Business Website Design and SaaS Development in New Jersey and New York City
Custom-coded business websites from $2,000, delivered in about a week with professional email and search setup included, plus full SaaS and web application development. US-based team in Teaneck, NJ and Queens, NY.
Updated · Reviewed by the AppDesign360 engineering team
AppDesign360 (Mango Consulting LLC) designs and builds custom-coded business websites and SaaS platforms in React and Next.js for companies in New Jersey, New York City, Connecticut, and nationwide. Business websites start at $2,000 for a starter site and $3,500 for a full business site, launching in 1–2 weeks with business email and SEO, AEO, and GEO setup included. SaaS and web applications are scoped from $25,000.
A business website has one job: turn a search into a call, a booking, or an order. We build sites that do that job fast. Every site is hand-coded in React and Next.js, so it loads quickly on a phone, passes Google's Core Web Vitals, and carries the structured data that Google, Bing, ChatGPT, and Perplexity read to understand what you do and where. Business email on your own domain, with SPF, DKIM, and DMARC configured so your replies land in the inbox, is part of every package.
The same team builds full software products. TourSyncer, ResumeFlight, and TraderCongress are multi-tenant SaaS platforms we designed and engineered end to end: authentication, PostgreSQL databases, Stripe billing, admin portals, and the marketing site in front of them. Mango Consulting LLC is the legal entity, an SBA-certified Service-Disabled Veteran-Owned Small Business founded in 2018, based in Teaneck, NJ with headquarters in Queens, NY. AppDesign360 is the brand we use for web and app work.
Why businesses in NJ and NYC hire us for websites
Live in about a week. A standard business website is scoped on a free 20-minute call and launches in 1–2 weeks, not 3 months.
Custom code, no templates. React and Next.js instead of WordPress themes and page builders, so the site is fast, secure, and has no plugin renewals.
Search and AI visibility built in. Schema markup, sitemap, llms.txt, Google Business Profile link-up, and answer-first page copy ship with the site.
Business email done right. Google Workspace or Microsoft 365 on your domain with SPF, DKIM, and DMARC, so you pass Google and Yahoo's sender requirements.
You own it all. Domain, hosting account, code repository, and email admin are in your name. Leave any time and take everything with you.
Grows into a product. Every site is built on the same stack as our SaaS products, so bookings, portals, and billing can be added later without a rebuild.
Recent work
TourSyncer
Multi-tenant SaaS platform
All-in-one tour operator platform with real-time bookings, dynamic-pricing itineraries, invoicing, staff scheduling, and a built-in CRM.
Clean multi-workspace SaaS architecture built from the ground up
Bring-your-own-key Stripe integration for zero-commission payments
Delivered on time; the client calls it one of the best custom SaaS teams they have worked with
Business email on Google Workspace or Microsoft 365 with SPF, DKIM, and DMARC
Contact form, click-to-call, and Google Business Profile link-up
Basic schema, sitemap, and llms.txt
14 days of post-launch fixes
Business website
$3,500 – $8,000
1–2 weeks
Up to 8 custom-coded pages in Next.js, mobile-first
Business email on Google Workspace or Microsoft 365 with SPF, DKIM, and DMARC
Schema markup, sitemap, llms.txt, and Google Business Profile link-up
Contact, quote, or booking form with spam protection
30 days of post-launch fixes
Growth website
$8,000 – $20,000
2–4 weeks
10–25 pages including service and location pages for local search
Online booking, ordering, or Stripe payments
CRM or HubSpot integration and GA4 conversion tracking
Bilingual pages with hreflang where your customers need them
Blog or CMS so your team can publish without a developer
SaaS or web application
$25,000 – $120,000+
8–16 weeks
Multi-tenant architecture with roles and permissions
Authentication, PostgreSQL database, and REST or GraphQL APIs
Stripe subscriptions, invoicing, and customer billing portal
Admin dashboard, staging environment, CI/CD, and monitoring
Marketing site and onboarding flow built alongside the product
These are the ranges most projects land in, not quotes. Every price is fixed after a free 20-minute scoping call and a written scope. Hosting is billed to your own Vercel or AWS account, typically $0–$50 per month for a marketing site; ongoing changes run on a retainer or at our custom software rate, from $25 per hour.
Industries we build for
Medical and dental practices
HIPAA-aware intake and appointment requests, provider bios, and insurance pages that answer the questions patients ask before booking.
Law firms
Practice-area pages with answer-first content, attorney profiles, and consultation booking, structured so search engines and AI assistants cite you.
Accounting and financial firms
Credential-forward sites with secure document upload links and seasonal service pages, like the ones we built for Everest Accounting & Tax and Fern Accounting.
