Comparison

Cortisol Index vs byeloop

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

Head to head
About

Cortisol Index

This fun, AI-powered photo app playfully analyzes your picture to generate an aura reading, vibe description, and a humorous stress score. It's designed purely for entertainment, allowing you to share your results with friends or on social media.

Highlights
  • AI Aura Reading
  • Vibe Description
  • Humorous Stress Score
  • Overlay Captions
  • Shareable Results
  • Photo Analysis
Features
Read full description

Cortisol Index – AI Aura & Vibe Check What’s your aura today? And how high is your cortisol… according to the vibes? Cortisol Index is a fun, AI-powered photo app that playfully analyzes your picture to generate an aura reading, vibe description, and a totally unscientific cortisol-style stress score — just for laughs. This app is not medical, not scientific, and not serious. It’s a joke. A meme. A vibe check. Features • Aura Checker – A trendy, aesthetic description of your vibe • Vibe Breakdown – A short explanation of what the AI “sees” • Aura Score (0–100) – Purely for fun and sharing • Cortisol Index – A playful “stress level” based on visual vibes • Overlay Labels – Two-word captions perfect for screenshots • Share-Ready Results – Post to socials or send to friends How it works 1. Upload or take a photo 2. Watch the dramatic “analyzing” spinner 3. Get your aura and cortisol-style vibe scores 4. Laugh. Share. Try again. Important disclaimer Cortisol Index is for entertainment purposes only. All results are AI-generated and meant to be fun — not accurate, medical, or diagnostic. Privacy First: • Your photos are only analyzed for the purpose of your aura reading • We do not store your photos permanently • Images are securely uploaded and deleted shortly after analysis • We don’t share or sell your data — ever. We do not use facial recognition or store your photo. Images are deleted after aura analysis. The Privacy Url is here: https://auraai-feb8d.web.app/privacy.html We use Apple’s standard end user license agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

byeloop

Features
Read full description

Break the cycle and take back control of your life. Byeloop gives you a simple 21 day journey designed to rebuild discipline and strengthen your focus. Every day you unlock a short lesson, a practical action, and a breathing exercise that resets your mind. Step by step, you create momentum and start feeling more present, more confident, and more in control. What you get • 21 day structured program • Daily lessons that build awareness and discipline • Breathing exercises to calm your mind • Progress tracking and streaks • Energy points that grow with your actions • Clean, focused interface that keeps you on track • Reminders that support your routine Why it works Byeloop is built on clarity and consistency. Small daily actions create real change. The program helps you understand triggers, build new habits, and strengthen the discipline you need to break the loop. A simple way to start fresh No distractions. No feeds. No noise. Just a clear path to a better you. Start your 21 day journey today.

Screenshots

Cortisol Index4 screens
byeloop4 screens

Verdict

The call

The clearest difference is in-app purchases: byeloop at none against Cortisol Index's 1. byeloop also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement 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. Cortisol Index sells 1 in-app purchase, starting at $1.99 per month. byeloop asks for nothing beyond the download.

UpkeepUpdate frequency

Cortisol Index ships an update every 6 weeks, byeloop every 3 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 7 level
Cortisol Index versus byeloop: the parameters behind the verdict, then further details
ParameterCortisol Indexbyeloop
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size24 MB29 MB
Age rating4+17+
DeveloperJonathan GoldmanAlex Sassella

In-app purchases

1 purchases

Cortisol Index

Subscriptions1
  • Monthly$1.991 Month
None

byeloop

No in-app purchases

Questions

Is Cortisol Index free?
Cortisol Index is free to download, with in-app purchases available.
Is byeloop free?
byeloop is free to download, with no in-app purchases.
Do Cortisol Index or byeloop have ads?
Cortisol Index shows ads; byeloop does not.
Which is updated more often, Cortisol Index or byeloop?
Cortisol Index ships an update every 6 weeks, and byeloop every 3 months. Most recently, Cortisol Index was updated on October 3, 2026 and byeloop on October 10, 2026.

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