What are some examples of successful growth hacking as discussed in the book 'Hacking Growth: How Today’s Fastest-Growing Companies Drive Breakout Success'?

The book 'Hacking Growth: How Today’s Fastest-Growing Companies Drive Breakout Success' does not provide specific examples in the given content. However, it discusses various growth hacking strategies. Initial retention hacks include experiments that accelerate the time to the 'Aha' moment or trigger initiatives such as mobile notifications or emails that prompt the user to action. Medium-term retention hacks that create habits may follow the 'engagement loop' as defined by customer behavior expert Nir Eyal. A 'trigger' leads to an 'action,' followed by a 'reward,' which leads to greater 'investment.' Designing and reinforcing this loop for your product leads to medium-term retention. Lastly, long-term retention hacks should focus on improving both existing product features while also slowly introducing new product improvements.