Custom software built for your workflows, delivered in a week, yours to keep forever. No per-seat fees, no lock-in.
Client onboarding flow
CRMInvoice template
BillingAPI integration
DevDashboard widgets
UIAuth system
SecurityData migration
OpsTrusted by teams replacing their SaaS stack
One custom platform replaces a sprawl of SaaS subscriptions — purpose-built for your workflows, deployed in days, and fully yours forever.
Full source handed over on delivery. No vendor lock-in, no per-seat fees, no license renewals.
AI-accelerated builds deploy your first production release in 7 days, with iterative enhancements weekly.
Modern, battle-tested architecture designed to grow with your team, your data, and your workflows.
How It Works
AltStack replaces fragmented SaaS subscriptions with a single custom-built platform tailored to your workflows.
Enterprise SaaS spending has crossed $8,400 per employee annually, and prices are rising 5x faster than inflation. You're paying for features you don't use, locked into vendors you can't leave, and stitching together tools that don't talk to each other.
annual SaaS spend for a 50-person team
Every new hire means another $50-200/month across 10+ SaaS tools. A 50-person team spends $420,000/year on software subscriptions, and that number only goes up.
average number of SaaS apps per company
CRM data doesn't sync with project management. Support tickets are disconnected from billing. Your team wastes 4+ hours per week copy-pasting between tools that should be one system.
asset value after 3 years of subscriptions
After 3 years of SaaS subscriptions, you've spent $1.2M and own nothing. If you cancel, your workflows, data, and processes vanish. With custom software, you build an asset that appreciates.
annual SaaS price inflation (vs 2.3% CPI)
When your entire workflow depends on HubSpot or Salesforce, you can't negotiate. They know you can't leave. That's why SaaS inflation is 11.4% YoY while regular inflation is 2.3%.
Not generic SaaS with industry "templates." Purpose-built custom software for small businesses and growing firms — matching your exact workflows from client intake to case management, billing to compliance.
Stop paying $89/user/month for Clio features you never use. AltStack builds custom law firm management software you full…
Custom legal softwareKarbon, Canopy, and QuickBooks shouldn't cost your firm $150+/user/month combined. AltStack builds a unified accounting …
Custom accounting softwareReplace HawkSoft, Applied Epic, and AgencyZoom with an insurance CRM and agency management system your agency owns. AltS…
Custom insurance softwareReplace Follow Up Boss, kvCORE, and AppFolio with real estate CRM software and property management tools your brokerage …
Custom real estate softwareReplace Athenahealth, Kareo, and Dentrix with clinic management software your practice owns. AltStack builds custom heal…
Custom healthcare softwareReplace Bullhorn, JobAdder, and BambooHR with a talent management system and applicant tracking system your agency owns.…
Custom staffing softwareCapabilities
Replace 5-12 SaaS subscriptions with a single custom-built platform that does exactly what your team needs.
Full contact management with deal tracking
Kanban boards and task workflows
Calendar booking and availability
Ticket management and SLA tracking
We build any workflow your team needs - from niche industry tools to complex integrations.
Generate, sign, and archive contracts
Real-time metrics and reporting
We combine senior engineers with AI-powered development to compress what used to take months into days. No committees, no sprints, no scope creep.
Tell us which SaaS tools you want to replace and how your team actually works. We map your workflows, data flows, and integration points in a 30-minute discovery call.
Our team uses AI-powered development to build and deploy your custom software in 7 days. Not a prototype: production-ready software with your branding, your workflows, and your data model.
You get a live demo within 7 days. Test it, request changes, and launch when you're ready. Full source code is yours from day one, deploy anywhere, modify anything.
No per-seat fees. No vendor lock-in. No surprise price increases. You own the code, the data, and the infrastructure. Optional maintenance plans available if you want ongoing support.
AI-Powered Build Process
Our AI engine works alongside senior engineers to build your custom platform in real-time. Here's what a typical build session looks like.
The "build vs buy" equation has flipped. AI-powered development means custom software now costs less than 2-3 years of SaaS subscriptions, and you own it forever.
| Feature | SaaS Subscriptions | AltStack |
|---|---|---|
| Ownership | Renting: $0 asset value | You own 100% of the code |
| Pricing Model | Per-seat, escalating yearly | One-time build + optional maintenance |
| Cost After 3 Years | $288K–$960K (team of 50) | $30K–$100K one-time investment |
| Customization | Limited to vendor roadmap | Unlimited: it's your code |
| Data Portability | Locked in vendor format | Your database, your structure |
| Integration | Limited API, extra costs | Built-in, native integrations |
| Vendor Lock-In | High: switching costs are massive | Zero: deploy anywhere |
| Price Increases | 11.4% average annual inflation | None: you own it |
| Feature Bloat | Pay for features you never use | Only features you need |
| Security Control | Shared infrastructure | Your infrastructure, your rules |
Companies across legal, healthcare, insurance, accounting, real estate, and staffing are saving hundreds of thousands by switching from SaaS subscriptions to custom software.
Your data migrates seamlessly. Your software runs on your infrastructure. Enterprise security, zero vendor lock-in, from day one.
Every build ships with hardened auth, encrypted data at rest and in transit, role-based access, and full audit logging. SOC 2-aligned architecture standard on every project.
We migrate your existing data from any SaaS tool — Salesforce, HubSpot, Jira, Zendesk, you name it. API-based or CSV, verified for integrity, with your original data kept as a backup.
Full source code ownership. Deploy on your servers or ours. No proprietary runtimes, no licensing fees. Any developer can maintain it. Leave anytime — your code and data go with you.
