Key metrics

• Attention : How effectively the business attracts visitors.
• Enrollment : How many visitors become free or trial users, if you're relying on one of these models to market the service.
• Stickiness : How much the customers use the product.
• Conversion : How many of the users become paying customers, and how many of those switch to a higher-paying tier.
• Revenue per customer : How much money a customer brings in within a given time period.
• Customer acquisition cost : How much it costs to get a paying user.
• Virality : How likely customers are to invite others and spread the word, and how long it takes them to do so.
• Upselling : What makes customers increase their spending, and how often that happens.
• Uptime and reliability : How many complaints, problem escalations, or outages the company has.
• Churn : How many users and customers leave in a given time period.
• Lifetime value : How much customers are worth from cradle to grave.

Life of SaaS company

Reference

• Lean analytics