While growing my current company, I stumbled upon a technique that really helps with cold outreach. The basic idea is to include personalized images of mockups or screenshots of your app in your outreach email. Here is an example of what two different potential clients might see in their email. Think of it like mail merge for images:

The reason this works, is because a person's interest is instantly heightened when they see their name, company or logo in an image. Here are some stats we've seen:
Once I realized this worked so well, I created a scrappy tool to do this at scale. I am reaching out to offer this process to 5 people, free of charge with no strings attached. In exchange, I will learn how less technical people might use a tool like this.
Let me know if you're interested or if you have tried something like this before.