Product Development

Product Design & Development

Product design and development from one team, so what gets designed is what gets built. We pair UX and UI craft with full-stack engineering — no handoff gap between a design agency and a dev shop. For startups and SMBs who want a product that looks right and works right.

What You Get

A Product You Can Ship

01

Designed and built as one

The same team designs and engineers your product, so the shipped result matches the design instead of being watered down in handoff.

02

No handoff gap

Designers and developers work side by side, so feasibility is settled while designing. No late surprises, no 'engineering can't build that' after sign-off.

03

Feasible by design

Every design decision is checked against the build in real time. You don't pay for beautiful screens that turn out to be impractical to ship.

§ 03MEASURED OUTCOMES

Results that
speak for themselves.

Seven years of shipping. Every number below comes from real products in-market — no vanity metrics.

#012M+
Downloads of apps we shipped

Combined iOS + Android installs across our products.

#0280%
Long-term or returning clients

Clients work with us 4+ years or come back for more.

#0360%
Team with 5+ year tenure

A senior team built on retention, not churn.

#04$50M+
In investment attracted

Capital raised by startups using products we built.

FIG. 03 — RESULTS SUMMARY, 2019–2026SOURCE: INTERNAL · AGGREGATED ACROSS 40+ ENGAGEMENTS

Our Approach

How We Combine Design and Development

The biggest waste in product work is the gap between design and code. We close it by running both as one process with one accountable team.

One team, shared backlog

Designers and engineers work from the same backlog and ceremonies. Design isn't thrown over a wall — it's built collaboratively, with feasibility checked as it's drawn.

Design system, not one-off screens

We build a reusable component system that maps directly to code. New screens stay consistent and ship faster because the building blocks already exist on both sides.

Prototype then production, same intent

What we test in the prototype is what we build. The engineered product carries the same interactions and polish the design promised — nothing lost in translation.

Iterate with design and code in lockstep

Post-launch, design and engineering improve the product together. No waiting for a separate agency to redesign before developers can act.

Selected Work

Projects We've Shipped

§ REVIEWSCLIENT FEEDBACK

What our Clients Say

Every review is real and verifiable — straight from Clutch, Upwork, and LinkedIn. Nothing cherry-picked.

★★★★★
The quality for price is really high.

Prosperity is always happy to share their knowledge.

RG
Remy Gasterich
OWNER · SUISSECO GMBH
VIEW →
★★★★★
It feels like they're part of the team, and they make good decisions without needing a lot of support.

I presented Illia with a problem, he helped me think through of a way to solve the problem and best of all: him and his team were able to actually implement it! He's got great entrepreneurial instincts.

AL
Andre Laboy
OWNER · SCRIPTED LABS LLC
VIEW →
★★★★★
I think what sets them apart is the range of skills they bring to a project, as well as their level of knowledge.
DL
Derry Lozano-Hoyland
PRODUCT OWNER · CUBITTS
VIEW →
★★★★★
From start to finish, the entire experience was nothing short of exceptional.

The team at Prosperity was super fast to respond to all our queries and requests. Their commitment to quality was evident in their extensive testing, ensuring a smooth and seamless integration of SSO into our apps.

JM
John McCann
HEAD OF PRODUCT · COMPLYFLOW
VIEW →
★★★★★
The project was an enjoyable and positive experience.

I like the personal touch they have. They offer good bang for the buck.

FW
Filip Witek
INSIGHT MANAGER · CUBITTS
VIEW →
★★★★★
When I ask Prosperity to do something that doesn't make sense, they suggest alternatives that work better.
KP
Ketan Patel
OWNER · MINT INSPECT
VIEW →
★★★★★
They were honest, direct easy to communicate, had great quality and excellent value.

The build quality was very good overall and bugs were fixed quickly.

GJ
Greg Jarrett
FOUNDER · LOOPS REWARDS
VIEW →
★★★★★
I'm really happy I chose to work with Illia to develop a face measurement taking iOS application.

He has been very communicative, got the work done on time, delivered a quality application, and was able to solve some technical challenges related to determining landmark points on ARKit-derived 3D model.

FM
Verified Upwork Client
CLIENT · ARKIT FACIAL MEASUREMENT APP
★★★★★
It was such a pleasure to work with Illia for the development of our App.

He is super experienced and has excellent work ethics. Illia delivered our project on time and never missed any milestones along the way. He is our number 1 developer to go to for any technical knowhow.

