ADI Study Watch vs iSelfie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ADI Study Watch
Read full descriptionHide full description
ADI Study Watch is an app to evaluate the reference watch from Analog Devices to monitor vital signs such as PPG, ECG, Temperature, EDA measurements. The users can stream, plot the raw data from sensors real time, log the selected data in the NAND flash of the watch device for later analysis, change configuration and settings for each VSM application.
iSelfie
Read full descriptionHide full description
Explore your heart wellness using your smartphone. iSelfie ™ is an AI-based wellness application that uses your smartphone’s camera to capture a short facial video. The iSelfie AI platform analyzes subtle changes in light reflected from your face that are associated with blood flow and uses this information to estimate wellness indicators. In just 30 seconds, iSelfie helps you better understand your general wellness, follow changes over time, and see how your daily habits may affect your results. No additional wearable or external accessory is required. A single iSelfie video scan provides the following wellness indicators: Cardiovascular Wellness • Heart Age • Resting Heart Rate • Heart Rate Variability • Energy • Stress Respiratory Wellness • Respiratory Rate The computational models used by iSelfie were developed and evaluated using reference data collected with clinical-grade devices of the type used in clinical and research settings. The methodology and performance of the underlying technology have also been evaluated in published research, including PMID: 41402088 and OVID. - Additional information about iSelfie’s methodology, validation, and accuracy is available at https://iselfieprod.blob.core.windows.net/iselfie-prod-public/fact-sheets/accuracy-table-en.pdf During each scan, the smartphone camera captures a short facial video. iSelfie’s AI models and algorithms analyze visual information within the video and generates your personal wellness results. The camera captures the video; it does not independently calculate or interpret the wellness indicators. Results appear immediately after each scan, along with explanations of what the indicators mean. Daily, weekly, monthly, and yearly trend graphs help you follow changes, recognize patterns, and understand how your habits may affect your general wellness. You can also choose to share your results with family members or others who support your wellness goals. iSelfie is intended for general fitness and wellness purposes only. It is not a medical device and is not intended to diagnose, treat, mitigate, cure, or prevent any disease or medical condition. Results should not be used to make medical decisions or as a substitute for professional medical advice, diagnosis, or treatment. If you have concerns about your health, consult a qualified healthcare professional. In an emergency, contact your local emergency services. See for yourself. Take your first 30-second iSelfie. Privacy Policy: https://iselfie.ai/privacy-policy Terms of Use: https://iselfie.ai/terms
Screenshots
Verdict
The clearest difference is in-app purchases: ADI Study Watch at none against iSelfie's 2. ADI Study Watch also leads on ads (none vs shown) and iOS requirement (12.1 vs 15.1). iSelfie's advantage is update cadence (weekly vs every 5 months). On price 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
Both are free to download. iSelfie sells 2 in-app purchases, starting at $19.99 per month. ADI Study Watch asks for nothing beyond the download.
ADI Study Watch ships an update every 5 months, iSelfie weekly. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.
| Parameter | ADI Study Watch | iSelfie |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 15.1 |
| Further details — not scored | ||
| Size | 42 MB | 250 MB |
| Age rating | 4+ | 12+ |
| Developer | Analog Devices | AiZtech Ltd |
In-app purchases
ADI Study Watch
No in-app purchases
iSelfie
- Heart Health Monthly$19.991 Month
- Heart Health Annual$179.991 Year









