Comparison

Sub 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

Sub

This app enhances your kitchen experience by guiding you through recipes from websites and a curated collection. It allows remote control and monitoring of Sub-Zero refrigeration, Cove dishwashing, and Wolf appliances, ensuring optimal performance and convenience.

Highlights
  • Guided cooking from online recipes
  • Chef-tested recipes optimized for Wolf appliances
  • Remote dishwasher control and monitoring
  • Refrigerator settings and alerts
  • Filter recipes by cooking mode
  • Bookmark and share recipes
Features
Read full description

Elevate your kitchen experience with the Sub-Zero Group Owner’s App. Connect your Wi-Fi-enabled appliances and enjoy greater control, personalized cooking, and now, integrated wine inventory management. • Build and manage your wine collection • Scan bottles to quickly add wines to your inventory • Track where each bottle is stored across locations • Organize your collection with filters, groups, and tags • View inventory history as wines are enjoyed over time • Enjoy a guided cooking experience with recipes tailored to your appliances • Set timers and view oven status directly from recipe steps • Monitor and control your appliances from anywhere • Receive notifications for appliance status, maintenance, and more The app also gives you powerful control over your Sub-Zero refrigeration and Cove dishwashing appliances. Start your dishwasher remotely, monitor cycles, and manage supplies Wine Inventory transforms a traditionally manual task into a simple, intuitive experience. Manage your collection, understand where your wines are stored, and stay connected to your kitchen in one place. Download now and get more from every Sub-Zero, Wolf, and Cove appliance.

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

Sub4 screens
Tempur® Sleeptracker4 screens

Verdict

The call

The clearest difference is review sentiment: Tempur® Sleeptracker at 37% against Sub's 15%. Tempur® Sleeptracker also leads on rating (4.7 vs 4.4) and ratings volume (32K vs 778). Sub's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (15.5 vs 17.5). On price, ads, in-app purchases and device support 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 4.4. That said, the two scores are not equally well evidenced: Tempur® Sleeptracker has 32K ratings behind it against 778, so its average is the more settled of the two. Written reviews point the same way: 15% of Sub's written reviews are positive against 37% of Tempur® Sleeptracker's.

UpkeepUpdate frequency

Sub ships an update every 5 weeks, Tempur® Sleeptracker every 3 months. The most recent releases landed on September 20, 2026 and September 25, 2026 respectively.

Scorecard6 real differences · 4 level
Sub versus Tempur® Sleeptracker: the parameters behind the verdict, then further details
ParameterSubTempur® Sleeptracker
PriceFreeFree
Rating4.4 (778 ratings)4.7 (32K ratings) — better
Positive reviews15.1% of reviews37.0% of reviews — better
Number of ratings77832K — better
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.5
Further details — not scored
Size69 MB98 MB
Age rating4+4+
DeveloperSub-Zero and WolfFullpower®

Customer experience

Sub

All ratings778 ratings
Positive85.1%
Neutral3.0%
Negative12.0%
Written reviews172 reviews
Positive15.1%
Neutral8.7%
Negative76.2%

Tempur® Sleeptracker

All ratings32,484 ratings
Positive93.8%
Neutral2.7%
Negative3.5%
Written reviews322 reviews
Positive37.0%
Neutral11.8%
Negative51.2%

User reviews

Sub

From 778 App Store ratings

What we love

  • 🚀 Responsive and intuitive app
  • 👍 Helpful notifications and alerts
  • 🔒 Secure connection to appliances

Room to improve

  • 🐛 Frequent connection issues and disconnects
  • 🔍 Lack of actual temperature monitoring
  • 🤔 Confusing setup and pairing process
  • 🔍 Missing key features like remote start

Tempur® Sleeptracker

From 32K App Store ratings

What we love

  • 🚀 Excellent sleep tracking and analysis
  • 👍 Detailed sleep reports and insights
  • 🤖 Useful AI-powered features
  • 🛋️ Seamless integration with adjustable base
  • 💤 Helps improve sleep quality

Room to improve

  • 🐛 Inaccurate sleep tracking and data
  • 🔌 Frequent WiFi disconnections
  • 🤯 Buggy and laggy app performance
  • 🤖 AI and sleep analysis not as advanced as claimed
  • 🔒 Privacy concerns with data collection

Bugs and requests

Sub

Reported bugs

4 issues
  • App crashes after recent updates
  • Unable to log in or register account
  • Appliances disappear from the app
  • Firmware update failures brick appliances

Requested features

3 requests
  • Add support for Celsius temperature units
  • Provide real-time temperature and energy consumption data
  • Integrate with smart home platforms like Apple HomeKit

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

Sub

No in-app purchases

None

Tempur® Sleeptracker

No in-app purchases

Questions

Is Sub free?
Sub 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, Sub or Tempur® Sleeptracker?
Tempur® Sleeptracker is rated higher. Sub averages 4.4 out of 5 from 778 ratings, while Tempur® Sleeptracker averages 4.7 from 32K ratings.
Do Sub or Tempur® Sleeptracker have ads?
Neither Sub nor Tempur® Sleeptracker shows ads.
Which is updated more often, Sub or Tempur® Sleeptracker?
Sub ships an update every 5 weeks, and Tempur® Sleeptracker every 3 months. Most recently, Sub was updated on September 20, 2026 and Tempur® Sleeptracker on September 25, 2026.

Other comparisons