Comparison

Petites Nuits vs Let's Build Countdowns

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Petites Nuits

Track your child's sleep patterns with a private, offline journal. Record nights and naps, note wakeups, feeds, and observations. Generate shareable PDF reports of sleep data.

Highlights
  • Record nights and naps
  • Note wakeups, feeds, and observations
  • Edit sleep entries
  • View diary by day
  • Generate A4 PDF reports
  • Offline functionality
Features
Read full description

For parents losing track of when their baby slept, Petites Nuits turns logged nights, naps and wakeups into a sleep diary to look back on. When did they fall asleep? How often did they wake? Keep the times and your notes together so you don't have to remember everything. The grid separates nights from naps, from noon to noon. Log sleep as it happens - Start the timer at bedtime or naptime. Pause and resume it; your session stays available after you close the app. - Add a past sleep period with its start and end dates and times. - Record wakeups and their duration, feeds, mood on waking and your observations. - Find and edit several sleep periods on the same day. From sleep log to diary Browse the calendar, history and sleep grid. Night statistics stay separate from naps. Recorded sleep excludes wakeups without counting overlapping periods twice, including across clock changes. A day with entries may still be incomplete: the figures reflect only what you log. Prepare an A4 diary for 7, 14 or 28 days: a 24-hour grid, summary, recorded periods and dated notes. Compare it with the previous period of the same length. Your child's first name and date of birth are optional. On your iPhone, the Home Screen and Lock Screen widget shows sleep duration excluding pauses, wakeups and a night in progress. Tap it to open that night. No account, ads or data collection. Your journal stays on your iPhone and the PDF is generated on your device, offline. Sharing a PDF sends the observations and profile you entered to the recipient you choose. Petites Nuits does not detect sleep automatically, predict naps or provide sleep-training programs. It does not offer a diagnosis or medical advice. Recording, timer, calendar, history, sleep grid, statistics and the full PDF preview are available without a purchase, including every page and period. One-time Diary purchase: share, print and save the PDF. No subscription or trial. Existing access is preserved. Restore is available on the purchase screen and in Support.

About

Let's Build Countdowns

Features
Read full description

Let’s Build Countdowns helps you look forward to the Moments that matter. Add birthdays, holidays, school trips, family visits, Christmas, weekends away, or anything else you are excited about. Then keep your next Moment close with bright, friendly widgets for your Home Screen and Lock Screen. Built around anticipation, Let’s Build Countdowns makes it simple to see what is coming next without turning it into a calendar, planner, or complicated productivity tool. Features: β€’ Add your own Moments in seconds β€’ Start quickly with family-friendly Moment templates β€’ See your Next Up Moment at a glance β€’ Choose icons and colours for each Moment β€’ Show selected Moments in widgets β€’ Home Screen widgets in multiple sizes β€’ Lock Screen widgets β€’ Local-first design with no accounts required Whether it is a birthday, a holiday, a school break, a family visit, or a special day you cannot wait for, Let’s Build Countdowns helps make the waiting part feel fun.

Screenshots

Petites Nuits4 screens
Let's Build Countdowns4 screens

Verdict

The call

Petites Nuits and Let's Build Countdowns are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Petites Nuits sells 4 one-off in-app purchases and Let's Build Countdowns sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Petites Nuits ships an update every 9 days, Let's Build Countdowns every 8 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

ScorecardNo meaningful differences
Petites Nuits versus Let's Build Countdowns: the parameters behind the verdict, then further details
ParameterPetites NuitsLet's Build Countdowns
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 9 daysEvery 8 days β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhoneiPhone, iPad β€” better
Requires iOS17.017.0
Further details β€” not scored
Size3 MB2 MB
Age rating4+4+
DeveloperBenjamin DupinBrian Leary

In-app purchases

4 purchases

Petites Nuits

One-time4
  • Coffee$0.99
  • Thanks$2.99
  • Sleep Diary PDF$3.99
Show 1 more
  • Support development$4.99
1 purchases

Let's Build Countdowns

One-time1
  • Countdown Plus$2.99

Questions

Is Petites Nuits free?
Petites Nuits is free to download, with in-app purchases available.
Is Let's Build Countdowns free?
Let's Build Countdowns is free to download, with in-app purchases available.
Do Petites Nuits or Let's Build Countdowns have ads?
Neither Petites Nuits nor Let's Build Countdowns shows ads.
Which is updated more often, Petites Nuits or Let's Build Countdowns?
Petites Nuits ships an update every 9 days, and Let's Build Countdowns every 8 days. Most recently, Petites Nuits was updated on October 28, 2026 and Let's Build Countdowns on October 24, 2026.

Other comparisons