CA
Verified Upwork Client
CLIENT · CAMERA APP
★★★★★
Prosperity is an amazing team and provide excellent work.

I am looking forward to working with them again in the future. Total class act and very professional, plus excellent code.

CP
Verified Upwork Client
FOUNDER · CRUISE PLATFORM
★★★★★
Illia was fantastic to work with.

Understood requirements well, worked with me to brainstorm ways to achieve the functionality needed, tested and debugged, and delivered a crash-proof, pixel-perfect iPad application.

iP
Verified Upwork Client
CLIENT · IPAD ART INSTALLATION
★★★★★
Illia has done a really great job.

He's a strong communicator through and delivers high quality work. I can highly recommend him for future work. I will be hiring him again in future!

NA
Verified Upwork Client
CLIENT · NATIVE IOS APP
★★★★★
The team was a great help to us in this project!

The delivery and the workflow were very professional. The team went beyond the scope, they took more responsibility and provided us with the required expertise, although the project was complicated. We are happy to recommend this team!

AR
Verified Upwork Client
CLIENT · NFT APP WITH AR
★★★★★
Fast delivery, high code quality, and ability to communicate with the rest of the team.
PB
Verified Upwork Client
CLIENT · PYTHON BACKEND & REACT NATIVE APP
★★★★★
Illia and his team, delivered and completed the project on time.

They are highly professional, excellent communication skills and the entire project was completed smoothly without any issue along the way. We highly recommend them to anyone and have continued working with them on our ongoing projects and future work.

RF
Verified Upwork Client
CLIENT · REACT FRONTEND
★★★★★
The developer communicated well and delivered high-quality code, we already rehired him again.
RN
Verified Upwork Client
CLIENT · REACT NATIVE APP
★★★★★
Working with Prosperity has been a pleasure.

They will do everything possible make your project perfect.

iA
Verified Upwork Client
CLIENT · IOS APP
★★★★★
Illia helped us with frontend development in Swift.

His excellent technical skills are paired with very good communication skills, made it very easy for us to onboard him onto a running project and complete the work as planned.

SM
Verified Upwork Client
CLIENT · SWIFT MOBILE APP
★★★★★
We're impressed with their transparency and ability to solve very challenging technical problems.
EL
Emil Larsen
CTO · UTILIGIZE
VIEW →
★★★★★
The quality for price is really high.

Prosperity is always happy to share their knowledge.

RG
Remy Gasterich
OWNER · SUISSECO GMBH
VIEW →
★★★★★
It feels like they're part of the team, and they make good decisions without needing a lot of support.

I presented Illia with a problem, he helped me think through of a way to solve the problem and best of all: him and his team were able to actually implement it! He's got great entrepreneurial instincts.

AL
Andre Laboy
OWNER · SCRIPTED LABS LLC
VIEW →
★★★★★
I think what sets them apart is the range of skills they bring to a project, as well as their level of knowledge.
DL
Derry Lozano-Hoyland
PRODUCT OWNER · CUBITTS
VIEW →
★★★★★
From start to finish, the entire experience was nothing short of exceptional.

The team at Prosperity was super fast to respond to all our queries and requests. Their commitment to quality was evident in their extensive testing, ensuring a smooth and seamless integration of SSO into our apps.

JM
John McCann
HEAD OF PRODUCT · COMPLYFLOW
VIEW →
★★★★★
The project was an enjoyable and positive experience.

I like the personal touch they have. They offer good bang for the buck.

FW
Filip Witek
INSIGHT MANAGER · CUBITTS
VIEW →
★★★★★
When I ask Prosperity to do something that doesn't make sense, they suggest alternatives that work better.
KP
Ketan Patel
OWNER · MINT INSPECT
VIEW →
★★★★★
They were honest, direct easy to communicate, had great quality and excellent value.

The build quality was very good overall and bugs were fixed quickly.

GJ
Greg Jarrett
FOUNDER · LOOPS REWARDS
VIEW →
★★★★★
I'm really happy I chose to work with Illia to develop a face measurement taking iOS application.

He has been very communicative, got the work done on time, delivered a quality application, and was able to solve some technical challenges related to determining landmark points on ARKit-derived 3D model.

FM
Verified Upwork Client
CLIENT · ARKIT FACIAL MEASUREMENT APP
★★★★★
It was such a pleasure to work with Illia for the development of our App.

