The AI baby tracker
new moms text at 3am.
An AI assistant for pregnancy and childhood. She remembers the little details about your child, and messages you first when something looks off — not a diagnosis. Coming to iPhone and Android — join the private beta for early access.
Free while we're in private beta. No card. See plans
Made by parents who've been there. Built for the 3am version of you.
Susan
online · in the Hey Susan app
2:47 AM
2:47 AM
5:51 AM
7:38 PM
Watch how Susan works
Our Product Hunt launch video — landing here shortly.
A look inside — real conversations, real screens
This is the part other baby apps don't have: you just talk, and she knows your baby. Ask “how was her week?” and the real numbers come back. Start the nap timer with one tap and it keeps running even if the app closes. Native iPhone and Android apps — join the private beta for early access.
Has it seemed to improve since then?
She remembers — for keeps
🍼 feeds: ~4.2 a day, holding steady ██████▆
😴 sleep: ~13h 3m a day, easing down ██████▄
🧷 diapers: ~5.8 a day ███████
Ask for any stretch, in plain words
And when you'd rather tap than type — every screen is right there in the app, one tap away:
Today — what's coming up
Sleep — the rhythm ahead
Grow — paths and milestones
Charts — see the patterns
Timeline — every entry
Chat — just talk to her
What makes Susan different
Other apps wait for you to open them. Susan learns your baby, reaches out first, guides the whole journey from pregnancy toward 18, and even checks in on you and your partner.
She remembers your baby
Not generic data — your baby. Eczema, the cheek rash from Wednesday, how feeding has been going. You don't catch her up every time you open the chat.
She messages you first
New parents run on broken sleep, and 72% say it took a toll on their mental health.1 In that fog, opening another app to ask for help is the last thing you have energy for — so Susan reaches out first. In the newborn weeks she checks in every few hours — a real message in your chat, not a notification you swipe away: “How did the last feed go? Any diapers since 2am?”
Simple by default, powerful when you want it
In the newborn weeks, new mothers often feel a heavier mental load — foggier memory and concentration when you're running on little sleep.2 On top of that is the running tally of feeds, diapers and naps, and what's due next — so Susan takes the tally off your head. Type “4oz at 9am” and she logs it — or tap it in on the dial. Start a sleep timer with one tap, log pumping too, then get a clean dashboard and visual reports (timeline, calendar & charts) — all in the app.
The roadmap
HeyJourney!
A guided timeline that starts in pregnancy and grows with your child: the checkups, milestones, vaccines — and the to-dos coming up next — and you can check each one off as you go. Most apps track a single phase. HeyJourney! is the whole arc — birth toward 18 — in one place. See the timeline ↓
HeyJourney! timeline
HeyBeNice!
The relationship
HeyBeNice!
New babies are exhausting, and the person you snap at most is the one on your team. Tell Susan what you actually feel and she hands you back a kinder version to send — your point gets through, the fight doesn't start. A translator and a gentle coach, not a therapist. Most baby apps stop at feeds and diapers; Susan is for all of new-parent life. See how it works ↓
The plan
A shared plan board — you and Susan, same page
A simple board with four soft lanes — Someday, This chapter, Working on it, Done — for skills, milestones, and the little admin, like booking the 9-month checkup. Susan adds her own suggestions with a one-line “why now,” and you drag a card over, tap Not now, or move things yourself. No score, no overdue red — just what's next for your family.
Plan board
Learning Paths
The paths
Learning Paths — birth to 18, browse by area
Motor, language, music, sports, money sense, and more — browse by area, at your own pace. Add a path to your plan and Susan turns it into a next step on the board, with a hedged window instead of a deadline. Change your mind anytime — removing a path is one tap. Susan lays out age-by-age learning paths from birth toward 18, with guidance drawing on AAP, CDC and WHO.
The start
Onboarding in a few taps
Download the app, share your baby's due date or birthday, and Susan is ready to go — tracking, reminding, and reaching out. The whole flow is a few taps; you're set up before the kettle boils.
Onboarding
Hey Susan is an AI assistant, not a medical device. She notices patterns and nudges you to call a clinician — she does not diagnose.
Sources: 1. ergoPouch/Bounty parent-sleep survey · 2. Postpartum cognitive study (bioRxiv, 2021)
Most baby apps are a logbook. Susan has a brain.
Susan runs on nine faculties, modeled loosely on how memory and attention work in the brain — the things a mind does that a tracker can't, and the reason she actually knows your baby.
Notices what’s off
She learns your baby's normal, so she notices the moment something's off — a late feed, a skipped nap.
