You handle the baby. We'll remember the rest.

Which side was it? When did she last eat? Was that the third dirty diaper or the fourth? YummyYucky keeps the whole day in one calm place, feeds, pumping, sleep, diapers, medicines and tummy time, most of it one tap, so the answer is a glance instead of a guess at 3 a.m. And when solids start, it takes the scare out of those too: log every bite and call it yummy or yucky, and keep a close eye on allergens with a watch window.

The whole day, not just the food

Babies don't run on a food schedule alone, so neither do we. Log solids, breast and bottle feeds, sleep, and diapers side by side, and the patterns start to show: the diaper that followed the beets, the nap that ran long, the day the bottles crept up. It's the whole messy day in one calm place, and most of it is one tap, or one sentence said out loud, transcribed right on your phone so your voice never leaves it. We'll even nudge you to check on a nap that's running long.

Nursing gets a left and right timer that keeps time with the phone locked and shows on your partner's phone, and a top-up bottle after nursing saves with it as one feed. Pumping sits right on the Feeds tab. A dose of medicine that cannot be right (0, no unit, or far above any infant dose) is refused before it is saved. And the Activity tab keeps tummy time, baths, toothbrushing, time outside, story time, play time and nail trims.

A free safety net for allergens

Introducing the common allergens early is one of the best things you can do, but keeping track of who tried what, when, and whether to bring it back is a memory game nobody wins on three hours of sleep. So we built the allergen tracker: log a first taste and YummyYucky opens a short watch window, gives you one place to log anything that follows, and reminds you to keep each allergen in rotation once it has been introduced, even nudging you when one has been off the menu too long. It's free, on every plan, because safety shouldn't sit behind a paywall.

And if allergies run in your family, note them once so they are part of the record as you introduce foods. A few allergens are closely related, cashew and pistachio for example, so YummyYucky can suggest adding the related one to your watchlist. It is your choice, not a diagnosis: a family history does not mean your baby is allergic, and being allergic to one is often fine with the rest, so questions about timing belong with your pediatrician or allergist.

An encyclopedia, not just a tracker

Behind the logging sits a real library: 1100+ baby foods, most with a full guide to the age, prep, choking, and allergens in plain language, plus 160 in-depth guides answering the questions parents actually Google, and 35 baby-safe spices. The health and safety advice in it comes from published pediatric guidance, and 151 of the 160 guides list their sources on the page. More on that below.

The parts nobody else bothers with

Two of our favorites. YummyYucky counts down your diaper and formula stash, warns you before you hit zero, and finds the best price on the brand you actually use. And every first, the first avocado, the first spoon held, the betrayal face at lemon, quietly fills a keepsake you'll want years from now, with the photos and videos of every face there to tap open and relive full-screen. Useful and sentimental, in the same app.

On Plus, a letter about each month you logged lands in your inbox on the 1st and ends with the month in numbers: hours nursing, naps and nights, diapers and blowouts, bottles and doses, counted from your log and never estimated.

What we believe

• Parent-funded, never data-funded. Plus subscribers pay for the free tier, so we never have to sell what your family does. No ad trackers, no data brokers.
• Safety should be free. The allergen tracker and the food guidance aren't upsells.
• Grounded, not guessed. Our guidance comes from published pediatric sources, and we say where it comes from.
• Calm beats scary. We take the scare out of starting solids on purpose.

Why we built it

The guidance flipped. Introducing common allergens early and often actually helps. But remembering who tried what, when, and how it went, on three hours of sleep? Not happening. So we built the part that remembers, connected the diaper and the reaction back to what the baby actually ate, and left you the good part: the faces.

Our story

YummyYucky started with our founder, Nancy, a pile of tracking notebooks, and a newborn who needed watching closely. It grew from a way to track those first bites into the whole-day tracker it is now. Read Nancy's story →

How we write our guides

Our guides are written from widely published pediatric guidance (the American Academy of Pediatrics, the NIAID 2017 addendum guidelines, and the LEAP study). Our editorial and medical policy spells out how we research, source, and update them. They are general information, not medical advice, and are pending review by a pediatric professional.