App Design & Development. From concept to launch

We design and build custom web and mobile apps that people actually want to use: iOS, Android, native, PWA and web software, wired to real backends and APIs and shipped to deliver the results your business needs.

We grow your business with

CROturn traffic into leads
SEOrank & get found
GEOwin generative search
AEOget cited by AI answers

What we do

Apps built to earn their place on the home screen

Most apps fail quietly. They ship late, feel clunky, and get deleted after a single frustrating session. eSEOspace builds the other kind. We start with the job your app is supposed to do for a real person, then design every screen, tap and transition around that job. The result is software that feels obvious to use, loads fast, and gives people a reason to come back. Whether you need a customer-facing mobile app, an internal tool, a member portal, or a full web platform, we treat usability as the feature that makes every other feature worth building. Nothing ships until it feels genuinely easy in your hands, not just in a spec document, because the fastest way to lose a user is to make them think.

We are a full-stack team, so design and engineering never work in silos. The same people who map your user flows also plan your database, your APIs and your deployment. That tight loop means fewer handoffs, fewer surprises, and an app that behaves the way it looked in the prototype. We build on modern, well-supported frameworks so your product stays maintainable long after launch, and so hiring your next developer never turns into a rescue mission. Good architecture is invisible when it works and painfully obvious when it does not, so we get it right early rather than patching it later.

We also think about growth from day one. An app is only valuable if the right people find it and stay. Because eSEOspace lives at the intersection of engineering and search, we bake in the technical foundations that help your web app rank, your landing pages convert, and your store listings get discovered. We plan analytics so you can see what users actually do, then use that evidence to prioritize what to build next. You get a product that works beautifully and a go-to-market foundation that helps it earn users, not just impress them in a demo. That combination of craft and traction is what separates an app that grows from one that quietly stalls after launch week.

Capabilities

Everything your app needs, under one roof

You should not have to stitch together a designer, an agency, a backend shop and a freelancer who never talk to each other. We cover the whole build under one roof so nothing falls through the cracks.

Mobile apps

Native iOS and Android, plus cross-platform builds that share one codebase without feeling second-rate.

UX and UI design

Research, wireframes, prototypes and polished interfaces designed around how real users actually behave.

Backend and databases

Secure, scalable server logic and data models built to handle growth and protect user information.

APIs and integrations

Custom APIs plus connections to payments, maps, messaging, CRMs and the tools you already run on.

PWAs and web apps

Installable progressive web apps and rich web platforms that work across every browser and device.

Launch and maintenance

App store submission, monitoring, updates and ongoing support so your product keeps working long after day one.

Technical scope

The stack behind the polish

Under every clean interface is real engineering. Here is the range of work we handle in-house so your app stays fast, secure and easy to extend as your needs change.

Native iOS development
Native Android development
Cross-platform mobile builds
Progressive web apps (PWA)
Custom web application platforms
UX research and user testing
UI design systems
Interactive prototyping
REST and GraphQL APIs
Third-party integrations
Payment and subscription flows
Authentication and user accounts
Cloud hosting and deployment
Push notifications
Offline and sync support
Analytics and event tracking
Performance optimization
Security and data protection
Automated testing and QA
Ongoing maintenance and support

Who it's for

The right fit for your build

We work best with founders and businesses who have a real problem to solve, not just a feature list. Startups use us to turn an idea into a fundable, usable product they can put in front of investors and early customers. Established companies bring us in to build customer apps, member portals, booking systems, dashboards and internal tools that replace spreadsheets and duct-taped software. Local and service businesses come to us for apps that make booking, ordering or communicating with customers effortless. If your success depends on people using your software, and using it more than once, you are exactly who we build for. We are just as happy building a focused tool for a small team as we are building a public product aimed at thousands of users.

We are also a strong fit if you have been burned before. Plenty of our clients arrive with a half-finished app from another team, an over-budget rebuild, or a codebase nobody can maintain. We are comfortable auditing what exists, telling you the honest truth, and either fixing it or replacing it with something durable. We would rather lose a project by being straight with you than win one by overpromising. You will always know what we are building, why, and what it costs before we write a line of code, so there are no surprises when the invoice arrives and no scope creep that quietly doubles your bill.

Selected work

Apps and platforms we have shipped

A look at custom products we have designed and built end to end, from the first rough sketch to live, working software people use every day.

TheraPro360 website
SaaS · Healthcare

TheraPro360

View live site →
LedgerMCP website
SaaS · Fintech

LedgerMCP

View live site →
Bay Area Kids Rentals website
Events · Rentals

Bay Area Kids Rentals

View live site →

Why eSEOspace

Engineering and growth on the same team

Most app studios stop at shipping. That is where the risk begins. An app with no users, no discoverability and no plan for updates is an expensive screenshot. Because eSEOspace is also a search and growth agency, we design your product with distribution in mind. Web apps get technical SEO, fast load times and clean, crawlable structures that search engines and AI answer engines can understand. Store presence gets thoughtful listings and assets. You end up with software engineered to be found, not just built to be admired, and with a team that already knows how to bring the right people to it and keep them coming back.