A picture that keeps building
A running, evolving picture of your baby, built up over every log instead of starting from zero each time.
Knows who your baby is
She turns scattered logs into real knowledge of who your baby is and how they're doing.
What matters stays in view
The things that matter are kept in front of you, not buried under yesterday's logs.
Tone that fits the moment
Gently when it's a worry, lighter for the everyday.
She learns you too
She learns how you like to be talked to, and speaks to you that way.
She stays on it
When something serious happens she doesn't just note it and move on: she asks what happened, helps you keep track of what was done, and checks back in over the days that follow.
A protective instinct
For the rare things that really matter, she keeps the single most important next step right in front of you until it's handled.
One purpose behind it all
Every one of these is in service of a single thing: helping carry the load, so the hard parts feel a little lighter.
Hey Susan is an AI assistant, not a medical device. She notices patterns and points you to your pediatrician — she does not diagnose.
A mind that plans ahead — not just a logbook.
Most apps store what happened. Susan remembers it, plans what's next, and grows with your child.
Built-in ongoing memory
Built-in ongoing memory of your child — her allergies, her rhythms, the little details you'd rather not have to repeat at 3am.
Plans the day with you
She turns what she knows into a plan for today — naps, feeds, what's next — so you're not guessing.
Learning paths, birth to 18
Age-by-age, she suggests how to nurture the next skill — motor, language, emotions, later focus and money sense — and helps you track how it's going.
She shows her work.
Every sleep window tells you where the number actually came from — your own baby's logs, or what's typical for their age. Feed windows do the same whenever there's enough signal to say so.
When it's really your baby
Once she has enough of your own logged naps for your baby's pattern to move the number, she says so on the card:
“Based on your own logs — this window follows your baby's own recent wake windows.”
And when it isn't yet
Early on, she's working from the age norms — and she tells you that too, instead of letting a general range look more personal than it is:
“This window is typical for this age — Hey SleepTime will tune it as your logs grow.”
Feeds, the same way
A feed rhythm reads “about every 3h (recent)” when it's your baby's own recent pattern, and “(age-typical)” when it's the age norm — so the label never oversells the number behind it.
It's the same instinct as citing her sources: you should always be able to see what a number is standing on. We'd rather tell you when we're generalizing than let a guess wear your baby's name.
HeyJourney! — the whole journey on one timeline
From pregnancy through the growing-up years, Susan lays out the checkups, milestones, paperwork, and money to-dos ahead — shows you which ones are current for your baby — and you check each one off as you go. 83 checkpoints across four phases, in the HeyJourney! tab or by texting /journey. Most apps track a single phase; this is the whole arc in one place.
Pregnancy
from a positive test- Book your first prenatal appointment
- Anatomy ultrasound window
- Get on daycare waitlists early
- Start planning leave and a baby budget
- Pack a hospital bag and install the car seat
+ 11 more in this phase
Newborn
0 to 3 months- Jaundice watch in the first days
- First pediatrician visit
- First social smiles
- Register the birth and apply for documents
- Two-month visit and first vaccines
+ 9 more in this phase
Infant
4 to 12 months- Six-month visit and starting solids
- Sitting up and babbling
- Nine-month visit and a development check
- No honey before the first birthday
- Pulling up, cruising, and first words
+ 7 more in this phase
Toddler
1 to 3 years- First steps and first real words
- Eighteen-month visit and screenings
- Two-year visit and autism screening
- Running and two-word phrases
- Yearly money check-in
+ 36 more in this phase
- checkups & health
- milestones
- appointments & registrations
- money & paperwork
- getting ready
These are general reminders to help you keep track, not medical advice. Timing and what is right for your baby is always a conversation for your pediatrician, OB, or midwife.
Checkpoint selection draws on public guidance from the AAP's Bright Futures schedule, the CDC's “Learn the Signs. Act Early.” milestones, and the Canadian Paediatric Society. Hey Susan is not affiliated with or endorsed by these organizations.
How Susan works — you already know how to use her
There's nothing new to learn. Open the app and talk to Susan like a person — or tap over to the log dial. Here's the whole cheat-sheet.
1. Just text her, in plain words
You don't need commands for the everyday stuff. Tell Susan what happened the way you'd tell a partner:
- “fed 120ml” · “nursed 15 min” · “4oz bottle”
- “wet diaper” · “dirty diaper”
- “slept 45 min” · “down for a nap”
- “pumped 100ml”
- “how's my baby doing?” · “how long since the last feed?” · “how was his week?”
