Comparison

Window vs VitalFlow Oxygen Tracker Pro

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

Head to head
About

Window

This intermittent fasting timer helps you build healthy eating habits with real-time progress tracking and motivational animations. View your fasting status on the Lock Screen and Dynamic Island without opening the app. Track your history, streaks, and success rate with local data storage and no ads.

Highlights
  • One-tap fasting start
  • Real-time progress tracking
  • Dynamic Island & Live Activities integration
  • Preset and custom fasting durations
  • Fasting history and statistics
  • Local data storage
Features
Read full description

Window is a beautifully designed intermittent fasting timer that helps you build healthy eating habits effortlessly. 【CORE FEATURES】 • One-tap to start fasting with real-time progress tracking • Stunning progress ring animation showing completion percentage • Preset durations: 12/14/16/18/20/24 hours • Custom duration for flexible fasting plans 【DYNAMIC ISLAND & LIVE ACTIVITIES】 • Real-time fasting progress on Lock Screen and Dynamic Island • Check remaining time without opening the app • Beautiful countdown animations to keep you motivated 【HISTORY & STATISTICS】 • Complete fasting history records • Track total fasts, streak days, and average duration • Monitor your success rate and witness your progress 【PRIVACY FIRST】 • All data stored locally on your device • No personal information collected • No ads, no tracking 【ONE-TIME PURCHASE】 • No subscriptions, no hidden fees • Unlock all features with a single purchase • Support indie development Start your fasting journey today. Window is here to help you achieve a healthier lifestyle!

About

VitalFlow Oxygen Tracker Pro

Read full description

VitalFlow Oxygen Tracker Pro helps you monitor your blood oxygen level (SpO₂), heart rate, heart rate variability (HRV), and blood pressure—all in one convenient app. Measure SpO₂ and pulse using your phone camera or a connected device, and receive alerts when oxygen levels drop too low. Stay on top of your health with detailed history, interactive graphs, and advanced analytics, including stress assessment based on HRV (SDNN). Sync your results effortlessly with Apple Health and Apple Watch, and set flexible reminders to keep up regular checks. Export your reports as PDFs, complete with historical data and visual charts. Explore breathing exercises and informative articles on cardio health and oxygen management. The free version lets you record one SpO₂ and pulse measurement per day, with basic analytics and a 7-day history, while Premium unlocks unlimited measurements, full history, monthly trends, in-depth analytics, and guided anti-stress sessions. Disclaimer: This app is not a medical device. It is designed for informational use only and is not a replacement for professional medical advice, diagnosis, or treatment. If you have any concerns about your health or medical condition, always consult your doctor or a qualified healthcare provider. For urgent medical situations, contact your physician or emergency services right away. This application contains auto-renewable subscriptions and In-App Purchases. 1 week $4.99, 1 month $12.99, 1 year $39.99, Lifetime $59.99 Terms of Use Link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Link: https://docs.google.com/document/d/13Iu2KBuY6D0AAv6txLXdwDUsdetaoInqW5WyRbM-4G0/edit

Screenshots

Window4 screens
VitalFlow Oxygen Tracker Pro4 screens

Verdict

The call

The clearest difference is iOS requirement: VitalFlow Oxygen Tracker Pro at 14.0 against Window's 17.6. 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. Window sells 1 one-off in-app purchase and VitalFlow Oxygen Tracker Pro sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 9 level
Window versus VitalFlow Oxygen Tracker Pro: the parameters behind the verdict, then further details
ParameterWindowVitalFlow Oxygen Tracker Pro
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.614.0 — better
Further details — not scored
Size7 MB43 MB
Age rating12+4+
Developer发发 道Minneapolis Hotel Group LLC

In-app purchases

1 purchases

Window

One-time1
  • Window Pro$0.99
5 purchases

VitalFlow Oxygen Tracker Pro

Subscriptions4
  • Weekly$4.997 Days
  • Weekly-Trial3 Days trial$4.997 Days
  • Monthly$12.991 Month
Show 1 more
  • Yearly$39.991 Year
One-time1
  • Lifetime$59.99

Questions

Is Window free?
Window is free to download, with in-app purchases available.
Is VitalFlow Oxygen Tracker Pro free?
VitalFlow Oxygen Tracker Pro is free to download, with in-app purchases available.
Do Window or VitalFlow Oxygen Tracker Pro have ads?
Neither Window nor VitalFlow Oxygen Tracker Pro shows ads.

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