Evidence, not instinct.
A schedule that adjusts to the day you actually had.
Log a bottle and the rest of the day re-projects around it. When a late feed leaves no room for a full nap, Bobbychips says so, offers the longest cat nap that still protects bedtime, and names the bottle that did it.
Where the schedule actually comes from
Most trackers either log and stop, or hand you a plan and decline to explain it. This is the whole mechanism, in three steps.
You set the parameters
Wake window, nap length, bottles a day, first feed, bedtime. Onboarding seeds them from age appropriate WHO and CDC guidance so you are not staring at a blank form. Every one of them is yours to change, and changing one changes the plan immediately.
Today re-anchors the plan
The rest of the day is projected against what you logged today, not against a generic age curve. A bottle that ran forty minutes late moves everything after it. End the nap early and the next wake window starts early.
It tells you when the day stops fitting
If a full nap no longer leaves room before bedtime, Bobbychips offers the longest cat nap that does fit, names the bottle that shifted the window, and says what that choice protected. It does not quietly show you one nap fewer.
One engine, two surfaces. The countdown on your screen and the reminder that arrives on your phone are computed by the same code, from the same inputs. They cannot disagree with each other, which is not true of most apps that do both.
And here is where the adjusting stops. Within the day, the plan moves with what you log. Across days, nothing retunes itself behind your back: the wake window, the nap length and the feed count stay exactly what you set them to until you change them. Bobbychips adjusts. It does not quietly decide it knows your baby better than you do.
Nothing is shown to you until the data supports it
Bobbychips looks for relationships across your logged days. It will not print one unless it clears a bar you can check, and when it does print one it hands you the numbers rather than the conclusion.
- ✓At least seven complete days before a card can appear at all, and days you have marked atypical are left out.
- ✓A correlation of 0.45 or better. Below that it stays quiet rather than filling the screen with noise.
- ✓The coefficient, the day count, and the effect in real units printed on the card, every time.
- ✓An explicit note that this is association, not cause. It is on every card and it does not go away.
Real percentile math, not a curve you eyeball
Weight, length and head circumference plotted against both the WHO growth standards and the CDC growth charts, computed from the published LMS parameters with exact z-score math rather than reading a value off a printed chart.
- ✓Both standards, switchable. WHO is the growth standard for infants; US clinics commonly plot on CDC. You can see either without exporting anything.
- ✓Corrected age for babies born early is a toggle, applied consistently across every chart.
- ✓A printable pre-visit summary to take to a check-up, with room for the questions you keep forgetting to ask.
- ✓It is a record, not an assessment. Bobbychips plots the number and stops there. Reading it is your pediatrician's job.
Fast enough to actually use at 3am
A method is worthless if logging is a chore, because then the data is wrong and everything built on it is wrong too.
One tap for everything
Bottles, nursing on either side, pumping and output, naps, overnight sleep, wet diapers, poops, solids and medications. All editable, all undoable.
Voice, with no setup
"Hey Siri, log a bottle in Bobbychips." No shortcut to build first. You can ask as well: how long since the last bottle, what is next, how the day is going.
An Apple Watch app
Installs alongside the iPhone app with no setup of its own. Log a bottle, a nap, a diaper, bedtime or a wake-up from your wrist, and ask it the same questions.
On the lock screen
A Live Activity and a home screen widget count down to the next feed or nap without opening the app. Both update when you log by voice.
Works with no signal
Writes queue locally and sync when you are back. The nursery at 3am is exactly where connectivity is worst and logging matters most.
Everyone on one timeline
Share with a partner, a grandparent or a nanny by invite link. Daycare mode does not score you on hours nobody could log. Each baby has its own timezone, so travel does not scramble your history.
What Bobbychips will not do
This list is here because in this category it is the more useful half of the pitch.
ranking
It will not tell you your baby is behind. No score against other babies, and no percentile framed as a problem. A percentile is a position on a chart, and it belongs in a conversation with your pediatrician, not in a push notification.
program
It has no opinion about sleep training and there is nothing to enroll in. You set the targets. The app does the arithmetic against them and stays out of the argument.
guessing
It does not read from Apple Health, a wearable or a smart bassinet. Every number in the app came from something a person logged, which is the only reason the numbers mean what they say.
advice
It gives you general information based on your own logs and on published WHO and CDC material. It is not medical advice and it does not diagnose anything. For anything concerning, talk to your pediatrician.
It was written on paternity leave
One father, three months at home with a newborn, and no way to hold the schedule in his head past about day four. The apps he tried either put the part that did the thinking behind a subscription, or answered a question about numbers with reassurance.
So he wrote the arithmetic. It was used every single day of that leave on a real baby: the 3am bottle, the nap that fell apart, the week the wake windows changed and nothing lined up any more. Every part of it that failed got rewritten, because the person living with the failure was the person who had to fix it.
That is the whole origin story. No sleep consultants on retainer, no advisory board, no venture funding, and no growth team deciding which feature to put behind a paywall this quarter. If something in here seems oddly specific, it is because it went wrong once at two in the morning.
Check it against your own baby
Free, no ads. The demo is the real app running on a real dataset, so you can see the method before you type anything.