A baby tracker for feeds, sleep and nappies, shared by both parents
In the first weeks the questions are small and constant: when did she last feed, which side, how long has she been awake. Syncry keeps that log for both of you, or for you alone, and turns it into a gentle guess about what comes next.
In short
- Feeds with side, start and end, bottles in ml, sleep with where it happened, and nappies with colour.
- Both parents log on their own phones and see each other’s entries as they happen.
- The forecast of the next feed, wake-up and sleep comes from your baby’s own last ten days. While there are few entries, the next sleep leans on what is typical for the age, and it is never a schedule.
- Growth is plotted on the WHO growth standards, with corrected age for babies born before 37 weeks.
What can you log?
Breastfeeds with the side you started and ended on, bottles with how much, and mixed feeds; sleep with when and where, from the cot to the car; nappies, wet or dirty, with the colour; weight, length and head size. A short handover card tells whoever wakes up what happened while they slept.
How does the forecast work?
It looks at your baby’s own gaps between feeds and sleeps over the last ten days, around the same time of day, with recent days counting more, and gives a likely time with a range that held about 7 times in 10. Tap the line and a sheet shows the past intervals as dots, what it is based on, and the range in plain words. When the rhythm is new or has changed, it says it is still learning instead of guessing.
Can both of us log at the same time?
Yes. The log is shared live: a feed one of you starts at 3 am is on the other’s phone at once, timer running. One exception: if one of you deletes an entry, the other sees it gone the next time the screen refreshes.
What about growth?
Each weight, length and head measurement is placed on the WHO Child Growth Standards from birth to five years, as a percentile and on a chart. For a baby born before 37 weeks you can see it by corrected age.
What it does not do
- The forecast is never a schedule and never medical advice: it is a guide from your own log.
- It does not forecast nappies.
- It does not decide whether your baby is feeding or growing well: that is for your midwife, health visitor or paediatrician.
Questions parents ask
Is the forecast a feeding schedule?
No. It only describes what your baby has been doing lately, so you can plan a shower or a nap. Feed your baby when they show they are hungry.
How long before the forecast appears?
It needs a few days of entries around the same times. Until then, or when the rhythm changes, it says it is still learning rather than showing a guess.
Does it work with twins?
Yes. Each child has their own log, and each forecast is drawn from that child’s entries only.
What does it cost?
One subscription for the whole family, Iris included: £4.99 a month or £49.99 a year. The first month is free, and you can cancel at any time.
Your baby’s rhythm, on both phones
Start with your baby’s birthday or your due date. From the first feed you log, the log is shared live, and the forecast learns your baby, not an average one.