, search, or agents — wired to your data with streaming, evals, and cost controls, not a demo that falls over.

  • LLM chat, RAG, and semantic search over your own data
  • Streaming UIs on both web and mobile
  • Usage-based billing and per-customer cost guardrails
  • Evals and monitoring so quality doesn't drift

How we work — no black boxes

You see a working, deployed build every single week. Here's the exact path from a first call to a launched app — five steps, no surprises.

  1. Step 145 min

    Free scope call

    We map your idea (or your stuck prototype) to a concrete feature list, a fixed price, and a timeline. You leave with a plan whether or not you hire us.

    What you get

    A fixed price + timeline

  2. Step 2Week 1–2

    Design & architecture

    Clickable Figma flows and a technical architecture you sign off on before a line of production code is written. No surprises later.

    What you get

    Clickable Figma + signed-off architecture

  3. Step 3Week 2–10

    Build in weekly sprints

    You get a working, deployed build every single week — not a black box. Test on real devices, give feedback, watch it take shape.

    What you get

    A deployed build every week

  4. Step 4Final week

    Launch & handover

    We handle App Store and Play Store submission, production deploy, and a full handover — code, docs, and access are yours to keep.

    What you get

    Live app + all code and access

  5. Step 5Optional

    Ongoing support

    Keep us on a retainer for new features and fixes, or take the wheel with your own team. Your call — we don't lock you in.

    What you get

    A retainer — or a clean exit

The stack we build on

Production-grade, boring-in-the-best-way tools that your future in-house team can hire for and maintain. No lock-in, no proprietary magic.

React NativeMobile
ExpoMobile
Swift / KotlinMobile
Next.jsFrontend
ReactFrontend
TypeScriptFrontend
Node.jsBackend
SupabaseBackend
PostgreSQLDatabase
Clerk / Auth.jsAuth
VercelHosting
OpenAI / AnthropicAI
StripePayments

How much does it cost to build an app in Denver?

Building a custom app in Denver costs anywhere from $13,000 with RapidDev to over $400,000 with a large agency, depending on who builds it. Here is the honest math on the four realistic paths — with real 2025–2026 Denver numbers, not a vendor's guesswork.

Hire a team in-house in Denver

~$360K – $395K / yr

true first-year cost of a minimal 2-engineer team

3–5 months just to hire, then build
  • Full-time institutional knowledge stays in-house
  • Direct control over roadmap and priorities
  • Right long-term move once you're past product-market fit
  • Denver base salaries run ~$123K–$143K each — loaded cost is ~1.4x with benefits, payroll tax, equity and tooling
  • Senior engineers take 50–70 days to fill, plus 15–30% recruiter fees per hire
  • You're paying full salaries for months before a single feature ships
  • Two people can't cover iOS, Android, web, design and DevOps

Denver / US agency

$120K – $400K+

typical price for a comparable custom build

4–9 months
  • Deep bench, senior talent, established process
  • Can handle very large, complex enterprise scope
  • 5–15x our price for a comparable v1 — you fund their overhead and account managers
  • Long timelines and heavyweight process before anything ships
  • Change requests are billed; scope creep gets expensive fast
  • Overkill for a founder shipping a fundable v1

Offshore / freelance

$25 – $50 / hr

typical Eastern Europe / LatAm blended rate

Highly variable — often 2–3x quoted
  • Lowest sticker price per hour
  • Fine for well-specced, low-risk pieces of work
  • Timezone gaps turn a one-day fix into a week
  • Rework is common — cheap hourly gets expensive when it's built twice
  • IP ownership and security review often can't survive investor diligence
  • No single accountable owner when something breaks
Our recommendation

RapidDev

$13K – $25K

fixed price, quoted before we start

6–12 weeks to a live, submitted app
  • Fixed price with no hourly billing and no surprises
  • One team ships iOS, Android, web and design together
  • A working, deployed build every single week
  • Production-grade code you own outright — investor-diligence ready
  • 10–30x cheaper than in-house or agency for a comparable v1
  • Not the right fit for a 30-engineer enterprise platform build
  • Best for a focused, fundable v1 — not an open-ended R&D contract
Book a free scope call
Cost and timeline to build a custom app in Denver: hiring in-house versus an agency, offshore, or RapidDev.
PathTypical costTime to first shipped product
Hire a team in-house in Denver~$360K – $395K / yr3–5 months just to hire, then build
Denver / US agency$120K – $400K+4–9 months
Offshore / freelance$25 – $50 / hrHighly variable — often 2–3x quoted
RapidDev$13K – $25K6–12 weeks to a live, submitted app

