Top App & Web Developers in Jupiter
Jupiter's biggest employers are a hospital, a security-services headquarters and a distribution center, with an innovation hub in nearby Juno Beach. App369 builds mobile apps, web platforms, backends and AI features for northern Palm Beach County, remotely from Boynton Beach.
App369 is a founder-led software studio based in Boynton Beach, Florida (Palm Beach County). We build custom mobile apps, web platforms and AI features for businesses in Jupiter and beyond, working remotely on Eastern Time.

- Fiverr
- 5.0 · 126 reviews
- Own product
- Workspace369
- Fixed-price offers from
- $450
A Palm Beach County developer for Jupiter
About 45 minutes by car from Boynton Beach (roughly 33 miles via I-95 or the Turnpike off-peak; approximate). App369 has no office in Jupiter; we work remotely and asynchronously on Eastern Time.
Starting something local? See our Palm Beach County tech and startup resources guide and our shortlist of app developers in Palm Beach County.
Jupiter business context
Jupiter's largest employers are in health care, security services and distribution. A business here is often a medical practice, a marine or hospitality company, or a supplier to those employers, and the software work tends to be scheduling, patient or customer portals and field tools.
Major local employers
- Jupiter Medical Center. About 2,540 employees.
- Allied Universal Security Services (headquarters). About 1,451 employees.
- Walgreens Distribution. About 600 employees in Jupiter.
- PSM, a Hanwha company. Turbine parts manufacturing, about 380 employees.
- NextEra Energy, parent of FPL (Juno Beach). About 5,598 employees (company figure as listed by the BDB); headquarters a few miles south.
Resources for Jupiter founders and businesses
- 35 Mules
NextEra Energy/FPL innovation hub in Juno Beach offering rent-free workspace and a $100,000 non-dilutive grant for accepted startups.
- Palm Beach North Chamber of Commerce
Serves the northern county from Palm Beach Gardens, the next city south.
- Florida SBDC at FAU
Free consulting; ask about remote sessions.
We could not confirm an independent coworking space with its own website in Jupiter (see the resources guide).
These are independent organizations; listing them is not an endorsement or a partnership claim. Confirm details with each one before you apply.
Projects that fit Jupiter
Medical and wellness practices that want booking, intake and follow-up in one app
Marine, charter and hospitality businesses with seasonal demand
Suppliers to the area's large employers who need quoting or order-tracking tools
Why Jupiter Businesses Choose App369
What Jupiter teams should know before working with App369.
Jupiter is the northern end of the county, about 45 minutes from our Boynton Beach base, so remote collaboration is the default
Large local employers include Jupiter Medical Center, Allied Universal and a Walgreens distribution center
NextEra Energy's headquarters and the 35 Mules innovation hub are next door in Juno Beach
Fixed-price starting offers from $450 and larger projects with a 50% upfront, 50% on delivery payment split
Related Markets Around Jupiter
Nearby cities and the county hub, for context on neighboring markets.
Palm Beach County
App369 builds custom mobile apps, web platforms, backends and AI features for Palm Beach County businesses and founders. Based in Boynton Beach, serving the county remotely with in-person meetings by arrangement.
Palm Beach Gardens
App369 builds custom mobile apps, web platforms, backends and AI features for Palm Beach Gardens businesses. Remote-first and founder-led from Boynton Beach, with in-person meetings in Palm Beach County by arrangement.
Software Development Services in Jupiter
From marine and hospitality businesses along the Intracoastal to medical practices near Jupiter Medical Center, we build software for Jupiter teams that work remotely with us from the start.
Mobile Apps
iOS and Android apps built with Flutter from one codebase, from concept to App Store launch.
Web Development
Fast websites and web applications, built for search and for phones first.
Custom Software
Internal tools, integrations and back-office systems engineered around how your team already works.
Our 4-Phase Development Process
A written scope and four clear phases keep Jupiter projects predictable.
Discovery
Understanding your vision, goals, and market requirements through stakeholder interviews and competitive analysis.
Design
Creating clear UI/UX with interactive prototypes you can click through before we build.
Development
Building with Flutter, Vue.js, Node.js, and GCP using 2-week Agile sprints with weekly milestone reviews.
Launch
Deployment to production with crash and uptime monitoring and ongoing maintenance.
Frequently Asked Questions
Can we meet in person in Jupiter?
Honest answer: we are remote-first. App369 works remotely and asynchronously from Boynton Beach, with written updates and shared progress builds. In-person meetings anywhere in Palm Beach County are possible by arrangement; ask when you contact us. Jupiter is roughly 45 minutes from our base (approximate), so most Jupiter clients work with us by video and written updates.
Is App369 a Jupiter company?
No. App369 is based in Boynton Beach, in southern Palm Beach County. We serve Jupiter clients remotely and have no office in Jupiter.
Is there startup support near Jupiter?
35 Mules in Juno Beach, a few miles south, offers rent-free workspace and a $100,000 non-dilutive grant for startups it accepts. Details and eligibility are on its website, and we list it in our Palm Beach County resources guide.
How long does a typical project take?
It depends on scope. As a rough guide, a marketing website takes 4-8 weeks, a web application 2-4 months, and a mobile app 3-6 months. Every Jupiter project starts with a written scope and milestone plan, so you know the timeline before any build work starts.
Do you provide ongoing support?
Yes. After launch we offer maintenance that covers bug fixes, iOS and Android OS updates, security patches, dependency upgrades and small feature work, so your Jupiter app keeps working as the platforms change.
What's your pricing model?
App369 uses project-based pricing with a 50/50 payment structure: 50% upfront and 50% on completion. Current ranges are published on our fee structure page, and smaller fixed-price packages are available for well-defined work.
Can you work with existing projects?
Yes. We take over existing codebases, especially Flutter and Firebase apps, for code audits, bug fixes, new features and migrations. Jupiter businesses with an app that stalled or a developer who left can start with an audit before committing to a larger build.

Simon Dziak
As founder of App369, I personally oversee every project we take on, from scoping to launch. I build with Flutter, Firebase and Google Cloud, and I also built and run Workspace369, a client-management platform for freelancers and small businesses. Based in Boynton Beach, Florida, we serve clients across Jupiter and nationwide.
Fiverr reviews / 95 on app work
What buyers said about working with Simon
“Syzmon is a very hard working and technically nimble developer. He works day and night to complete the work. This was a large project and required adjustments along the way and Syzmon was flexible and helped discover optimal solutions and adjusted as we learnt better solutions.”
A buyer in the United States, July 2022. App development on Fiverr “Great work! Szymon helped our mobile app concept come to life and we are very pleased with the outcome. He was great to communicate with throughout the process, making himself available when I needed him, and was quick to respond to feedback. We will definitely use him again. Thanks Szymon!”
Rebecca, United States, June 2022. App development on Fiverr “This seller was professional and seems to have understood what i did not understand about the project. he was VERY trustworthy as I gave him many opportunities to do very little for the gig i hired him for but he did not cut corners at all.”
A buyer in the United States, May 2022. Custom order on Fiverr
Read the whole story
- Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store (Mark, United States)
- A large custom app build, delivered on the back end and the front end (A buyer in the United States)