Comparison

Simple Sleep Timer for Babies vs GreatDays

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

Head to head
About

Simple Sleep Timer for Babies

Features
Read full description

When you are caring for a baby, recording sleep should take one tap—not another complicated routine. Simple Sleep Timer for Babies is built for Apple Watch, so you can start or stop a sleep session right from your wrist, even when your hands are full. SEE WHAT MATTERS AT A GLANCE • Check whether your baby is asleep or awake and how long the current stretch has lasted • See total sleep today and review recent sleep and awake sessions • View a simple seven-day chart, daily average, and longest sleep stretch • Open a complete history and delete an incorrect session whenever needed RIGHT ON YOUR WATCH FACE Add Baby Sleep to supported Apple Watch complication slots or the Smart Stack. The current state and elapsed time stay easy to see without opening the app. ASK SIRI Use Siri to start sleep, mark your baby awake, or check the current sleep status. It is a quick, hands-free option during feeding, rocking, or a late-night wake-up. MADE FOR TIRED PARENTS Large controls, clear colors, Dynamic Type, and VoiceOver support keep the app easy to use across Apple Watch sizes and accessibility settings. The interface is available in English, Simplified Chinese, Traditional Chinese, French, German, Japanese, and Korean. PRIVATE BY DESIGN Your sleep history is stored locally on your Apple Watch. There is no account, no advertising, and no external server collecting your baby's routine. You can reset all stored data at any time from About. Simple Sleep Timer focuses on one job: helping you understand your baby's sleep without making your day more complicated.

About

GreatDays

This app allows you to add important life events directly to your Apple Watch. It calculates the remaining days until these events, with support for various complications to view information at a glance.

Highlights
  • Add important life days to Apple Watch
  • Calculate remaining days until events
  • Supports multiple watch complications
  • Independent Apple Watch app functionality
  • View event information at a glance
Features
Read full description

GreatDays is a fully functional independent Apple Watch App. You can add the important days of your life directly to your watch, and it will help you calculate the corresponding days. GreatDays supports almost all complication that you can lift your hand to see and touch.

Verdict

The call

The clearest difference is price: GreatDays at Free against Simple Sleep Timer for Babies's $4.99. GreatDays also leads on device support (4 vs 2) and iOS requirement (13.0 vs 18.0). On update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

GreatDays is free to download; Simple Sleep Timer for Babies costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Simple Sleep Timer for Babies ships an update every 6 months, GreatDays every 5 months. The most recent releases landed on October 25, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 5 level
Simple Sleep Timer for Babies versus GreatDays: the parameters behind the verdict, then further details
ParameterSimple Sleep Timer for BabiesGreatDays
Price$4.99Free — better
Positive reviews—100.0% of reviews
Update frequencyEvery 6 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.013.0 — better
Further details — not scored
Size2 MB8 MB
Age rating4+4+
DeveloperTalkabout Design LLC远平 张

In-app purchases

None

Simple Sleep Timer for Babies

No in-app purchases

None

GreatDays

No in-app purchases

Questions

Is Simple Sleep Timer for Babies free?
Simple Sleep Timer for Babies costs $4.99, with no in-app purchases.
Is GreatDays free?
GreatDays is free to download, with no in-app purchases.
Do Simple Sleep Timer for Babies or GreatDays have ads?
Neither Simple Sleep Timer for Babies nor GreatDays shows ads.
Which is updated more often, Simple Sleep Timer for Babies or GreatDays?
Simple Sleep Timer for Babies ships an update every 6 months, and GreatDays every 5 months. Most recently, Simple Sleep Timer for Babies was updated on October 25, 2026 and GreatDays on October 9, 2026.

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