He is super experienced and has excellent work ethics. Illia delivered our project on time and never missed any milestones along the way. He is our number 1 developer to go to for any technical knowhow.

CA
Verified Upwork Client
CLIENT · CAMERA APP
★★★★★
Prosperity is an amazing team and provide excellent work.

I am looking forward to working with them again in the future. Total class act and very professional, plus excellent code.

CP
Verified Upwork Client
FOUNDER · CRUISE PLATFORM
★★★★★
Illia was fantastic to work with.

Understood requirements well, worked with me to brainstorm ways to achieve the functionality needed, tested and debugged, and delivered a crash-proof, pixel-perfect iPad application.

iP
Verified Upwork Client
CLIENT · IPAD ART INSTALLATION
★★★★★
Illia has done a really great job.

He's a strong communicator through and delivers high quality work. I can highly recommend him for future work. I will be hiring him again in future!

NA
Verified Upwork Client
CLIENT · NATIVE IOS APP
★★★★★
The team was a great help to us in this project!

The delivery and the workflow were very professional. The team went beyond the scope, they took more responsibility and provided us with the required expertise, although the project was complicated. We are happy to recommend this team!

AR
Verified Upwork Client
CLIENT · NFT APP WITH AR
★★★★★
Fast delivery, high code quality, and ability to communicate with the rest of the team.
PB
Verified Upwork Client
CLIENT · PYTHON BACKEND & REACT NATIVE APP
★★★★★
Illia and his team, delivered and completed the project on time.

They are highly professional, excellent communication skills and the entire project was completed smoothly without any issue along the way. We highly recommend them to anyone and have continued working with them on our ongoing projects and future work.

RF
Verified Upwork Client
CLIENT · REACT FRONTEND
★★★★★
The developer communicated well and delivered high-quality code, we already rehired him again.
RN
Verified Upwork Client
CLIENT · REACT NATIVE APP
★★★★★
Working with Prosperity has been a pleasure.

They will do everything possible make your project perfect.

iA
Verified Upwork Client
CLIENT · IOS APP
★★★★★
Illia helped us with frontend development in Swift.

His excellent technical skills are paired with very good communication skills, made it very easy for us to onboard him onto a running project and complete the work as planned.

SM
Verified Upwork Client
CLIENT · SWIFT MOBILE APP
★★★★★
We're impressed with their transparency and ability to solve very challenging technical problems.
EL
Emil Larsen
CTO · UTILIGIZE
VIEW →

Mobile Apps Across Every Vertical

Deep domain knowledge across core verticals — so you get a team that understands your market, not just your code.

How It Works

From Concept to Built Product

01

Discovery & UX

We research users and map the experience. You get the core flows and information architecture, with engineers already weighing in on feasibility.

02

UI & Design System

High-fidelity design and a component system tied to code. You see and test the real interface before it's built.

03

Build in Parallel

Engineering implements designs as they're finalised, in two-week sprints. You get working software that matches the design closely at every stage.

04

Launch & Refine

We ship, then design and engineering refine together on real usage. You get a coherent product and one team improving it, not two to coordinate.

Why Prosperity

Why Choose a Combined Team

Splitting design and development across vendors is where products lose their quality and their timeline. We run both, and it shows in the result.

We build what we design

Our designers sit with our engineers daily. The product that ships looks and behaves like the design, because the same people are responsible for both.

One contract, one timeline

No managing a design agency and a dev shop with mismatched schedules and finger-pointing. One team owns the outcome from first sketch to live product.

Honest when you only need one half

If you already have strong design or a capable dev team, we'll scope to just the missing piece rather than selling you the full package you don't need.

A system, not just screens

You get a design system wired to a real codebase, so future work is cheaper and stays consistent — not a pile of one-off mockups to reinterpret each time.

FAQ

Frequently Asked Questions

Because the handoff between a separate design agency and dev shop is where quality and time leak away. Designs get reinterpreted, feasibility issues surface too late, and each side blames the other. One team that designs and builds keeps intent intact, settles feasibility while designing, and ships a product that matches the vision.

§ 13 — Contact

Book a call.
Leave with a plan.

A direct line to the engineers who'll actually do the work. We'll map your problem to a scope and timeline in one short conversation.

Trusted & verified

Clutch★★★★★5.0 · 12 reviews
AgencyReviewVerified · Software Agencies