Custom Web & Mobile Apps
(Custom Applications, Built Around Your Business)
When a website isn't enough, we build the software itself.
Some businesses need more than a website — a browser-based web app, or a mobile app for phones and tablets, built around a specific process, workflow, or tool your business actually needs. We design and develop both as custom, individually-scoped projects.

One starting price, scoped to your project.
Every web or mobile app is different, so we start from one clear price and quote the rest after understanding what you need.
Custom Web & Mobile App Development
- Custom web app design & development
- Custom mobile app design & development
Platform
Whether you need a web app, a mobile app, or both.
Features & Integrations
How many features, user roles, and third-party integrations are involved.
Design Complexity
How custom the interface and user experience need to be.
Timeline
How quickly you need the project delivered.
Pricing above reflects Sites by Sara's starting rate for custom web and mobile app development. Because every project's scope is different, an exact quote is provided after a free consultation.
Not sure you need a full app? See our Static HTML Sites or Custom WordPress Development pages.
What's involved in building your app.
From your first goal to a live, working product — here's how we get there.
Discovery Call
We talk through your goals, your users, and what the app needs to do.
Requirements & Scope
Defining features, platforms, and integrations so we can quote accurately.
UX & UI Design
Designing the screens and flows your users will actually interact with.
Development
Building the web app or mobile app to match the approved design and scope.
Integrations
Connecting any third-party tools or services your app depends on.
Testing & QA
Testing functionality across devices before anything goes live.
Launch
Deploying your web app, or publishing your mobile app, with your review.
Handoff & Support
A walkthrough of what was built, plus availability for ongoing support.
A web app your team can use from any browser.
No install required — a web app runs directly in the browser, on desktop or mobile, built around the specific process or tool your business needs, rather than a general-purpose website template.
See web app pricing
A mobile app that lives on your customers' phones.
A mobile app is installed directly on a phone or tablet, built to your specification for the way your customers or team actually work — not a template.
See mobile app pricing
Not sure if you need an app, or just a website?
If you mainly need to share information, showcase your business, or capture leads, a website is usually simpler and more affordable. A custom app makes sense when you need interactive tools, user accounts, or functionality a standard website can't provide.
See Custom WordPress Development
Frequently Asked Questions
Everything you need to know about our custom web and mobile app development.
How much does a custom web or mobile app cost? +
What's the difference between a web app and a mobile app? +
What factors affect the final price of my app? +
What's included in the starting price? +
Do I need a custom app, or would a website be enough? +
How long does a custom app take to build? +
Ready to scope your custom app?
Book a free consultation and tell us what you're trying to build — we'll help you figure out the right platform and get you an accurate quote.
Book a Free ConsultationHelpful to have ready:
- 1 What problem your app needs to solve
- 2 Whether you need a web app, mobile app, or both
- 3 Any tools or services it needs to connect to
- 4 Who will be using it, and how
- 5 Your target timeline, if you have one