Not all software projects are the same. A common confusion in budget planning is treating every development project as equivalent. The type of project determines the cost structure, the timeline, and the risk profile. Here are the five types and what each actually costs.
1. Marketing websites and landing pages
A marketing website presents information: what the company does, what it offers, who it serves, and how to get in touch. It may include a blog, case studies, pricing pages, and conversion-focused landing pages.
Complexity factors:
- Number of unique page designs
- Animation and interactive elements
- CMS integration for non-technical content editing
- Personalization or A/B testing requirements
- Multilingual support
Realistic cost range:
- Template-based with a designer: $3,000 to $8,000
- Custom design, standard CMS: $10,000 to $30,000
- Complex custom design with advanced CMS and integrations: $30,000 to $70,000
Timeline: 4 to 12 weeks depending on scope and approval cycles.
What drives it over budget: Design revision cycles that are not managed, content not provided by the client on time (development waits for client content), unclear decisions about the CMS platform, and late additions of features not in the original scope.
2. SaaS applications
Software as a service: a web application that users subscribe to and access through a browser. Users have accounts. There is subscription billing. The application has a core workflow that delivers value.
Complexity factors:
- Number of distinct user workflows
- Team and organization features (multi-user, roles, permissions)
- Third-party integrations
- Real-time features (live updates, notifications)
- Reporting and analytics
Realistic cost range:
- Simple SaaS MVP (one core workflow, auth, billing): $30,000 to $70,000
- Moderate SaaS (multi-workflow, integrations, basic team features): $70,000 to $150,000
- Complex SaaS (enterprise features, advanced permissions, extensive integrations): $150,000 to $400,000
Timeline: 8 to 40 weeks depending on scope.
What drives it over budget: Scope additions mid-development, underestimated integration complexity, unclear product requirements, and the hidden cost of properly implemented authentication and billing systems.
3. Internal business tools and automation
Custom tools built for internal use: operational dashboards, process automation, reporting systems, data pipelines, integrations between existing systems. These do not need to win design awards; they need to work reliably and save time.
Complexity factors:
- Data sources and integration points
- Number of user roles and permissions
- Reporting and export requirements
- Integration with existing internal systems
Realistic cost range:
- Simple internal tool (data entry, reporting, one integration): $10,000 to $30,000
- Moderate internal automation (multiple integrations, complex workflows): $30,000 to $80,000
- Complex enterprise automation (extensive data processing, multiple systems, compliance requirements): $80,000 to $250,000
Timeline: 4 to 24 weeks.
What drives it over budget: Existing systems being more complex than described, data quality problems that require cleaning before the tool can work with the data, changing requirements from internal stakeholders, and undocumented edge cases in current manual processes.
4. Mobile applications
Native or cross-platform mobile apps for iOS and Android. Ranges from simple informational apps to complex applications with real-time features, offline support, and deep device integration.
Complexity factors:
- Cross-platform vs. native for one or both platforms
- Backend requirements (does a backend need to be built?)
- Real-time features, offline functionality
- Device features (camera, GPS, Bluetooth, notifications)
- App store review requirements
Realistic cost range:
- Simple cross-platform app with existing backend: $20,000 to $45,000
- Moderate app with new backend: $50,000 to $120,000
- Complex app (real-time, offline, device features): $100,000 to $300,000
Timeline: 12 to 40 weeks.
What drives it over budget: Building for both platforms without cross-platform development, underestimated backend complexity, app store review rejections requiring development changes, and performance optimization that was not budgeted.
5. Integrations and API work
Connecting existing systems together, building APIs for others to consume, and automating data flows between platforms. This is often the project type with the widest gap between perceived and actual complexity.
Complexity factors:
- Quality and documentation of third-party APIs
- Data transformation requirements
- Error handling and retry logic
- Monitoring and alerting requirements
- Authentication complexity
Realistic cost range:
- Simple integration (two well-documented APIs, standard data): $5,000 to $20,000
- Moderate integration (multiple systems, data transformation): $20,000 to $60,000
- Complex integration (legacy systems, poor documentation, custom protocols): $60,000 to $200,000
Timeline: 2 to 16 weeks.
What drives it over budget: External APIs behaving differently than documented, data quality problems in source systems, and rate limits that require architectural changes to work within.
How to know which type your project is
Most projects are primarily one type with elements of others. A SaaS application with a mobile companion app and custom API integrations is primarily a SaaS application with additional scope.
When budgeting, identify the primary type and estimate accordingly. Then add the cost of the additional components. A SaaS application at $80,000 plus a mobile app at $40,000 (using the existing backend) plus one complex integration at $30,000 is a $150,000 project, not a $80,000 project.
Use the MVP cost calculator to build a more precise estimate for your specific project. Then get in touch to discuss the scope and what it would take to build it properly.