The numbers behind this, sourced

$133K
Denver full-stack developer average base salary
Indeed, 2026
$142K
Greater Denver software engineer average salary
Built In Colorado, 2026
$123K
Denver iOS developer average base salary
Indeed, 2026
$57.85 / hr
Colorado React Native developer average hourly pay
ZipRecruiter, 2026
50–70 days
Time to fill a senior engineering role
SHRM Benchmarking, 2025
15–30%
Recruiter fee on first-year salary, per hire
Dover / daily.dev, 2025

For the price of two to three months of one Denver engineer's loaded salary, RapidDev ships your entire app — mobile, web, and backend — in 6 to 12 weeks.

What does app development cost in Denver?

App development in Denver with RapidDev costs a fixed $13,000–$25,000, quoted before any code is written rather than billed by the hour. A focused single-platform MVP starts at $13,000; a full mobile-plus-web product with payments and AI features runs up to $25,000.

You get a fixed price before we write a line of code — quoted, not billed by the hour. Every Denver build lands in the $13K–$25K range depending on scope.

Focused MVP

$13K – $16K
4–6 weeks

Solo founders and pre-seed teams validating one core flow with real users.

  • One platform — web or mobile
  • Core feature set, auth, and a clean UI
  • Deployed to production + store submission
  • Weekly builds and a working demo every sprint
Book a free scope call
Most popular

Launch-ready product

$17K – $21K
6–9 weeks

Seed-stage startups shipping a fundable v1 to the App Store and the web.

  • Mobile + web on shared infrastructure
  • Payments, notifications, and analytics wired in
  • Design system and investor-ready polish
  • App Store & Play Store submission handled
Book a free scope call

Scale build

$22K – $25K
9–12 weeks

Growth-stage teams replacing a no-code MVP or adding serious AI features.

  • Complex data models, roles, and admin tooling
  • AI features with evals and cost controls
  • Migration off Lovable / Bubble / Bolt prototypes
  • Full handover docs for your in-house team
Book a free scope call

Recent work in the Front Range

A few of the builds we've shipped for Denver founders. Details generalized to protect client confidentiality.

Climate & Clean Energy
8 wksprototype → paying users

Challenge: A Front Range cleantech founder had a Lovable prototype for a home-energy tracking app but couldn't move real utility data through it or bill customers.

What we shipped: We rebuilt the backend on Supabase with real RLS, wired in a proper data model for meter reads, and shipped native iOS + Android with Stripe subscriptions.

React NativeSupabaseStripe
Digital Health
0downtime during pilot launch

Challenge: A team near the Anschutz Medical Campus had a provider-facing dashboard demo that fell over under real patient volume and had no audit trail.

What we shipped: We shipped a Next.js provider portal with role-based access, HIPAA-aware logging, and a Postgres schema that held up when their first clinic pilot went live.

Next.jsPostgreSQLClerk
Aerospace & Space
3.1xfaster live-data render

Challenge: A Denver aerospace team had outgrown a Bubble MVP for fleet telemetry — every new feature broke two others and streaming data was impossible.

What we shipped: We migrated their data into a proper Postgres schema and rebuilt the product on Next.js with a streaming dashboard, so they could finally hire and scale.

Next.jsPostgreSQLSupabase

The team behind your build

190+ people across 17 countries, a 4.9 rating on Clutch, and 600+ apps shipped. Here's the leadership standing behind your build.

Matt Graham, CEO & Founder at RapidDev

Matt Graham

CEO & Founder

Founder of RapidDev, a global software firm whose team has delivered 1,000+ client projects. He helps founders cut through the hype and ship practical, production-grade software — fast.

Columbia University · Harvard Business School · U.S. Navy veteran · 1,000+ client projects

Matt on LinkedIn

Anna

COO

Runs operations across RapidDev's 190+ person, 17-country team — the person making sure your build ships on time and on scope.

Craig

CTO

Owns the technical bar for every build: the architecture, code quality, and security review that has to survive investor diligence.

Maria

Dev Lead

Leads the engineers who ship your weekly builds across iOS, Android, and web on shared infrastructure.

Frequently asked questions

Do you build both the iOS/Android app and the web app, or just one?

Both — that's the whole point of working with us instead of stitching two vendors together. We build your mobile app (iOS and Android from one React Native codebase) and your web app on shared infrastructure, so your data, auth, and payments live in one place instead of three.

