Developed by Alistair Croll and Ben Yoskovitz, the Lean Analytics Stage framework combines aspects of many different models and is ideal for improving startup growth. There are five pillars to this model:

• Empathy: During the product development stage, you’ll spend most of your time listening to customers, empathizing with their challenges, and taking in as much feedback as they are willing to provide. Once you have identified a problem you can solve to create your minimum viable product (MVP), you can then move on to the next stage.
• Stickiness: Focus on engagement and retention as you work to create something that yields return customers. When you’ve got an engaged base and a low attrition rate, you can continue to stage three.
• Virality: Before you try to attract customers through heavy advertising spending, focus on your existing customers. As your organic growth rates improve, you can move to stage four.
• Revenue: Without money, you’ll be out of business quickly. Pay attention to your customer acquisition cost metrics to make sure your customers spend more money than they cost to acquire. Once you’ve reached your revenue goals, you can move to the final stage.
• Scale: You’ve got explicit knowledge of your product and your market. Now, it’s time to increase the revenue from your current market and potentially enter into new markets.