In today’s digital era, leveraging the right technology is critical to a company’s success. Two popular approaches are the Software as a Service (SaaS) model and self-hosted solutions, both offering unique benefits depending on a business’s needs. Understanding the differences between SaaS and self-hosted platforms is crucial when choosing the best solution, with key factors like cost, control, and security playing a significant role.
This article will break down the core concepts of both SaaS and self-hosted models, compare their key features in the financial sector, and offer guidance on which model may be most suitable for your business.

SaaS Business Model: What It Is and How It Works
SaaS, or Software as a Service, is a cloud-based software delivery model where users access applications hosted online by a provider. The provider manages everything — from updates to maintenance — removing the need for local installation. Popular examples of SaaS include Dropbox, Salesforce, and Google Workspace.
For example, Google Workspace offers online productivity tools that users can access from any device, while Google handles the security, software management, and updates. This enables users to focus on their tasks without worrying about IT maintenance.
In the financial sector, SaaS has transformed operations through solutions like Brokerage as a Service (BaaS), allowing financial institutions to offer trading services without becoming brokers. BaaS platforms offer cloud-based brokerage tools, seamless API integration, and enhanced security, all of which are crucial in the highly regulated financial industry.
What is Self-Hosted?
A self-hosted solution involves running software on your own servers or infrastructure instead of relying on external vendors. This model offers complete control over software, hardware, and the network environment. Examples of self-hosted solutions include web servers like Apache or Nginx and platforms like WordPress.
For instance, if you’re creating a website from scratch, you might use a web server like Nginx or Apache to host your files, giving you full control over performance, security, and updates.
In the financial sector, self-hosted platforms provide financial institutions with the ability to manage their infrastructure in-house, offering high levels of security and customisation. This setup allows for proprietary technology integration and strict compliance adherence—features that are particularly appealing to institutions that need significant control over their IT systems.
SaaS vs. Self-Hosted Models: A Comparison
Now that we’ve explored the basics of both models, let’s compare them across several key areas to help guide your decision.
1. Cost
- SaaS: Low upfront costs, typically covered by a subscription fee. No need to purchase software licenses or maintain infrastructure.
- Self-Hosted: High initial investment in software, hardware, and ongoing maintenance, plus the cost of IT support.
2. Scalability
- SaaS: Scales easily as the provider handles infrastructure. Costs increase with usage but remain predictable.
- Self-Hosted: Scaling requires additional investment in hardware and IT resources, often leading to unpredictable expenses.
3. Accessibility
- SaaS: Instant deployment and accessible from any device with an internet connection.
- Self-Hosted: Requires extensive setup and IT expertise, with access often limited to local networks unless configured for secure remote access.
4. Security
- SaaS: Security is managed by the provider, but data is stored off-site, which may raise concerns about data sovereignty and vulnerability.
- Self-Hosted: Offers complete control over data security, with all data stored locally or on private cloud environments.
5. Customisation
- SaaS: Limited customisation, as features are managed by the provider.
- Self-Hosted: Extensive customisation options, ideal for businesses with specific needs and complex regulatory requirements.
6. Maintenance
- SaaS: Maintenance, updates, and support are handled by the provider.
- Self-Hosted: Requires internal IT teams or external contractors for updates, maintenance, and troubleshooting.
Final Thoughts
Both SaaS and self-hosted models offer distinct advantages, depending on your business’s needs. SaaS is ideal for businesses with limited IT resources, offering a low-cost, scalable, and hassle-free solution. In contrast, self-hosted solutions provide more control, customisation, and security but require higher investment and ongoing management.
To make the right choice, assess your company’s long-term goals, scalability needs, and resource capabilities. Whether it’s the flexibility and convenience of SaaS or the control and customisation of self-hosted solutions, the right model will depend on your business priorities and growth strategy.