We are US-based and communicate like it matters, because it does. You get direct access to the people doing the work, plain-English updates, and a process that respects your time and budget. We size the build to your stage, so an early idea gets a lean, testable first version instead of a bloated platform you cannot afford to finish. You launch, you learn from real users, and you invest in what proves valuable. As you grow, the architecture grows with you rather than forcing an expensive rewrite.

Finally, we build to be handed over. Clean code, real documentation and sensible tooling mean you are never trapped with a single vendor. If you want us to maintain the app long term, we would love to, and many clients keep us on for exactly that. If you build an internal team later, they will thank you for how the project was structured instead of cursing the shortcuts a cheaper team left behind. We measure success by whether your app keeps working and keeps growing long after the launch confetti settles, because that is the only definition of success that actually matters to your business.

The process

How we do it

A clear, collaborative path from rough idea to a live app you are proud to put your name on, with no black boxes and no disappearing acts along the way.

1

Discovery and strategy

We dig into your goals, users and constraints, then map the core problem your app must solve and define what a successful first version really looks like.

2

UX and UI design

We wireframe the key flows, build interactive prototypes you can click through, and refine the interface until it feels obvious before any code is written.

3

Engineering and build

Our developers build the frontend, backend, APIs and integrations in tested increments, so you see working software early and often, not just at the end.

4

Testing and launch

We run quality assurance across devices, fix what breaks, prepare store submissions, and launch your app with monitoring in place from the first user.

5

Support and growth

After launch we track performance, ship updates, and improve the product based on real usage so your app keeps getting better over time.

What clients say

Businesses grow with eSEOspace

★★★★★

“Since beginning work with Irina and her staff at eSEOspace our internet activity has really begun to lift off. We had lots of issues with our site and the site was built several years ago. Irina found the problems, created a plan to fix them, and has since been implementing the plan to drive traffic to our site. Give them a call — they are a great company to work with!”

Brad Sneed
JayComp Development · Trustpilot
★★★★★

“After quickly exiting a previous marketing contract and needing to hit the ground running, the swift and capable onboarding with eSEOspace was exactly what we needed. Six months in, it's been a completely different experience. Irina and her team bring a level of attention to detail and consistency that you rarely find. As someone with over 15 years of marketing experience, I'm not easy to impress — what sets them apart is that they genuinely listen. It feels like a partnership, not a vendor relationship. eSEOspa…”

Ashley Murray
Marketing Leader · Trustpilot
★★★★★

“We have had an outstanding experience working with Ben Gunther, Project Manager at eSEOspace. From day one, the team has been incredibly patient, educational, and supportive. They created a gorgeous Shopify store for our company that is both professional and perfectly on trend. I genuinely do not have one negative thing to say. I would absolutely work with them again and highly recommend eSEOspace.”

Sarah
Shopify store owner · Trustpilot

5.0 ★ average from 102+ verified reviews on Trustpilot, Google, Clutch & DesignRush

FAQ

Common questions

Do you build native apps or cross-platform apps?
Both. We build fully native iOS and Android apps when performance and platform features demand it, and cross-platform apps when a shared codebase makes more sense for your budget and timeline. We recommend the right approach for your specific goals, not a one-size-fits-all answer.
How much does it cost to build an app?
It depends on scope, but we scope honestly before you commit. A lean first version costs far less than a full platform. We size the build to your stage and budget, break it into phases, and give you a clear estimate so you always know what you are paying for.
How long does an app take to build?
A focused first version often takes a few months from kickoff to launch, while larger platforms take longer. We work in increments so you see progress early, and we agree on realistic milestones up front rather than promising an unrealistic timeline just to win the project.
Can you finish or fix an app another team started?
Often, yes. We audit the existing code, tell you honestly whether it is worth continuing, and either extend it or plan a clean rebuild. Many clients come to us after a stalled or over-budget project, and we are comfortable stepping into that situation.
Will my app work offline and sync later?
For many apps, yes. We can build offline support so users keep working without a connection, then sync data automatically once they are back online. Whether it makes sense depends on your app, and we will advise you during the design phase.
Do you handle app store submission and updates?
Yes. We prepare your listings and assets, submit to the Apple App Store and Google Play, and handle the review process. After launch we ship updates, monitor for issues, and keep the app compatible as operating systems and devices change over time.
Can you help people actually find and use my app?
That is a core strength. As a search and growth agency, we build web apps for discoverability, optimize store listings, and lay the technical groundwork that helps the right users find you. We think about distribution during the build, not as an afterthought.

Project Managers who will work with you on your project!

David Geder
David Geder
Irina Shvaya
Irina Shvaya
Benjamin Gunther
Benjamin Gunther
Jeanette Mordvinov
Jeanette Mordvinov
Mark Shvaya
Mark Shvaya

Let's build the app your business deserves

Book a free strategy call and we will map your idea, flag the risks, and show you a clear, honest path from concept to a launched, working app, with no obligation and no jargon.

Book a Strategy Call →