What is the difference between financiers and madeleines?

Financiers and madeleines are popular baked sweets that are often found at convenience stores and cake shops. They taste somewhat similar, but they have interesting differences. The basic ingredients are almost the same, but financiers use egg whites and almond powder, and madeleines use whole eggs. The texture of the financier is crispy, and the texture of the madeleine is soft. Financiers and madeleines are very similar, but in fact, the origin, ingredients, and texture are different.