What Will My Baby Look Like? Why No App Can Really Predict

Baby-prediction apps are fun, but they're closer to a magic 8-ball than science. Here's why — and what's actually worth doing.

"What will our baby look like?" is one of the most-searched questions for new and expecting parents — and a whole genre of apps promises an answer. The honest truth: no app can reliably predict a baby's face. Here's why, and what's actually fun and worthwhile instead.

Why prediction doesn't really work

A baby's appearance is the result of a random shuffle of genes from both parents, and most facial traits are polygenic — shaped by many genes interacting, not one. Even with both parents' photos, the number of possible outcomes is enormous. Most 'baby generators' simply blend or morph the two faces, which looks neat but has little to do with how genetics will actually play out.

What actually shapes the result

• The genetic shuffle — each child gets a different random half from each parent.
• Dominant and recessive interactions that don't average neatly.
• Time — newborn faces change enormously, so even the real baby won't look 'final' for years (the timeline here).

What's actually worth doing

Once your little one arrives, the fun question flips from *predict* to *compare*: who does the baby actually favor right now? That's something you can genuinely play with using who does my baby look like? — it compares your baby to both parents for a shareable, just-for-fun verdict. And if you're curious why babies favor one parent at first, see why some babies look more like one parent.