We built a prototype in Lovable / Bubble / Bolt. Can you take it over?

Yes, and it's one of the most common reasons Denver founders come to us. No-code prototypes are great for validation but hit a ceiling on security, scale, and hiring. We migrate your data into a real database and rebuild the product in production-grade code you own — usually without losing any of your existing data.

How much does an app cost, and how is it priced?

Most builds land between $13,000 and $25,000, quoted as a fixed price before we start — not billed by the hour. After a free 45-minute scope call we send a concrete feature list, price, and timeline. The band depends on scope: a focused single-platform MVP sits near the bottom, a full mobile + web product with payments and AI features toward the top.

How long does it take to launch?

Typically 6–12 weeks from kickoff to a live, submitted app. A focused MVP can ship in 4–6 weeks; a full mobile + web product with AI features runs closer to 9–12. You get a working, deployed build every week, so you're never waiting months to see progress.

Do we need to meet in person in Denver?

No — we work with Front Range founders remotely and asynchronously, which is how most Denver teams already operate. You'll have a dedicated point of contact, weekly demos, and a shared board. If you prefer a video kickoff or working sessions, we're happy to schedule around Mountain Time.

Who owns the code and the App Store accounts?

You do — completely. The code lives in your GitHub, the App Store and Play Store listings are under your accounts, and we hand over full documentation at launch. We never hold your product hostage, and you're free to bring the work in-house or hire your own team whenever you want.

Can you help us ship something investor-ready before Denver Startup Week or a raise?

That's a big part of what we do for seed and growth-stage teams here. Colorado investors expect a real product they can put in front of users, not a clickable mockup — so we prioritize the flows that demo well, ship App-Store-quality polish, and make sure the architecture holds up to technical diligence. Many of our Front Range clients raise on the version we ship.

What if we're not technical? Can we still work with you?

Absolutely — most of the founders we work with are non-technical or first-time technical founders. We handle every technical decision, explain trade-offs in plain English, and give you a product you can maintain or hand to a future CTO. You focus on customers and fundraising; we handle the build.

How can you be so much cheaper than hiring in-house or a Denver agency?

It comes down to structure, not corners cut. We scope a fixed set of features up front, so there is no open-ended hourly meter. A small, senior-only team does the work directly — you are not paying for account managers, sales overhead, or junior engineers learning on your budget. And we reuse hardened production patterns for auth, payments, and infrastructure instead of rebuilding them from scratch each time. An in-house Denver team carries full salaries near $130K each, benefits, and months of ramp-up before anything ships; an agency layers overhead on top of the build. We simply do not carry those costs.

What happens if something breaks after launch?

Every build includes a 30-day bug-fix window after launch — if something we shipped breaks, we fix it at no extra cost. Beyond that, you can keep us on an optional monthly support retainer for ongoing fixes and new features, or take the code in-house and maintain it yourself. You own the code either way, so you are never locked in.

What if I want to change something mid-build?

Small adjustments within the agreed scope are just part of the weekly sprint — you review a working build every week and give feedback we fold in. If you want to add or swap something bigger that changes the scope, we handle it with a simple change order: we tell you the price and timeline impact before doing the work, you approve it, and only then do we build it. No surprise invoices, and no silent scope creep.

Book your free scope call

Pick a time and get your fixed price

Grab a 45-minute slot with our team below. We'll map your idea — or your stuck Denver prototype — to a concrete feature list, a fixed $13K–$25K price, and a timeline. You walk away with a real plan either way.

  • A free 45-minute scope call — no obligation, no sales pressure
  • A fixed price and timeline before any code is written
  • You leave with a concrete plan, whether or not you hire us

Prefer email? Contact us instead.

On the map in Denver

Find RapidDev in Denver

We serve founders across Denver and the Front Range — from first scope call to a launched, submitted app. Our Google Business Profile below is the quickest way to see us on the map, save us for later, or leave a review after we ship.

View our Denver profile on Google Maps

Remote-friendly · Serving the greater the Front Range area

Ready to build your app in Denver?

Book a free 45-minute scope call. You'll walk away with a concrete feature list, a fixed price, and a timeline — whether or not you decide to work with us.

Serving Denver and the Front Range · Remote-friendly · You own everything we build

We put the rapid in RapidDev

Need a dedicated strategic tech and growth partner? Discover what RapidDev can do for your business! Book a call with our team to schedule a free, no-obligation consultation. We'll discuss your project and provide a custom quote at no cost.