If you’re focused on building and monetizing a media-centric newsletter, choose beehiiv. Its built-in growth tools and polished editor cater specifically to newsletter operators and content businesses looking to expand their audience and revenue through ads and subscriptions. However, if your needs include managing customer lifecycles or a simple automation tool, you’ll want to steer clear of beehiiv.
On the other hand, if you're part of a product team or a SaaS builder that requires in-depth product analytics and experimentation capabilities, go for PostHog. Its comprehensive suite of analytics tools allows for detailed insights and optimizations. Just be prepared for the learning curve and potential costs associated with high event volumes. If your focus is solely on straightforward analytics without extensive event management, then PostHog may not be the best fit.