Comparison

Opus Wellness vs StressQ

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

Head to head
About

Opus Wellness

Features
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Every morning. 10 seconds. Three answers. What mode am I in. Why. What to do about it. Just your iPhone. No ring. No band. No wearable. β€” YOUR FACE AFTER LAST NIGHT Open your camera. 10 seconds. OPUS scans your skin across five layers β€” hydration, smoothness, tone evenness, radiance, and pore clarity β€” and scores each one. But the number isn't the point. The connection is. "After 5.5 hours of sleep, your skin score dropped 12 points." "Three days above 2L of water β€” your skin is responding." "HRV up, skin down. Something's off." Your face changes every morning. OPUS reads why. β€” AI THAT READS YOU β€” NOT A CATEGORY Every morning, one sentence no one else gets. Not a template. Not a horoscope. Your numbers, read by AI. "5.8 hours of sleep β€” your skin will show it by noon." "HRV dropped after Wednesday's alcohol. Recovery: 2 days." "Three weeks of data. You sleep worse on Sundays. Every single one." "3 coffees yesterday. Sleep took the hit. Skin followed." It doesn't motivate. It doesn't coach. It just says what it sees. β€” BETTER WITH APPLE WATCH OPUS works with just your iPhone. With Apple Watch, it gets sharper β€” HRV, sleep stages, SpO2, resting heart rate, all pulled automatically. More data in. Smarter insight out. No Watch? No problem. OPUS still reads your skin, sleep, activity, and stress. Own one? OPUS becomes the intelligence layer your Watch never had. β€” YOUR BASELINE Every body is different. OPUS learns your normal in 14 days, then flags what shifts. No population averages. No generic benchmarks. Just you. 22 metric pairs. Correlations only your data reveals. Sleep ↔ Skin. HRV ↔ Stress. Activity ↔ Recovery. A personal map of how your body actually connects. β€” DAILY MODE Restore β€” Your body needs recovery. Take it easy. Steady β€” A balanced day. Stay in your rhythm. Thrive β€” Your peak day. That thing you've been postponing? Today. β€” KNOW TOMORROW. TODAY. OPUS predicts your next-day score based on your patterns. Not a guess β€” a projection from your own data, updated every morning. Prepare before your body even gets there. β€” PRO β€” FIRST 14 DAYS FREE Your daily mode and score are always free. For those who want the full picture: Β· AI-powered daily insight that learns you better every day. Β· Full correlation map between skin, sleep, and stress. Β· 30-day body trend graph β€” watch yourself change. Β· Next-day prediction β€” know tomorrow before it arrives. β€” Privacy first. Health data stays on your iPhone. Skin photos are encrypted in transit and deleted after analysis β€” never stored, never shared. Available in 7 languages: English Β· EspaΓ±ol Β· Deutsch Β· FranΓ§ais Β· TΓΌrkΓ§e Β· ζ—₯本θͺž Β· ν•œκ΅­μ–΄ Tomorrow morning. 10 seconds. You'll know. OPUS is a wellness app. It does not provide medical diagnosis. Always consult a healthcare professional for health decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://opus-bio.github.io/opus-privacy-/

About

StressQ

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StressQ is a personal stress and wellness self-check tool for awareness purposes only. It is not a medical device and does not provide medical diagnosis, treatment, or advice. Results are for personal reference β€” consult a healthcare professional for medical concerns. StressQ helps you understand your stress and wellness patterns through science-based self-checks using Heart Rate Variability (HRV) analysis, standardized questionnaires (DASS-21, WHO-5, K10), and eye tracking. Key Features: ● HRV Measurement β€” Analyze heart rate variability via camera PPG ● DASS-21 Self-Check β€” Internationally validated stress, anxiety, and mood wellness questionnaire ● WHO-5 Well-Being Index β€” Quick personal well-being awareness check ● K10 Distress Scale β€” Personal psychological distress awareness check ● Eye Tracking β€” Pupil response pattern analysis for stress awareness ● Comprehensive Wellness Score β€” Combined insights from sensors and questionnaires ● Personalized Tips β€” Lifestyle guidance based on your wellness scores ● History Tracking β€” Monitor your stress wellness patterns over time How to Use: 1. Place your fingertip on the rear camera to measure heart rate 2. Complete the wellness self-check questionnaires 3. Try the eye tracking stress awareness check 4. Review your comprehensive results and personalized insights All data is stored on your device only and is never transmitted externally. This app is a personal wellness self-check tool for awareness purposes only. It is not a medical device and does not provide medical diagnosis, treatment, or advice. Results are for personal reference β€” consult a healthcare professional for medical concerns.

Screenshots

Opus Wellness4 screens

Verdict

The call

The clearest difference is in-app purchases: StressQ at none against Opus Wellness's 2. StressQ also leads on iOS requirement (13.0 vs 17.0). On price 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

Both are free to download. Opus Wellness sells 2 in-app purchases, starting at $9.99 per month. StressQ asks for nothing beyond the download.

Scorecard2 real differences Β· 4 level
Opus Wellness versus StressQ: the parameters behind the verdict, then further details
ParameterOpus WellnessStressQ
PriceFreeFree
Update frequencyEvery 3 daysβ€”
AdsNoβ€”
In-app purchasesYesNo β€” better
DevicesiPhone β€” betterβ€”
Requires iOS17.013.0 β€” better
Further details β€” not scored
Size9 MB61 MB
Age rating12+17+
DeveloperCagri DelilerHeuk Kim

In-app purchases

2 purchases

Opus Wellness

Subscriptions2
  • OPUS Pro β€” Monthly14 Days trial$9.991 Month
  • OPUS Pro Yearly14 Days trial$59.991 Year
None

StressQ

No in-app purchases

Questions

Is Opus Wellness free?
Opus Wellness is free to download, with in-app purchases available.
Is StressQ free?
StressQ is free to download, with no in-app purchases.

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