She logs it, keeps the running tally, and remembers your baby across the conversation.
2. A few shortcuts, if you like commands
| /menu | Say hi and pick what you'd like from a menu |
| /summary | Today's feeds, diapers and sleep so far |
| /sleep | When the next nap or feed is likely due |
| /journey | Where you are on the milestone timeline and what's coming up |
| /family | Share your baby's log with a partner or caregiver |
| /help | This cheat-sheet, any time |
| /settings | Turn reminders on or off, snooze, or mute |
| /reset | Erase everything and start over (you confirm first) |
(/family only shows once household sharing is on for your account.)
3. Prefer tapping? It's all in the app
The app opens to a simple tab bar — no separate login, every screen a tap away:
- Today — last feed, last nap, last diaper, and how today's going at a glance
- Sleep — the day's nap-and-bedtime rhythm, plus a gentle look at how it's likely to shift over the next few months, drawn from typical age ranges — a map, not a schedule to enforce, and no cry-it-out
- Grow — your pregnancy-to-18 HeyJourney! timeline; tap to check off milestones, checkups and vaccines
- Charts — visual reports with day-by-day, calendar and timeline views of feeds, sleep and diapers
- Chat — just talk to Susan, or tap over to the one-tap log dial and nap timer
- ✨ More — the Plan board and Learning Paths live here, alongside settings
4. She's careful where it counts
Susan isn't a doctor, and she says so. For anything urgent she'll point you to 911 or your pediatrician first — then she wants to hear what they said. The everyday stuff she handles; the scary stuff she hands to a human.
She already knows your baby
When you message Susan, you don't start over. She already knows your son is three weeks old. She knows you're breastfeeding and it's been hard. She knows you had a rough night on Wednesday and that you're worried about the rash on his cheek.
She doesn't need you to catch her up. She's already there.
Our son was born on a Saturday. For his first few days he wasn't feeding well — and we didn't realize we could have asked the nurses for formula to top him up. We were discharged a couple of days later, still awake every night, typing his symptoms into ChatGPT at 3 a.m. It gave good general info — but it had no idea this was our baby, on day three, with a pattern building since Tuesday. The next morning his face looked deeply yellow, and we went straight back to emergency — readmitted, this time topping him up with formula. He's fine.
Joanna and I kept coming back to the same thought: we had tools — the tools just didn't know us. Not our baby, not our history, not what day three meant.
Hey Susan is the assistant that knows you and your baby — not parenting in the abstract. She keeps track of the feeds and diapers and sleep so your own patterns are there when you want them, and she points you to your pediatrician for anything medical. She also asks how you're doing, because postpartum is real.
— Warren & Joanna, founders
How Susan compares
We do what the market leaders do — dashboard, visual reports, one-tap logging — plus the things they don't: she messages you first and checks in on you.
| Capability | Market leader #1 | Market leader #2 | Hey Susan |
|---|---|---|---|
| Messages you first | proactive check-ins (live in private beta) | ||
| Checks in on how *you're* doing | postpartum, not just the baby | ||
| Remembers your baby — for keeps | stores logs only | stores logs only | never resets, not generic data |
| A guided journey: pregnancy → the growing-up years | single-phase tracker | single-phase tracker | HeyJourney! — birth toward 18, check it off |
| Chat-first — nothing new to learn | tap through menus | tap through menus | native app + chat, 1-min setup |
| Log by text or a one-tap dial | in-app only | in-app only | type “4oz at 9am” or tap the dial |
| One-tap sleep timer | in-app only | tap start/stop, or just tell her | |
| Ask in plain language | tap through screens | tap through screens | “when was the last nap?” |
| Nap & feed predictions | personalized, paid tier | personalized nap count, in plain language — free in beta | |
| Dashboard + visual reports (timeline, calendar, charts) | all of it, in-chat | ||
| Emergency help: who to call, fast | hard-coded; shows who to call, doesn’t dial for you | ||
| Price | ~$14.99/mo | ~$9.99/mo | $99/yr (~$8/mo) or $14.99/mo |
Some passive trackers run about $45/year vs our $99. If low-cost logging is all you want, that's a fair pick. Susan does the thing they don't: she checks in on you. Join the free private beta and decide.
HeyBeNice! · live in private beta
Say the hard thing — kinder
New babies are exhausting, and the person you snap at most is the one on your team. Tell Susan what you actually feel — she hands you back a kinder version to send yourself. Your point gets through, the fight doesn't start.
