Chartbuddy makes the charts finance and strategy teams need: waterfalls, mekkos, stacked bars and combo charts, 14 types in all, with smart annotations, smart axes, number formats and brand styling. Build a chart in the HTML your AI generates, in the Hub desktop editor, or natively inside Google Slides. It travels like an image and opens fully editable in the next tool. Embed is free. Hub is free for the first 1,000 users in 2026. Google Slides gives you 10 free sessions, no card.