Comparison

View Tracker SpO2 & Pulse rate vs ZeroEntropy

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

Head to head
About

View Tracker SpO2 & Pulse rate

This app records SpO2 and pulse rate during sleep using a Bluetooth fingertip pulse oximeter. It generates reports for doctors to analyze sleep conditions and make diagnoses. The app does not provide medical advice.

Highlights
  • SpO2 and pulse rate recording
  • Bluetooth fingertip oximeter pairing
  • Sleep report generation
  • SpO2 and pulse trend analysis
  • Downloadable PDF reports
  • Unlimited report downloads via subscription
Features
Read full description

The ViewTracker App is a total solution to help you and the doctor analyze and improve sleep problem. User wear Leadtek’s bluetooth fingertip pulse oximeter, pairing with ViewTracker App. It will keep recording SpO2 and pulse rate while sleeping. After the testing has been completed, the sleeping report can be downloaded so the doctor can review the data and make a diagnosis and treatment recommendations. View Tracker does not provide medical advice, diagnosis or treatment. Always seek a doctor’s advice in addition to using this app and before making any medical decisions. Sleep oximetry report generated by Viewtracker APP, the report will present the analysis of sleeping condition with parameters including: Lowest / average SpO2 and pulse rate, ODI 3%, ODI 4% and CT 90% sleep SpO2 concentration. Through the report, your doctor can learn whether a patient has any sleeping condition via the SpO2 and pulse trend analysis data. We offer the 10 times $0.99 plan and monthly subscription plan with the below pricing $2.99/month or $6.99/6 months or $10.99/12 months for unlimited download Sleep SpO2 report. You may choose to share the raw data or report by any communication software or email to downloaded in PDF format. (Monthly subscription plan (1 month, 6 months, 12 months)will be charged to your iTunes Account once you confirm your purchase. Your iTunes account will be charged again when your subscription automatically renews at the end of your current subscription period unless auto-renew is turned off at least 24 hours prior to the end of the current period. You can manage or turn off auto-renew in your Apple ID Account Settings any time after purchase.)

About

ZeroEntropy

Features
Read full description

RETURN TO YOURSELF—ONE BREATH AT A TIME Give yourself 5–10 minutes a day to settle your breath, clear mental noise, and reconnect with how you want to feel, think, and live. A small, consistent daily practice can create meaningful change in how you focus, respond, and meet the rest of your day. Affirmations are often taught as words to repeat—but rarely as a complete practice. ZeroEntropy begins earlier, with guided quad breathing inspired by Himalayan traditions, helping you enter a steadier and more receptive state before you affirm, meditate, or reflect. ZeroEntropy brings the complete practice together—from nervous-system settling through breathwork to understanding the principles behind intention and manifestation, choosing the right affirmations and meditations, practising in your own voice, and building personalized playlists around your life goals. A COMPLETE PRACTICE, BUILT AROUND YOU Follow a Personal Path shaped around your focus, preferred practice, and the areas of life that matter most to you. UNDERSTAND HOW INNER CHANGE WORKS Explore guided Concepts about attention, belief, identity, coherence, intention, and manifestation—presented as a structured framework for mindset and self-reflection. AFFIRMATIONS FOR EVERY PART OF YOUR LIFE Choose from an extensive collection covering ambition, abundance, performance, relationships, creativity, inner growth, confidence, health, and more. MEDITATIONS FOR THE MOMENT YOU’RE IN Find practices for calm, focus, reflection, restoration, and sleep, including nature sounds, brainwave-inspired audio, and solfeggio frequencies. PRACTICE IN YOUR OWN VOICE Record your own affirmations, create multiple takes, and listen with background soundscapes. Your personal recordings remain on your device. BUILD PLAYLISTS AROUND YOUR LIFE GOALS Bring together selected affirmations, meditations, Concepts, and personal recordings into playlists designed around what you want to practise. SHAPE EVERY RECORDING—KEEP THE ORIGINAL Trim recordings, adjust voice levels, reduce noise, normalize volume, and add an ambient background while preserving your original recording. Save Favorites, search the complete catalog, and continue listening in the background where available. Some features require ZeroEntropy Premium. ZeroEntropy supports mindset, self-reflection, and general well-being. It is not medical, financial, or legal advice. SUBSCRIPTION TERMS ZeroEntropy Premium is available as monthly and yearly auto-renewable subscriptions. The localized price and any introductory offer available to you are shown before purchase. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription through your Apple Account settings. Privacy Policy: https://zeroentropy-app.pages.dev/privacy-zeroentropy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

View Tracker SpO2 & Pulse rate4 screens
ZeroEntropy4 screens

Verdict

The call

The clearest difference is update cadence: ZeroEntropy at fortnightly against View Tracker SpO2 & Pulse rate's every 2 months. View Tracker SpO2 & Pulse rate's advantage is iOS requirement (12.0 vs 15.1). 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. View Tracker SpO2 & Pulse rate sells 3 in-app purchases, starting at $2.99 per month and ZeroEntropy sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

View Tracker SpO2 & Pulse rate ships an update every 2 months, ZeroEntropy fortnightly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
View Tracker SpO2 & Pulse rate versus ZeroEntropy: the parameters behind the verdict, then further details
ParameterView Tracker SpO2 & Pulse rateZeroEntropy
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size34 MB70 MB
Age rating4+4+
DeveloperLeadtekRanjan Kumar

In-app purchases

3 purchases

View Tracker SpO2 & Pulse rate

Subscriptions3
  • 1Month unlimited report$2.991 Month
  • 6Months unlimited report$6.996 Months
  • 1Year unlimited report$10.991 Year
2 purchases

ZeroEntropy

Subscriptions2
  • ZeroEntropy Premium14 Days trial$12.991 Month
  • ZeroEntropy Premium14 Days trial$49.991 Year

Questions

Is View Tracker SpO2 & Pulse rate free?
View Tracker SpO2 & Pulse rate is free to download, with in-app purchases available.
Is ZeroEntropy free?
ZeroEntropy is free to download, with in-app purchases available.
Do View Tracker SpO2 & Pulse rate or ZeroEntropy have ads?
Neither View Tracker SpO2 & Pulse rate nor ZeroEntropy shows ads.
Which is updated more often, View Tracker SpO2 & Pulse rate or ZeroEntropy?
View Tracker SpO2 & Pulse rate ships an update every 2 months, and ZeroEntropy fortnightly. Most recently, View Tracker SpO2 & Pulse rate was updated on October 27, 2026 and ZeroEntropy on October 24, 2026.

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