The build vs buy decision is one of the most important technology choices a business makes. SaaS is fast and affordable, custom software is flexible and unique.
SaaS (Software as a Service)
Off-the-shelf software you rent, typically monthly or annually.
Pros
- Fast deployment. Start using it today
- Lower upfront cost. No development investment
- No maintenance. Provider handles updates and infrastructure
- Proven features. Built based on many customers' needs
- Support included. Help desk and documentation
Cons
- Limited customization. You fit their model
- Recurring cost. Pay forever, cost grows with users
- Feature dependency. You get what they build, when they build it
- Data ownership concerns. Your data lives in their system
- Vendor risk. They could change pricing, shut down, or be acquired
Custom Software
Software built specifically for your business.
Pros
- Exact fit. Built around your processes
- Full control. You own the code and data
- No per-user costs. Scale without increasing software costs
- Competitive advantage. Unique capabilities competitors can't buy
- Integration. Built to connect with your existing systems
Cons
- High upfront cost. Development is an investment
- Time to build. Months, not days
- Maintenance burden. You handle updates, bugs, and infrastructure
- Risk. Building software is hard and can go wrong
- Team needed. Developers, or a partner like Switch 2 One
When to Choose SaaS
- Standard processes (accounting, email, CRM basics)
- You need it now
- Budget is limited
- Your needs match the product
- You are small or early-stage
- The function is not your competitive advantage
When to Choose Custom
- Your process is unique and differentiating
- SaaS tools don't fit your workflow
- You need deep integration with existing systems
- You want to own the data and IP
- You have scale that makes SaaS expensive
- The software is core to your business model
A Hybrid Approach
- SaaS for standard functions. Accounting, email, basic CRM
- Custom for differentiation. The parts that make you unique
- Integration layer. Connect SaaS and custom components
- This balances speed, cost, and flexibility
Cost Comparison
- SaaS. Low upfront, high ongoing. Break-even depends on scale
- Custom. High upfront, low ongoing. Better at scale
- Calculate 3-year total cost of ownership for a fair comparison
How Switch 2 One Helps
We help you decide and build the right software for your needs. Book a free strategy session.