Soft Signal vs Moonbub
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Soft Signal
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SIMPLE SLEEP TRACKING FOR EXHAUSTED PARENTS You're tired. You can't remember when the last nap was. You don't know if your baby has had enough sleep today. Soft Signal fixes this. NO OVERWHELMING FEATURES Just the essentials: โข Track when baby falls asleep โข See wake windows (time awake) โข Know when next sleep is due โข View today's total sleep โข Spot patterns with trends NO SUBSCRIPTION REQUIRED Unlike other baby apps, we don't charge you monthly. Its Free Forever PERFECT FOR EXHAUSTED PARENTS Designed for 3 AM brain fog. Large buttons. Clear timers. No confusing charts. WAKE WINDOWS MADE EASY The app automatically tracks how long your baby has been awake and shows you their ideal wake window based on age. No more guessing when they need sleep. FEATURES YOU'LL ACTUALLY USE Track last 7 days of sleep Current wake window timer Today's total sleep Simple nap log One-tap sleep tracking Unlimited sleep history 30-day sleep trends Average sleep calculations Longest/shortest naps Bedtime consistency Export sleep data All future updates DESIGNED FOR TIRED PARENTS We built this because existing sleep trackers were too complicated. When you're running on 3 hours of sleep, you need simple. That's Soft Signal. NO ADS. NO SUBSCRIPTION. NO BS. Just simple, honest sleep tracking that respects your time and wallet. PRIVACY FIRST All your baby's sleep data stays on your device. We never see it, sell it, or share it. Your data is yours.
Moonbub
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Moonbub helps you track your baby's sleep and know exactly when they're ready for their next nap - using the same wake window science that premium apps charge for. The difference? Moonbub is free. Completely, permanently free. We built Moonbub because every parent of a newborn deserves good tools, not another subscription. No ads. No paywalls. No "premium" tier. Just a clean, thoughtful app that works. FEATURES - One-tap sleep timer for naps and nighttime - Smart wake window tracking with color-coded zones (Sweet Spot, Tired, Overtired) - Live countdown showing how long until baby's next nap - Manual sleep entry for sessions you forgot to track - Daily summary with total sleep, nap count, and longest stretch - Sleep history organized by day with quick patterns at a glance - Multiple baby profiles for siblings or twins - Push notifications when wake windows are closing - Secure account with email login and password reset WAKE WINDOWS Moonbub uses age-appropriate wake window ranges based on pediatric sleep research. As your baby grows, wake windows automatically adjust. The arc gauge shows you exactly where your baby is: Green = Too soon for a nap Yellow = Sweet spot - ideal time to start winding down Orange = Getting tired - put baby down soon Red = Overtired - baby may struggle to fall asleep WHY FREE? We believe sleep tracking shouldn't be a luxury. The first months with a baby are exhausting enough without worrying about subscription fees. Moonbub exists to support parents, not monetize them. Moonbub is maintained with care and updated twice yearly where required to keep things running smoothly and adapt to the latest platform changes. DESIGNED FOR TIRED EYES Dark theme by default. Large touch targets. Minimal steps. Because at 3 AM, you need an app that just works. Suitable for babies and toddlers aged 0-24 months. Questions or feedback? We'd love to hear from you: moonbub.app@gmail.com Privacy Policy: https://baby-sleep-app-fkftd5.abacusai.app/privacy Terms of Use: https://baby-sleep-app-fkftd5.abacusai.app/terms
Screenshots
Verdict
Soft Signal and Moonbub are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Soft Signal | Moonbub |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 15.1 | 15.1 |
| Further details โ not scored | ||
| Size | 26 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Matthew Kerr | Sebastian Robison |
In-app purchases
Soft Signal
No in-app purchases
Moonbub
No in-app purchases







