SaaS Development Agency — Build & Launch SaaS

A focused SaaS MVP typically costs $30,000–$60,000 with Kultrix. A full launch with billing, admin tools, and analytics runs $60,000–$150,000 depending on complexity. We scope each project transparently after a free discovery session.

We implement row-level multi-tenancy by default — all database tables include an organization_id column, and every query is scoped to the authenticated tenant. For strict isolation requirements, we also support schema-per-tenant or database-per-tenant architectures.

We implement Stripe Checkout and Customer Portal for subscriptions, handle billing webhooks for subscription lifecycle events (created, updated, cancelled, payment failed), sync subscription state to your database, and gate features based on plan limits.

We build invite-by-email flows, role-based access (owner, admin, member), seat counting for per-seat pricing, and organization-level settings. These patterns are common across SaaS products and we have battle-tested implementations ready to adapt.

A core SaaS MVP — auth, billing, the primary feature set, and a basic admin — takes 10–16 weeks. A polished v1 with marketing site, onboarding flow, and analytics takes 4–6 months. Kultrix uses iterative sprints so you see working software every two weeks.

Yes. Kultrix builds the marketing site alongside the product — pricing page, feature highlights, testimonials, and SEO-optimized blog — so your SaaS launches with a full acquisition funnel, not just a product.

We enforce tenant isolation at the query level, implement rate limiting per user and organization, use short-lived JWTs with refresh token rotation, store secrets in environment variables (never in code), and run OWASP-based security reviews before launch.

We instrument key events (signup, activation, feature usage, upgrade, churn) with Mixpanel or PostHog, build internal MRR and churn dashboards, and set up funnel analysis so you can see where users drop off and prioritize fixes.

Yes. Kultrix performs SaaS architecture audits and implements scaling solutions — read replicas, Redis caching, background job queues, and CDN offloading — before performance becomes a customer problem.

Yes. Many SaaS products need a developer-facing API. We design RESTful APIs with API key management, rate limiting per key, usage tracking for billing, and auto-generated documentation with OpenAPI/Swagger.

We implement a centralized feature-flag system that checks the authenticated user's subscription plan before allowing access to premium features. This makes adding new plan tiers or moving features between plans a configuration change rather than a code change.

We share frameworks and data from similar SaaS products we have built — per-seat vs usage-based vs flat-rate trade-offs, free trial vs freemium conversion rates, and plan tier structuring. While pricing strategy is ultimately your decision, we bring context from real SaaS outcomes.