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Custom apps

Software built around how your business runs.

A brochure site tells people what you do. These apps do part of the work: they take the booking, answer the price question, let a client see their file, and put the numbers on one screen. Each guide below is concrete about what the app does, how we build it, and what it starts at.

What we build

Six app types, each with a clear starting point.

Starting figures are honest planning anchors, not quotes. Every app is scoped to your workflow, and the fixed quote reflects the roles, integrations, and automation it needs.

Client portal

from $8,000

Client portal development

A client portal is a secure, logged-in area of your website where customers see their own information: documents, status, messages, invoices, and next steps. It replaces long email threads and repeated phone calls with one place both sides can trust. You decide what each client can see and do.

Typically includes

  • Secure login with password reset, optional two-factor authentication, and per-client permissions
  • Document exchange with upload, download, version history, and an activity log
  • Status tracking so clients can see where their project, case, or order stands without calling
Explore client portal builds

Online booking

from $8,000

Online booking system development

An online booking system lets customers pick a service, see real availability, and reserve a time or a table from your website without a phone call. It confirms by email or text, sends reminders, and updates the calendar your team already lives in. We build it custom when off-the-shelf schedulers cannot handle your rules.

Typically includes

  • Real-time availability by staff member, room, table, or resource, with buffer times and blackout dates
  • Service menus with durations, pricing, add-ons, and intake questions
  • Deposits, prepayment, or card on file through Stripe, with your cancellation policy enforced
Explore online booking builds

Quote calculator

from $8,000

Quote calculator development

A quote calculator asks a visitor a few questions about what they need and returns a price range on the spot, then hands the details to your team as a qualified inquiry. It answers the question people came to your site to ask and filters out projects that were never a fit. The pricing logic is yours, kept private on the server when it needs to be.

Typically includes

  • Step-by-step questions with conditional logic, so people only see what applies to them
  • Pricing rules you control: base rates, multipliers, minimums, add-ons, and regional adjustments
  • Instant range or itemized estimate, with an optional emailed PDF quote
Explore quote calculator builds

Membership site

from $10,000

Membership site development

A membership site puts content, tools, or community behind a login that people pay for or qualify for. It handles signup, recurring billing, access levels, and renewals, and gives members a home that is yours rather than a page on someone else's platform. You keep the member list, the revenue, and the relationship.

Typically includes

  • Membership tiers with recurring billing, trials, coupons, and upgrades through Stripe
  • Gated content: articles, videos, downloads, courses, or tools unlocked by tier
  • Member profiles and an optional searchable member directory
Explore membership site builds

Dashboard and reporting

from $9,000

Dashboard and reporting development

A reporting dashboard pulls the numbers your business already produces, from sales, bookings, forms, ad accounts, or spreadsheets, into one live view your team can read at a glance. It replaces the monthly export-and-reformat ritual with charts and tables that update themselves. Alerts tell you when a number moves before you go looking.

Typically includes

  • Live data connections to your POS, CRM, booking system, ad platforms, accounting software, or spreadsheets
  • Role-based views so owners, managers, and staff each see what matters to them
  • Charts, tables, and KPI tiles designed to be read on a phone as well as a wall screen
Explore dashboard and reporting builds

Integrations and API

from $8,000

Integrations and API development

Integration work connects your website to the software your business already runs on, so a form submission, booking, or order flows into your CRM, scheduler, accounting system, or inventory without anyone re-typing it. Where a system has no connector, we build one against its API. Where your own data needs to be reachable by partners or apps, we build and document the API.

Typically includes

  • Two-way sync with CRMs, schedulers, accounting, inventory, and marketing tools through their official APIs
  • Webhook handlers that react to events in real time, with retries and a dead-letter log
  • A private or partner-facing REST API with authentication, rate limits, and documentation
Explore integrations and API builds

How we build

Custom functionality without the custom-software drama.

Scope before code

We map the users, the workflow, and the data the app has to handle before anything is designed. The quote is fixed to that scope, so the number you plan around is the number you pay.

A boring, proven stack

Custom does not mean exotic. We build on well-supported tools with plain data models and clear integrations, so the app is fast to run, straightforward to host, and easy for another developer to pick up later.

You own everything

The code, the hosting accounts, the database, and every integration are set up in your name and handed over at launch. Extend it with us, with someone else, or in house.

Want the broader picture first? Seeweb apps and custom developmentor try thecost estimator.

FAQ

Custom apps: common questions.

How much does a custom web app cost?

The app types on this page start from $8,000 for a focused build, and each guide shows its own starting figure. The biggest cost drivers are the number of user roles, the integrations involved, and how much of the workflow has to be automated rather than handled by a person. Every project is quoted to its scope, with no hourly surprises.

How long does a custom app take to build?

A focused tool such as a quote calculator or a booking flow is usually measured in weeks. A portal or reporting system with several integrations takes longer because there is more to design, connect, and test. The quote always comes with a realistic timeline, and you see working software well before launch.

Can you add an app to the website I already have?

Often, yes. Many apps live at their own address, such as portal.yourdomain.com, and link from your current site. If the existing site is the bottleneck, we say so and price the two pieces separately so you can decide.

Tell us what the app needs to do.

Describe the workflow in plain language: who uses it, what they need to see, and what should happen automatically. We come back with a scope, a realistic timeline, and a fixed quote.