# 0ARCH: Custom Web Apps & CRM Development > Software studio building custom web applications, CRM systems, internal tools, and client portals for growing businesses. Fixed scope, fixed price, clients own the code. Based in Miami, FL, building for clients everywhere. Bilingual (English/Spanish). ## About 0ARCH is a software studio that builds custom software for businesses that have outgrown spreadsheets and off-the-shelf SaaS. Every project is fixed scope and fixed price, and the client owns the code at handoff: no per-seat licenses, no vendor lock-in. Most projects ship in 4 to 14 weeks. ## Services and Pricing - **Websites**: Marketing sites with lead capture and SEO. Focused local business sites start at $2,000; most custom marketing sites run $8,000 to $25,000. 1 to 6 weeks. - **Custom CRM Systems**: Lead tracking, pipeline, quoting, reporting, designed around the client's actual sales process. $15,000 to $150,000 depending on tier (focused / operational / platform), 4 to 20 weeks. - **Internal Tools**: Admin panels, dashboards, billing, inventory, workflow automation. From $5,000; most run $20,000 to $80,000. 1 to 12 weeks. - **Client Portals**: Project status, billing, documents. From $5,000; basic portals run $20,000 to $45,000, operational portals $45,000 to $80,000, and platform portals with billing, automation, and integrations $80,000 to $120,000+. 1 to 16+ weeks. - **Web Applications / SaaS**: From $8,000; most run $30,000 to $150,000. 2 to 20 weeks. - **ERP / multi-module operations platforms**: From $20,000; most run $80,000 to $200,000+. 4 to 24 weeks. ## Tech Stack Frontend: React, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Cloudflare Workers, D1, PostgreSQL, Prisma Mobile: SwiftUI Infrastructure: Cloudflare, GCP ## Case Studies - CTI ERP: full operations platform (orders, inventory, invoicing, FedEx shipping) for a Miami logistics company. https://0arch.io/work/cti-erp - The Wastemasters: bilingual marketing and booking site for a junk removal company. https://0arch.io/work/wastemasters - HomeSellers: real estate brokerage site. https://0arch.io/work/homesellers - JunkZip: hauler directory platform (studio product). https://0arch.io/work/junkzip ## Guides - What custom software costs in 2026: https://0arch.io/blog/what-custom-software-costs - How much a custom CRM costs in 2026: https://0arch.io/blog/cost-to-build-custom-crm - How long a custom CRM takes to build: https://0arch.io/blog/how-long-to-build-custom-crm - Build vs. buy software: https://0arch.io/blog/build-vs-buy-software - Custom CRM vs. HubSpot: https://0arch.io/blog/custom-crm-vs-hubspot ## Contact - Website: https://0arch.io - Email: contact@0arch.io - Phone: (786) 531-6722 - Location: Miami, FL (serving clients worldwide, English and Spanish) ## Links - Homepage: https://0arch.io - Services: https://0arch.io/services/web-apps, https://0arch.io/services/crm, https://0arch.io/services/tools - Work: https://0arch.io/work - About: https://0arch.io/about - Contact: https://0arch.io/contact - Blog: https://0arch.io/blog - Spanish site: https://0arch.io/es