Restaurants and retail
Menus, ordering, reservations, and Google Business Profile sync for storefronts in Bergen County and the five boroughs.
Contractors and home services
Service-area pages, before-and-after galleries, instant quote forms, and click-to-call above the fold.
SaaS founders
Marketing site, onboarding, and the product itself on one stack, from MVP through Stripe billing and admin tooling.
Custom-coded website vs. WordPress vs. Wix or Squarespace
Custom Next.js (what we build)
WordPress theme
Wix / Squarespace
Speed and Core Web Vitals
Passes by design; no plugin bloat
Depends on theme and plugins; often fails on mobile
Adequate for small sites; limited control
Ownership
Code, domain, and hosting in your name
You own the files; theme and plugin licenses renew
Rented; you cannot move the site
Search and AI visibility
Full control of schema, llms.txt, and page structure
Possible with plugins and care
Basic settings only
Security and maintenance
No plugins to patch; framework updates a few times a year
Weekly plugin and core updates or you get hacked
Handled by the platform
Cost over three years
One build fee plus low hosting
Build fee plus care plan, licenses, and rebuilds
Monthly subscription forever
Best for
Businesses that want speed, control, and room to grow
Content-heavy sites with an in-house editor
Hobby sites and very early tests
Based on the sites we take over and rebuild; your current platform may be fine if it is fast and you own it.
What's Included
Custom-coded business websites in React and Next.js, typically live in 1–2 weeks
Business email setup on Google Workspace or Microsoft 365 with SPF, DKIM, and DMARC
SEO, AEO, and GEO foundation: schema markup, sitemap, llms.txt, and answer-first copy
Core Web Vitals, accessibility, and security headers configured at launch
Booking, ordering, Stripe payments, CRM, and analytics integrations
A starter site with up to 5 custom-coded pages, business email, and a contact form runs $2,000–$3,500 and launches in about a week. A full business website with up to 8 pages and complete search setup runs $3,500–$8,000 and launches in 1–2 weeks. A growth site with booking, payments, CRM, and 10–25 pages runs $8,000–$20,000. You get a fixed price after a free 20-minute scoping call.
A starter website: up to 5 custom-coded pages, business email on your domain, a contact form with click-to-call, and the basic search setup, live in about a week. It is the same code and hosting as our larger sites, so you can add booking, more pages, or a blog later without a rebuild. Spend what is left on Google Business Profile reviews, which move local rankings faster than anything else at this budget.
We scope the site on the call, agree the page list and design direction on days 1–2, and build with a component library we have refined across dozens of sites. Custom code means no fighting a theme. The week includes copy, structured data, email setup, and launch checks.
No. We hand-code in React and Next.js. That is how the sites pass Core Web Vitals, avoid plugin security patches, and give us full control of schema markup and AI-search files. If you are on WordPress today, we migrate your content.
Yes. The domain, hosting account, code repository, and email admin are all in your name. There is no lock-in and no monthly platform fee to us.
Google Workspace or Microsoft 365 on your domain, mailbox and alias setup, and SPF, DKIM, and DMARC records so you meet Google and Yahoo's sender requirements and stay out of spam. We also migrate existing mail when needed.
Every site ships with Organization, Service, and FAQ schema, an XML sitemap, an llms.txt file for AI assistants, answer-first page copy, Google Business Profile and Search Console connection, and Core Web Vitals passing on mobile. Ongoing ranking work is a separate monthly service.
Most SaaS builds run $25,000–$120,000 over 8–16 weeks depending on tenancy, integrations, and billing complexity. The scope always includes authentication, a PostgreSQL database, Stripe billing, an admin portal, staging, and monitoring.
Hosting on Vercel or AWS in your own account, typically $0–$50 per month for a marketing site and usage-based for SaaS. Email is billed by Google or Microsoft per user. Changes run on an optional retainer or at our custom software rate, from $25 per hour.
Yes. We review the current site for speed, content, and search issues, keep what works, and rebuild the rest in Next.js. Existing URLs are redirected so you keep your rankings.
Yes. Mango Consulting LLC is the legal entity, an SBA-certified Service-Disabled Veteran-Owned Small Business. AppDesign360 is the brand we use for web, SaaS, and app work. Same engineers, same quote form at quote.appdesign360.com.
Yes. We meet in person by appointment across Bergen County, the five boroughs, and Fairfield County, CT, and work with clients across the United States over video calls. Several of the SaaS platforms in our portfolio serve customers nationwide.
Ready to get started?
Tell us what you want to build on a free 20-minute call and get a fixed price with a timeline. We respond within minutes during US business hours.