What you feel
What Susan hands back to you
💬 Susan · your draft
It's more than a rewrite. By the Gottman Institute's research, almost 2 in 3 couples report a decline in relationship satisfaction in the first three years after a baby — and communication is the first thing to go. So Susan also coaches the small things that keep a team together: leading with appreciation, saying thank you, hearing each other out. Because she's your assistant for all of new-parent life — not just the feeds and diapers.
You can copy the kinder version and send it yourself — or let Susan pass it along. If you do, both people have to say yes: you tap to send, and your partner taps to open it before a single word of yours is visible. They can read the softened version, or unhide exactly what you typed. Nobody gets messaged by Susan without agreeing to it first.
A translator and a gentle coach — not a therapist. It helps you say things kinder; it doesn't replace real help. If a message ever points to someone being unsafe, Susan won't smooth it over — she points to real support instead.
Simple, honest pricing
Free while we're in private beta — and beta members lock in founding-member access. These are the plans we'll launch with: keep the basics free forever, or unlock the assistant that checks in on you.
Free
$0forever
- Track feeds, diapers & sleep by text
- Daily & weekly summaries on request
- Always-On features free during the private beta
Always-On
$99/yr at launch · just $8.25/mo
or $14.99/mo billed monthly
Everything in Free, plus:
- Proactive check-ins — she messages you first
- Nap & feed predictions in plain language
- Deeper memory across days and weeks
- A second caregiver included — one shared history, no asking twice
- The “worth a call” nudge when something looks off
Premium baby-care companions run $10–15/month, and the leaders lock their best AI behind a $120/year prepay. At launch Susan will be $99/year — about $8/month — or $14.99 month-to-month, cancel anytime. It's free while we're in private beta.
Proactive check-ins are live in the private beta; message her anytime to set quiet hours.
Hey Susan is an AI assistant, not a medical device, and not a substitute for your pediatrician, midwife, or emergency services. Prices in USD.
Privacy and safety
We don't sell your data. No ad trackers. Your conversations are private — your information is only ever used to run Susan for you, never sold, never shared with advertisers or data brokers.
Susan is powered by Google's Gemini model. Your data is processed under Google's terms — named on our privacy page. We don't use other LLM providers.
Free during private beta. When paid plans launch, cancel anytime — no phone call, no retention flow.
What Susan is — and isn't:
An AI assistant. Not a medical device. Not a substitute for your pediatrician, OB, midwife, or any licensed clinician. When something looks urgent, Susan says so clearly. Crisis routing (self-harm, emergency) is hard-coded — it bypasses the AI entirely. Susan shows you who to call; she doesn't place the call for you.
Get early access
In private beta now — join for free early access, and founding members lock in the best launch pricing.
FAQ
- Is Susan a real person?
- No. Susan is an AI — trained to feel warm and consistent, but software. When something needs a real human (a doctor, a therapist, 911), she'll tell you.
- Why a dedicated app?
- Because a dedicated app is the right home for an assistant that checks in on you around the clock. Native apps mean reliable background notifications (Susan can reach you at 3am even when your phone is locked), a widget on your home screen, and a one-tap log that never fights with your chat inbox. Everything you've told Susan — your baby's name, feeding history, the rash from Wednesday — lives in one place that's always there when you need it. You can also reach Susan by chat if you prefer; she's the same Susan either way.
- Does Susan grow with my family?
- Yes. Susan starts at the newborn months and grows with you — through solids, sleep regressions, toddler tantrums, school transitions, eventually the teenage years. The newborn assistant is live in the private beta now; the later stages roll out through 2026–2027.
- What language does Susan speak?
- English at launch. More languages are coming — we're adding them deliberately, with safety guidance reviewed for each language before we turn it on, rather than rushing them all out at once.
- What does it cost?
- It's free while we're in private beta — no card to join. At launch: $99/year (about $8/month) or $14.99/month for Always-On. Beta members lock in founding-member pricing.
- Is this medical advice?
- No. Susan notices patterns and tells you when to call your pediatrician. She does not diagnose.
- I'm expecting — can I sign up now?
- Yes — please do. The earlier you join, the more Susan can learn your rhythm and check in proactively through pregnancy. Sign up with your due date and she'll be ready when baby arrives.
- How does Susan remember things?
- Susan keeps the context of your recent conversations so you don't have to repeat yourself — your baby's name, how you're feeding, what you're worried about. Your data is yours: to have it deleted, email hi@heysusan.app and we'll remove it.
- What if I want to cancel?
- Nothing to cancel during the free private beta. When paid plans launch, you cancel anytime — no phone call, no retention flow, no hoops.