The primary source is always the best source. While they often ask for a "donación sugerida" (suggested donation) to download the complete pack, the funds go toward maintaining the site.
While the full official 2025 bundles are paid, you can find free planning materials and "Lainitas-style" resources here: Material Educativo planeaciones lainitas gratis 2025
For gratis , it’s a 5-star resource. For quality and usability , it’s a 3-star. Overall, a solid 4 stars – just keep your expectations realistic and your ad-blocker on. The primary source is always the best source