Comparison

SleepNote vs S

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

Head to head
About

SleepNote

This app monitors your sleep patterns and offers professional suggestions to improve sleep quality and build healthy habits. It also provides ambient light and music to help you fall asleep faster and a smart alarm to wake you at the optimal time for a refreshed feeling.

Highlights
  • Accurate sleep monitoring
  • Professional sleep improvement suggestions
  • Ambient light and music for sleep-aid
  • Smart alarm for optimal wake-up
  • Builds good sleep habits
Features
Read full description

SleepNote focuses on sleep monitoring and sleep-aid, we have these 3 main features for you to create better sleep: 1. Sleep Monitoring Accurate sleep monitoring (from our Sleep Monitoring series products) and professional suggestions to improve your sleep quality, and even to build up good sleep habit 2.Sleep-Aid Efficient ambient light (from our Sleep-Aid series products) and music enable you to fall asleep quickly, over 85% of the testing participants give us positive feedback 3.Smart Alarm Our alarm(from our productsοΌ‰ is smart enough to wake you up in the most suitable time in the morning, so that you could fulfill healthy sleep cycle and feel refreshed

About

S

Features
Read full description

The S-Matic 2.0 app enables a comfortable and customized setting of the S-Matic 2.0 mattress. The app on your smart phone or tablet is simply connected to the mattress via Bluetooth. Once connected you can either choose from predefined settings or adjust the firmness level yourself whereafter this setting can be saved as your favorite. S-Matic 2.0 will support you with an optimal sleep experience.

Screenshots

SleepNote4 screens
S4 screens

Verdict

The call

The clearest difference is update cadence: SleepNote at every 2 months against S's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SleepNote ships an update every 2 months, S every 8 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard1 real difference Β· 7 level
SleepNote versus S: the parameters behind the verdict, then further details
ParameterSleepNoteS
PriceFreeFree
Positive reviews0.0% of reviewsβ€”
Update frequencyEvery 2 months β€” betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 β€” better13.0
Further details β€” not scored
Size36 MB14 MB
Age rating4+4+
DeveloperShenzhen Medica Technology Development Co., Ltd.Starsprings AB

In-app purchases

None

SleepNote

No in-app purchases

None

S

No in-app purchases

Questions

Is SleepNote free?
SleepNote is free to download, with no in-app purchases.
Is S free?
S is free to download, with no in-app purchases.
Do SleepNote or S have ads?
Neither SleepNote nor S shows ads.
Which is updated more often, SleepNote or S?
SleepNote ships an update every 2 months, and S every 8 months. Most recently, SleepNote was updated on October 24, 2026 and S on October 20, 2026.

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