“We were spending $23,000/month on Salesforce, HubSpot, Calendly, and Intercom. AltStack replaced all four with one custom platform in 3 days. Our annual savings: $196,000.”
Sarah Chen
COO, Meridian Legal Group
“The idea of custom software used to mean 6 months and $500K. AltStack built and deployed our entire client management system in 7 days, with better features than the 4 SaaS tools it replaced.”
James Rodriguez
Managing Partner
“We replaced Zendesk, Airtable, and a custom spreadsheet nightmare with one unified platform. Our support team's resolution time dropped 40% because everything is in one place now.”
Dr. Priya Sharma
Practice Director
“I was skeptical about the 7-day claim. They actually delivered a working CRM with automated policy renewals in 5 days. We cancelled 6 SaaS subscriptions the same week.”
Michael Torres
Agency Owner
“Our staffing coordinators were toggling between 8 different tools. Now they have one dashboard with everything, candidate tracking, client CRM, timesheet management, invoicing. Productivity is up 35%.”
Rebecca Williams
VP of Operations
“The idea of custom software used to mean 6 months and $500K. AltStack built and deployed our entire client management system in 7 days, with better features than the 4 SaaS tools it replaced.”
James Rodriguez
Managing Partner
“We replaced Zendesk, Airtable, and a custom spreadsheet nightmare with one unified platform. Our support team's resolution time dropped 40% because everything is in one place now.”
Dr. Priya Sharma
Practice Director
“I was skeptical about the 7-day claim. They actually delivered a working CRM with automated policy renewals in 5 days. We cancelled 6 SaaS subscriptions the same week.”
Michael Torres
Agency Owner
“Our staffing coordinators were toggling between 8 different tools. Now they have one dashboard with everything, candidate tracking, client CRM, timesheet management, invoicing. Productivity is up 35%.”
Rebecca Williams
VP of Operations
We combine senior full-stack engineers with AI-powered development tools that accelerate coding by 3-5x. Our team has pre-built component libraries for common business workflows (CRM, scheduling, billing, support tickets, document management). Instead of building from scratch, we assemble and customize production-ready modules to match your exact workflow. The result: enterprise-grade custom software built and deployed in 7 days, not 6 months.
You receive the complete source code from day one. The code runs on your infrastructure (or we can host it for you). You can modify it, hire your own developers to extend it, or switch hosting providers at any time. There's no vendor lock-in, no proprietary runtime, and no "platform" you're stuck on. If you ever want to part ways, you keep everything, code, data, and infrastructure configurations.
Most AltStack builds cost between $5,000 and $50,000 as a one-time investment. Compare that to SaaS subscriptions that cost $8,400 per employee per year (and rising 11.4% annually). For a 20-person team using 10 SaaS tools, you're spending $168,000/year. A custom AltStack build typically pays for itself in 2-4 months and saves 70% over 3 years. We offer transparent pricing tiers: Starter ($5K), Growth ($15K), and Enterprise ($30K+).
AltStack has built custom replacements for CRM systems (HubSpot, Salesforce), project management tools (Jira, Asana, Monday), scheduling platforms (Calendly, Acuity), support desks (Zendesk, Intercom), document management (DocuSign, PandaDoc), databases (Airtable, Notion), invoicing tools, and industry-specific software. Most clients replace 5-12 SaaS tools with a single custom platform.
Yes. Every AltStack build follows security best practices: encrypted data at rest and in transit, role-based access controls, SOC 2-aligned architecture, automated backups, and 99.9% uptime SLAs. Unlike SaaS platforms where your data sits on shared infrastructure, your custom software runs on dedicated infrastructure, giving you complete control over security, compliance, and data residency.
AltStack specializes in six industries where SaaS replacement delivers the highest ROI: Legal (practice management, case management, billing), Accounting (client portals, workflow automation, audit management), Healthcare (patient management, EHR integrations, clinic operations), Insurance (agency management, policy tracking, claims automation), Real Estate (CRM, transaction management, property tools), and Staffing (ATS, client CRM, timesheet management, invoicing).
After delivery, you review the software in a live demo. We offer unlimited revisions during a 2-week refinement period. Once you're satisfied, you launch. Optional ongoing maintenance plans ($500-2,000/month) cover hosting, monitoring, security patches, and feature updates. Or you can manage everything yourself. It's your code. Most clients choose a maintenance plan for the first year, then transition to self-management.
No-code tools give you a drag-and-drop interface but lock you into their platform with per-seat pricing and limited customization. AltStack gives you real, production-grade source code that you own completely. There's no platform dependency, no per-seat fees, and no limitations on what you can build. Think of it as the output of a custom development agency, delivered at the speed of a no-code tool.
Yes. Visit our Templates gallery to see pre-built solutions for common workflows, or read our Case Studies for detailed breakdowns of custom builds across legal, accounting, healthcare, insurance, real estate, and staffing. Each case study includes the tools replaced, development timeline, cost comparison, and ROI metrics.
Vibe coding is the practice of using AI tools to generate production software through natural language descriptions rather than traditional line-by-line coding. AltStack applies vibe coding methodology with expert engineering oversight. Our senior developers guide AI tools to build your software, then review and optimize every component for security, performance, and reliability. You get the speed benefits of AI development with the quality assurance of experienced engineers.
Built with enterprise guardrails
SOC 2
Aligned
NDA
Protected
Full Code
Ownership
HIPAA
Compatible
GDPR
Ready
7-day
Delivery SLA
Join the 35% of companies that have already replaced SaaS tools with custom software. Tell us what you need. We'll have it built and deployed in 7 days.