Comparison

King Koil Smart life vs Tempur® Sleeptracker

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

Head to head
About

King Koil Smart life

This app controls a smart mattress system that adapts to your body and movement. It offers a massaging relaxation mode, dual firmness controls, and tracks your sleep quality. Wake up gently with its smart alarm feature.

Highlights
  • Body sensing technology
  • Massaging relaxation mode
  • Dual firmness controls
  • Sleep quality data
  • Smart alarm
Features
Read full description

King Koil has developed a sleep system that adjusts to your unique body and continuously adapts to the way you move. The SmartLife mattress features patented body sensing technology, a massaging relaxation mode, and dual firmness controls. Our intuitive app makes it easy to operate all of these features. The SmartLife app also provides data on the quality of sleep you’re getting and a smart alarm to gently ease you out of bed in the morning. Experience the revolution of sleep today with SmartLife, and enjoy a better tomorrow.

About

Tempur® Sleeptracker

This app analyzes your sleep patterns without requiring you to wear anything. It provides detailed sleep graphs, metrics like heart rate and respiration, and personalized AI-driven tips to help you improve your sleep quality. Wake up refreshed with its smart alarm feature.

Highlights
  • AI Sleep Coach with personalized tips
  • Respiration and heart rate monitoring
  • Sleep cycle alarm
  • Automatic sleep monitoring
  • Detailed sleep graphs and metrics
  • Apple Health integration
Read full description

** THIS APP WILL NOT FUNCTION WITHOUT HARDWARE. This is the companion app for 2023 & newer Tempur® Sleeptracker-AI® Smart Bases. ONE OF THESE DEVICES IS REQUIRED TO USE THIS APP. ** POWERED BY SLEEPTRACKER-AI®: BETTER SLEEP Learn about your sleep - and improve your sleep - with nothing to wear or charge! This is the companion app for the Tempur® Sleeptracker-AI® Monitor which makes your bed a smart bed. The Sleeptracker-AI® system is the first cloud-based, non-invasive IoT sleep optimization solution powered by artificial intelligence (AI) and integrated into the smart home. The app provides detailed daily sleep graphs and sleep metrics derived from accurately and continuously monitoring the sleeper’s respiration rate, heart rate, and movements throughout the night. Easy-to-understand sleep graphs visually distinguish between periods when you were in REM sleep, light sleep, deep sleep, or awake. The AI Sleep Coach delivers personalized tips and insights to help you improve your sleep every night. AI SLEEP COACH The AI Sleep Coach, powered by the Sleeptracker-AI® Artificial Intelligence Engine, provides effective, easy-to-implement, personal sleep tips based on a comprehensive analysis of individual sleep patterns. RESPIRATION AND HEART RATE MONITORING The Sleeptracker-AI® system monitors both respiration and heart rate accurately through the night for deeper sleep analysis, with your data displayed as easy to read charts in the app. SLEEP CYCLE ALARM Optionally select white noise that gently fades away after you've fallen asleep, then set a sleep cycle alarm that will help you Wake Up at the Optimal Time™ in your sleep cycle so you wake up refreshed and more energized. AUTOMATIC SLEEP MONITORING If you choose to record your sleep automatically, there’s nothing to do and nothing to wear. Optionally receive a notification in the morning when your sleep results are available and a daily email with your sleep summary and AI Coach insights. APPLE HEALTH Share your Sleeptracker-AI® sleep data to the Apple Health app. The Sleeptracker-AI® system reports the following sleep-related statistics each night: - REM sleep, light sleep, deep sleep, awake time - Time at which you fell asleep and woke up - Number of times awoken during the night - Continuous respiration rate - Continuous heart rate - Sleep quality metric (scale of 0-100) - Sleep efficiency (time spent in bed vs. total time asleep) - Time it took you to fall asleep Terms of Use: https://sleeptracker.com/static/doc?id=32&ref=sleeptracker-eula Privacy Policy: https://portal.tsi.sleeptracker.com/webview/privacyNotice

Screenshots

King Koil Smart life4 screens
Tempur® Sleeptracker4 screens

Verdict

The call

The clearest difference is rating: Tempur® Sleeptracker at 4.7 against King Koil Smart life's 2.0. Tempur® Sleeptracker also leads on review sentiment (37% vs 9%) and update cadence (every 3 months vs every 18 months). King Koil Smart life's advantage is iOS requirement (12.0 vs 17.5). On price, ads, in-app purchases and monetization model 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Tempur® Sleeptracker holds the better App Store score, 4.7 against 2.0. That said, the two scores are not equally well evidenced: Tempur® Sleeptracker has 35K ratings behind it against 64, so its average is the more settled of the two. Written reviews point the same way: 9% of King Koil Smart life's written reviews are positive against 37% of Tempur® Sleeptracker's.

UpkeepUpdate frequency

King Koil Smart life ships an update every 18 months, Tempur® Sleeptracker every 3 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
King Koil Smart life versus Tempur® Sleeptracker: the parameters behind the verdict, then further details
ParameterKing Koil Smart lifeTempur® Sleeptracker
PriceFreeFree
Rating2.0 (64 ratings)4.7 (35K ratings) — better
Positive reviews9.4% of reviews37.1% of reviews — better
Number of ratings6435K — better
Update frequencyEvery 18 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.5
Further details — not scored
Size83 MB98 MB
Age rating4+4+
DeveloperiOBED, Inc.Fullpower®

Customer experience

King Koil Smart life

All ratings59 ratings
Positive18.6%
Neutral6.8%
Negative74.6%
Written reviews32 reviews
Positive9.4%
Neutral3.1%
Negative87.5%

Tempur® Sleeptracker

All ratings32,484 ratings
Positive93.8%
Neutral2.7%
Negative3.5%
Written reviews350 reviews
Positive37.1%
Neutral11.4%
Negative51.4%

Bugs and requests

King Koil Smart life

Not enough reviews yet to summarise bugs or requests.

Tempur® Sleeptracker

Reported bugs

5 issues
  • Sleep recording not stopping when getting out of bed
  • Firmware update issues and connection problems
  • Remote control function lags and freezes
  • Sleep cycle alarm not working as expected
  • Inconsistent data reporting and missing sleep entries

Requested features

5 requests
  • Local API for sensors and control
  • Customizable wave forms and relaxation modes
  • Apple Watch integration for remote control
  • Improved multi-sleeper detection and tracking
  • Better accessibility and usability for vision-impaired users

In-app purchases

None

King Koil Smart life

No in-app purchases

None

Tempur® Sleeptracker

No in-app purchases

Questions

Is King Koil Smart life free?
King Koil Smart life is free to download, with no in-app purchases.
Is Tempur® Sleeptracker free?
Tempur® Sleeptracker is free to download, with no in-app purchases.
Which has better reviews, King Koil Smart life or Tempur® Sleeptracker?
Tempur® Sleeptracker is rated higher. King Koil Smart life averages 2.0 out of 5 from 64 ratings, while Tempur® Sleeptracker averages 4.7 from 35K ratings.
Do King Koil Smart life or Tempur® Sleeptracker have ads?
Neither King Koil Smart life nor Tempur® Sleeptracker shows ads.
Which is updated more often, King Koil Smart life or Tempur® Sleeptracker?
King Koil Smart life ships an update every 18 months, and Tempur® Sleeptracker every 3 months. Most recently, King Koil Smart life was updated on October 25, 2026 and Tempur® Sleeptracker on October 27, 2026.

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