SaaS application development costs range from $30,000 to $500,000+ depending on product complexity, number of integrations, compliance requirements, and whether the build starts from scratch or modifies an existing codebase. A focused MVP, core product workflow, subscription billing, and user authentication, sits in the $30,000 to $80,000 range. A full-featured B2B SaaS product with multi-tenant architecture, enterprise SSO, SOC 2-aligned security, embedded analytics, and API-first design sits at the higher end. Compliance implementation (SOC 2, GDPR, HIPAA) adds cost to every SaaS project, budget for it from the start. eTechViral provides a scoped estimate after a free requirements and architecture review call.

A focused MVP with core product functionality, subscription billing integration, and user authentication typically takes 3 to 5 months. A full-featured B2B SaaS product with multi-tenant architecture, enterprise SSO, custom analytics, and SOC 2-aligned security typically takes 6 to 12 months. The timeline depends on feature scope, third-party integration complexity, compliance requirements, and how quickly your team can review and approve sprint deliverables. Compliance validation and penetration testing add time that cannot be shortened without increasing risk.

Multi-tenancy means a single deployed instance of your SaaS application serves multiple customers (tenants) from shared infrastructure, with each tenant's data isolated from others. It is the standard architecture for SaaS products because it reduces per-customer infrastructure cost, simplifies deployment, and allows the product to scale the number of customers without provisioning new infrastructure per customer. Single-tenant architecture, a separate deployment per customer, is appropriate when compliance requirements demand complete infrastructure isolation (some government or healthcare enterprise buyers require this) or when customers need to run the software on their own infrastructure. For most B2B SaaS products, multi-tenancy is the correct choice. We implement the appropriate isolation model (shared database, schema-per-tenant, or database-per-tenant) based on your compliance requirements and customer contract terms.

Subscription billing in SaaS requires a billing platform that handles subscription plan management, metered usage tracking, invoice generation, dunning (failed payment retry logic), and revenue recognition. The two most commonly used platforms are Stripe Billing and Chargebee. Stripe Billing is the right choice for most SaaS products, it handles flat-rate, per-seat, usage-based, and hybrid pricing models, integrates directly with Stripe's payment processing, and covers most markets globally. Chargebee or Recurly are better choices when you need advanced revenue recognition (ASC 606 / IFRS 15), complex pricing experiments, or multi-currency enterprise invoicing with purchase order workflows. We build the subscription billing integration, pricing plan configuration, customer billing portal, and webhook handling for subscription lifecycle events (upgrades, downgrades, cancellations, payment failures) as part of the core SaaS build.

SOC 2 (System and Organisation Controls 2) is the AICPA trust services framework that enterprise buyers use to assess a SaaS vendor's security controls before signing a contract. SOC 2 Type I is a point-in-time assessment of whether controls are designed correctly. SOC 2 Type II verifies that those controls operated effectively over a period of time, typically 6 to 12 months, and is what enterprise procurement teams require. If your target customers are mid-market or enterprise B2B buyers, you will face SOC 2 requests in the sales process. The earlier you build SOC 2-aligned architecture, the lower the cost of achieving certification. We build SaaS products with SOC 2 audit readiness from day one, producing the access control documentation, audit logs, change management records, and incident response procedures required for the Type II assessment.

Authentication for SaaS covers three use cases with different technical requirements. Consumer SaaS (end users signing up directly) uses email/password with OAuth 2.0 social login (Google, GitHub, Microsoft) and MFA for account security. B2B SaaS with individual account sign-up uses the same approach with team management and role-based access control (RBAC) added at the product layer. Enterprise B2B SaaS requires SAML 2.0 Single Sign-On (SSO) so enterprise customers can manage SaaS user access through their corporate identity provider (Okta, Azure AD, Google Workspace) without managing separate credentials. We implement authentication using Auth0 or AWS Cognito for most SaaS products, handling all three use cases, MFA, session management, and SAML SSO, and build RBAC at the application layer with tenant-scoped permission models. For SaaS products selling to enterprise buyers, SSO is typically a required feature by the time you reach your first $50K ARR enterprise deal.

Yes. We integrate AI into SaaS products across three functional categories: workflow automation (using AI to complete tasks that previously required manual user action), intelligent content generation (drafting, summarising, classifying, or structuring content within the product), and predictive analytics (surfacing signals from product data before the user queries for them). AI integration is done using OpenAI API (GPT-4o), Anthropic Claude API, or Google Gemini API for LLM-powered features, and custom ML models via AWS SageMaker or Google Vertex AI when product data volume justifies training. For SaaS products in regulated verticals (healthcare, financial services), AI outputs are scoped as decision-support features with human review steps, not fully autonomous actions, to meet regulatory requirements under the EU AI Act and relevant sector guidance.

We deploy SaaS infrastructure on AWS, Google Cloud Platform, and Azure depending on your existing tooling, compliance requirements, and team preferences. AWS is our primary choice for most SaaS products, the depth of managed services (RDS, ElastiCache, Lambda, CloudFront, ECS/EKS) reduces operational overhead and the compliance certifications (SOC 2, PCI-DSS, HIPAA-eligible services) align with the most common SaaS compliance requirements. Google Cloud is preferred when the SaaS product relies heavily on BigQuery for analytics, Firebase for real-time features, or Vertex AI for ML. Azure is the right choice for enterprise SaaS products where customers use Azure Active Directory for SSO and expect Microsoft-ecosystem integration. All infrastructure is provisioned using Terraform for version-controlled, reproducible environments across development, staging, and production.

Security for SaaS products covers four layers: data security (AES-256 encryption at rest, TLS 1.3 in transit, tokenisation for sensitive identifiers), application security (OWASP ASVS Level 2 compliance, input validation, parameterised queries to prevent SQL injection, CSRF protection), infrastructure security (network segmentation, zero-trust access controls, WAF, DDoS protection), and operational security (penetration testing before each major release, secrets management via HashiCorp Vault or AWS Secrets Manager, vulnerability scanning in CI/CD pipelines). For B2B SaaS, we also implement the audit logging and access control evidence required for SOC 2 Type II audit, logging who accessed what data, when, from where, and what changed. Security is not a pre-launch checklist, it is built into the architecture from the first sprint and validated at each sprint review.

Yes. Post-launch support for SaaS products runs on a tiered SLA model: L1 support covers user-facing issues, configuration changes, and access management with a 4-hour response target. L2 covers application-level bugs, integration failures, and performance degradation with a 2-hour response target. L3 covers infrastructure incidents, security vulnerabilities, and data integrity issues with a 1-hour response target for production-impacting incidents. Beyond incident response, support plans include monthly security patch cycles, quarterly compliance review reports for SOC 2 and GDPR obligations, infrastructure cost optimization reviews, and sprint retainers for ongoing feature development. Your SaaS product's technology requirements will change as your user base grows, support plans are structured to evolve with the product, not lock you into the initial build.