A software as a service (SaaS) product can be profitable in numerous ways:

1. Subscription-based model: Customers pay a regular price to utilize the software in a subscription-based approach. This fee might be assessed monthly, quarterly, or annually.
2. Pay-per-use model: Customers pay for each use of the program in a pay-per-use basis. This can be determined by the number of users, the volume of data handled, or other variables.
3. Freemium Model: The software is accessible for free in this model, but users can upgrade to a paid version for additional features or support.
4. Advertising model: The program is supplied for free and is financed by advertising revenue in this model.
5. Productivity model: In this approach, software is utilized to boost productivity and efficiency, which saves the client money. The customer pays the SaaS provider a percentage of the cost savings as a charge.
6. Model of consultation: In this model, the SaaS supplier provides consulting services in addition to the software. Customers must pay for both software and consulting services.

It's critical to think about which business model is ideal for your SaaS product and target market. Experimenting with multiple models to find the one that works best for your company may be advantageous.