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App Corp
Full-service software engineering
Engineering your experience…
App Corp
Full-service software engineering
Engineering your experience…
Subscription software engineered to scale to global markets
Multi-tenant architecture, billing and team management, feature flags, usage analytics, and compliance tooling — we handle the full SaaS engineering lifecycle so you focus on what differentiates your product.
60+
SaaS platforms shipped
100%
SOC 2 first-attempt pass rate
18K+
Largest tenant count managed
3 wks
Avg. billing go-live time
Building a SaaS product is not just building a web application with a subscription. It is a suite of interconnected engineering challenges: multi-tenancy model selection, data isolation compliance, billing orchestration, team and permission management, feature flag governance, usage metering, and SOC 2 compliance readiness.
We have built 60+ SaaS products across fintech, healthtech, proptech, HR tech, and developer tools. We know which architectural decisions lock you into expensive rewrites at 1,000 customers and which decisions compound returns at scale. Our goal is always to build the simplest SaaS infrastructure that is production-safe today and easily extended as you grow.
Database strategy selection (shared schema vs schema-per-tenant vs database-per-tenant) based on your compliance requirements, pricing model, and scale projections. Row-level security, tenant context middleware, and fan-out migration orchestration built in from day one.
Stripe or Paddle integration with subscription tiers, add-ons, metered usage billing, trial management, proration, coupon codes, invoice generation, failed payment recovery, and a customer self-serve billing portal.
Workspace invitations, role-based access control, SSO (SAML/OIDC), audit logs, and per-resource permission policies — the enterprise-readiness layer that unlocks mid-market and enterprise sales.
LaunchDarkly or homegrown feature flag system with per-tenant, per-plan, and per-user targeting — enabling safe gradual rollouts, A/B tests, and private beta access without code branches.
Product analytics instrumentation, customer health score models, churn prediction signals, and usage dashboards that give your customer success team early warning on at-risk accounts.
Audit log infrastructure, data encryption at rest and in transit, access control documentation, vulnerability scanning pipeline, and Vanta/Drata integration to accelerate your SOC 2 Type II certification.
We design your full SaaS architecture: tenancy model, billing plan structure, permission system, and compliance roadmap. Delivered as a comprehensive Architecture Decision Record that aligns your technical and commercial teams before build begins.
The SaaS platform skeleton: multi-tenant database, authentication, billing integration, team management, and feature flag system — all wired together and tested before product features begin.
Product-specific features built on top of the platform foundation. The platform layer is abstracted cleanly so every product feature inherits multi-tenancy, permissions, and billing without additional scaffolding.
Load testing, database performance tuning, zero-downtime deployment pipeline, Vanta/Drata compliance dashboard setup, and customer onboarding workflow configuration.
A 5,000-person financial services firm needed to replace their ageing SharePoint deployment with a modern, GDPR-compliant, SOC 2-certified document intelligence platform capable of AI-powered semantic search across 12TB of existing documents.
We designed a schema-per-tenant PostgreSQL architecture with Elasticsearch-powered semantic search, row-level encryption for compliance-sensitive documents, a full audit log pipeline, and automated SOC 2 control evidence collection via Vanta. Migrated 12TB of legacy content over 8 weeks with zero business disruption.
Many of our best projects combine two or more services from the list below.
Let's build something great
Book a free 45-minute scoping call. Walk away with a clear picture of what we would build, how long it would take, and how much it would cost — regardless of whether you move forward.
Average response time: 2 business hours. No commitment required.
"AppCorp delivered a production-ready AI platform in 11 weeks that our internal team estimated would take 9 months. The architecture is clean, the docs are thorough, and the product works exactly as specified."
Sarah Chen
CTO, PetScreening
50+
MVPs
94%
Retention
10wk
Avg. launch