Tools need to be evaluated against your long term goals. It won't be easy to migrate and will likely face lock-in later. Consider the following before picking the right tool for your business.
Make sure the tools you choose give you the option to scale or remain cost-effective at scale. Some free tools can easily cost more in the long run.
If you are not sure, you might be pleasantly surprised by how well a spreadsheet works for now. This will give you a chance to delay the decision until you have more information.
