- Change the heading font to something sans-serif, it feels very default, and look at typographic hierarchy, all those fonts are white and make it look a bit of a wall-of-text.
- Safari hasn't looked like that for a long time, get some up-to-date screenshots, your making your product look outdated already.
- Two screenshots one over the other is making the page needlessly long, use a carousel or similar so you have just have one that you can scroll side to side.
- You want people to sign up but the box is buried down the bottom of the page, work out a way to get that raised up.
- The pricing plan structure feels a bit empty, if you're not offering more functionality for more money, try and make the higher end ones more persuasive by doing something like indicating what kind of savings you're getting by choosing a more expensive plan.