Comparison

SpO2 Watcher vs SetReady

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

Head to head
About

SpO2 Watcher

This utility app restores blood oxygen level insights to your Apple Watch. It retrieves data from HealthKit and displays it on your watch face and dashboard, offering real-time readings and historical trends. Designed for privacy, your data remains on your device.

Highlights
  • Re-enable watch visibility for SpO2
  • Real-time blood oxygen dashboards
  • Advanced watch complications
  • 24-hour interactive history graph
  • Automatic background sync
  • 30-day trend analysis
  • On-device data storage
Features
Read full description

RESTORE YOUR SPOβ‚‚ INSIGHTS ON APPLE WATCH SPOβ‚‚ Watcher is a specialized utility designed for users who want full visibility of their blood oxygen data directly on their wrist. While some devices may not display these readings natively, your sensor is still active and securely recording data to the Apple Health app. SPOβ‚‚ Watcher acts as the essential bridge, retrieving that data from HealthKit and restoring it to your watch face and dashboard. β€” KEY FEATURES β€” ● RE-ENABLE WATCH VISIBILITY If you lack a native on-device option to view your blood oxygen levels, our app provides the solution. It pulls the SpOβ‚‚ data already stored in your HealthKit database and displays it instantly on your Apple Watch. ● REAL-TIME DASHBOARDS View your latest blood oxygen percentage at a glance with high-contrast, easy-to-read designs optimized for clarity on the go. ● ADVANCED WATCH COMPLICATIONS Personalize your watch face with our specialized "Four Corner" layout. See your current SpOβ‚‚ value, exact time of measurement, and a smooth historical trend graph without needing to open your iPhone. ● 24-HOUR INTERACTIVE GRAPH Visualize your daily fluctuations with a detailed 24-hour history line chart, helping you identify patterns in your respiratory wellness throughout your routine. ● AUTOMATIC BACKGROUND SYNC Using intelligent observer queries, the app detects new scans as soon as they reach your Health app, ensuring your watch complications stay updated automatically. ● 30-DAY TRENDS Dive deep into your history with comprehensive daily averages, highs, and lows to help you track your long-term wellness journey. β€” PRIVACY & SECURITY: YOUR DATA STAYS YOURS β€” We believe your health data is your most sensitive information. SPOβ‚‚ Watcher is built with a Privacy-First architecture: ● ON-DEVICE STORAGE: All your blood oxygen data is stored locally on your iPhone and Apple Watch. ● NO CLOUD BACKENDS: Your data stays in the secure Apple Health database on your device. We do not have a backend; your data is never "in flight" to a third-party server. ● END-TO-END ENCRYPTION: Your health information is encrypted whenever your device is locked. ● NO DATA SELLING: We strictly follow Apple’s developer guidelines. Your health data is never shared with advertisers or data brokers. β€” WE DO NOT USE YOUR DATA β€” Your data belongs to you. SPOβ‚‚ Watcher does not collect, store, or transmit your health information to any external location. The app simply requests permission to read "Oxygen Saturation" from the Apple Health app for the sole purpose of displaying it locally on your device. We have no access to your data, and we do not track your usage. β€” IMPORTANT DISCLAIMER β€” This app is intended for fitness and wellness purposes only and is not a medical device. It is not intended for the diagnosis of disease or other conditions, or in the cure, mitigation, treatment, or prevention of disease. Always seek the advice of a physician or other qualified health provider with any questions regarding a medical condition. β€” TECHNICAL REQUIREMENTS β€” ● Requires Apple Watch Series 6 or later (excluding SE) with Blood Oxygen sensor. ● Requires authorization to access Oxygen Saturation data in the Apple Health app.

About

SetReady

Features
Read full description

Know exactly when to start your next set. SetReady is the gym rest timer for weights that turns your Apple Watch into a recovery coach: it tracks your heart rate between sets and tells you when you are ready. Requires Apple Watch. Stop guessing your rest. Finish a set, tap it on your Watch, and SetReady tracks elapsed rest, remaining rest, the peak heart rate from your last set and how many beats you recover. A haptic tells you when it is time to get back under the bar. BUILT FOR THE GYM β€’ Rest timer between sets on Apple Watch, with haptic cues β€’ Live heart-rate recovery: peak, beats recovered and target β€’ Profiles for strength, hypertrophy, very heavy work or conditioning β€’ Big iPhone controls: next set, pause and end β€’ Keep your music or podcast playing while you lift YOUR PROGRESS AT A GLANCE β€’ New home screen with your week, streak, last workout and rest profile β€’ Monthly calendar with time, set and calorie rings β€’ Training load charts and recovery trends β€’ Every session in detail: timeline, heart-rate zones and set-by-set rests β€’ Import workouts from Health, including runs, walks and rides with their route β€’ Shareable performance report OPTIMIZED FOR IPHONE DUO On the inner display, home, live workout, history and summary flow into two columns, and nothing is split by the fold. SETREADY PRO Unlock unlimited history, recovery and load trends, advanced rest window tuning, workout automation and shareable reports. Without Pro you can still train with Apple Watch, use the core rest timer and see your recent history. SetReady uses HealthKit, with your permission, to read heart rate and save workouts started on Apple Watch. SetReady provides workout timing guidance only and is not medical advice. Privacy Policy: https://litoarias.github.io/landing-setready/privacy/index.html Terms of Use: https://litoarias.github.io/landing-setready/terms/index.html

Screenshots

SpO2 Watcher4 screens
SetReady4 screens

Verdict

The call

The clearest difference is price: SetReady at Free against SpO2 Watcher's $0.99. SetReady also leads on update cadence (every 3 days vs every 2 months). SpO2 Watcher's advantage is in-app purchases (none vs 3) and chart position (#46 vs unranked). On ads, device support and iOS requirement 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

SetReady is free to download; SpO2 Watcher costs $0.99 up front. SetReady sells 3 in-app purchases, starting at $2.99 per month. SpO2 Watcher asks for nothing beyond the download.

UpkeepUpdate frequency

SpO2 Watcher ships an update every 2 months, SetReady every 3 days. Both last shipped on November 5, 2026.

Scorecard4 real differences Β· 5 level
SpO2 Watcher versus SetReady: the parameters behind the verdict, then further details
ParameterSpO2 WatcherSetReady
Price$0.99Free β€” better
Positive reviews25.0% of reviewsβ€”
Update frequencyEvery 2 monthsEvery 3 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
MonetizationPaidβ€”
Best chart rank#46 β€” betterβ€”
DevicesiPhone, Apple WatchiPhone, Apple Watch
Requires iOS18 β€” better18.6
Further details β€” not scored
Size8 MB27 MB
Age rating4++12
DeveloperESCAPADE GLOBAL PRIVATE LIMITEDLito arias

In-app purchases

None

SpO2 Watcher

No in-app purchases

3 purchases

SetReady

Subscriptions2
  • SetReady Pro Monthly3 Days trial$2.991 Month
  • SetReady Pro Yearly7 Days trial$24.991 Year
One-time1
  • SetReady Pro Lifetime$49.99

Questions

Is SpO2 Watcher free?
SpO2 Watcher costs $0.99, with no in-app purchases.
Is SetReady free?
SetReady is free to download, with in-app purchases available.
Do SpO2 Watcher or SetReady have ads?
Neither SpO2 Watcher nor SetReady shows ads.
Which is updated more often, SpO2 Watcher or SetReady?
SpO2 Watcher ships an update every 2 months, and SetReady every 3 days. Most recently, SpO2 Watcher was updated on November 5, 2026 and SetReady on November 5, 2026.

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