TandemBaby Tracker vs Moonlet Nap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TandemBaby Tracker
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Every feed, nap and first remembered. Calm to log, beautiful to look back on. Built for the moments, not the data. TandemBaby is a calm, private baby diary for the first 1000 days. Log feeds, sleep, diapers and medicine in two taps. Come back when the moments matter. Your first 60 days of Premium are on us. No card, nothing to cancel. After that, logging and the Orbit stay free forever. THE ORBIT A 24-hour ring on your home screen showing your baby's whole day at once. Naps paint the ring, feeds, diapers and doses sit on it as small badges, and a glowing dot keeps time. Swipe to look back at yesterday. Once you see it, lists feel obsolete. PARTNER SYNC Parenting in rhythm. Real-time sync between two caregivers. Sign in with Apple, share a 6-character code, paired in 30 seconds. When your partner logs a feed, you see it in seconds. Works offline, syncs when reconnected. APPLE WATCH Log feeds, sleep and diapers from your wrist. Active timers shown on the watch face. WIDGETS AND LIVE ACTIVITIES Wake window, last feed and sleep timer right on your Lock Screen and Home Screen. Live Activities and the Dynamic Island show running timers without opening the app. WHISPER MODE A deep navy night theme that switches on by itself between 10pm and 6am, or whenever you choose. Logs in one tap. The screen stays dim. Your partner can sleep. ONE TAP. TWO TAPS. DONE. - Tap Feed, pick a side, the timer starts. The tile shows which side is next. - Press and hold Feed to repeat your last feed. - Tap Sleep to start a nap, tap again to end it. - Wet, poop or both, logged instantly. WHAT YOU CAN TRACK - Feeds: breastfeeding (left, right, both), bottle (breast milk, formula, mixed), solids - Sleep: naps, night sleep, wake windows - Diapers: wet, dirty, both. Optional poop color reference based on pediatric guidelines. - Medicine: doses and vitamins - Growth: weight, length, head circumference - Milestones: 181 evidence-based firsts across 8 categories, with photos and notes THIS WEEK Plain-language developmental context based on CDC and WHO guidelines. What is likely happening. What you might notice. What you might try. No fearmongering. No pseudoscience. MONTHLY WRAPPED At the end of every month, a short story of everything you did together. Keep it or share it. WHO GROWTH CHARTS Real percentile tracking against World Health Organization standards. Pediatrician-ready PDF report in three formats: Full Report, Well Visit or Growth Only. MEMORY WALL A gallery of milestone photos and moments. Your child's first months as a story you can return to. GIVE A MONTH, GET A MONTH Share your friend code. When a friend joins, you both get a free month of Premium. IN YOUR LANGUAGE English, German, French and Spanish, with numbers and dates in your region's format. FREE AND PREMIUM Free forever: logging feeds, sleep, diapers and medicine, the full Orbit, Whisper Mode, widgets, the Apple Watch app, data export, twins and the last 7 days of history and stats. Premium adds full history, monthly and yearly stats, WHO growth charts, milestone tracking and photos, the full Memory Wall, Monthly Wrapped, Partner Sync, PDF reports, notification personalities and three or more babies. Premium is $6.99 per month or $49.99 per year. Cancel anytime in Settings. Subscriptions auto-renew unless turned off at least 24 hours before the end of the period. Manage in your Apple ID settings. PRIVACY TandemBaby uses Sign in with Apple only. We do not ask for your email or phone number. We do not sell or share your data. Ever. Zero third-party tracking SDKs; anonymous usage counts help us make the app better. All sync data is hosted in Frankfurt, Germany, on EU infrastructure. Read our Privacy Policy at tandembaby.com/privacy. This app is for tracking and recordkeeping only. Always consult your pediatrician for medical questions and decisions. The data fades. The moments stay. Terms of Use: https://tandembaby.com/terms/
Moonlet Nap
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Moonlet Nap is a simple, caring tracker for parents of little ones. Log sleep, feedings, and diaper changes in a couple of taps — and the app will show you the full picture of the day and help you understand your baby's routine. THE WHOLE DAY ON ONE CLOCK FACE A unique 24-hour clock shows all sleep for the day at a glance: night sleep, daytime naps, and awake time. Switch between "24 hours", "Night", and "Day" views. SLEEP • Mark falling asleep with one tap — the timer tracks the duration for you • Sleep started in the evening is automatically marked as night sleep (night hours are adjustable) • Log past sleep retroactively — the app suggests a free time slot • Record sleep quality and how your baby fell asleep FEEDINGS • Breast: a timer, side selection, and a hint on which side to start next time • Bottle: volume in milliliters • Solids: what your baby ate and when DIAPERS • Quick diaper change logging with type INSIGHTS • Average daily sleep and how it compares to the previous period • Night vs. day sleep balance • Sleep-by-day chart and daily rhythm • Periods: week, two weeks, month HISTORY • All events in one feed with filters: sleep, food, diapers • Daily summaries: total sleep, number of feedings LIVE ACTIVITY • While your baby sleeps, the sleep timer stays on the Lock Screen and in the Dynamic Island — no need to open the app MULTIPLE CHILDREN • Separate profiles with a photo and a color theme for each child PRIVACY • All data is stored only on your device • No sign-up, no ads, no data shared with third parties Made by parents, for parents. Sweet dreams to you and your little one!
Screenshots
Verdict
The clearest difference is in-app purchases: Moonlet Nap at none against TandemBaby Tracker's 2. TandemBaby Tracker's advantage is update cadence (daily vs every 2 days). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. TandemBaby Tracker sells 2 in-app purchases, starting at $6.99 per month. Moonlet Nap asks for nothing beyond the download.
TandemBaby Tracker ships an update daily, Moonlet Nap every 2 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | TandemBaby Tracker | Moonlet Nap |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 2 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 20 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | MINIFIT SIA | Nikolay Babich |
In-app purchases
TandemBaby Tracker
- TandemBaby Premium7 Days trial$6.991 Month
- TandemBaby Premium$49.991 Year
Moonlet Nap
No in-app purchases
Questions
Is TandemBaby Tracker free?
Is Moonlet Nap free?
Do TandemBaby Tracker or Moonlet Nap have ads?
Which is updated more often, TandemBaby Tracker or Moonlet Nap?
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