# byeloop vs Cortizol Tracker

The clearest difference is in-app purchases: byeloop at none against Cortizol Tracker's 8. byeloop also leads on iOS requirement (15.1 vs 17.0). Cortizol Tracker's advantage is update cadence (every 11 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Cortizol Tracker sells 8 in-app purchases, starting at $1.99 per 7 days. byeloop asks for nothing beyond the download.

byeloop ships an update every 3 months, Cortizol Tracker every 11 days. The most recent releases landed on October 10, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | byeloop | Cortizol Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (21 ratings)](https://appshunter.io/ios/app/cortizol-tracker/id6759969270/reviews)** |
| Number of ratings | — | **21** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 11 days** |
| Monetization | — | Freemium |
| Size | 29 MB | 311 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [Alex Sassella](https://appshunter.io/developer/1858483906) | [PMEPLUS](https://appshunter.io/developer/1837454392) |

## What reviewers say

### byeloop

[App page](https://appshunter.io/ios/app/byeloop/id6756094444)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cortizol Tracker

[App page](https://appshunter.io/ios/app/cortizol-tracker/id6759969270)

This app uses AI to analyze stress levels by scanning your face, tracking food intake, sleep patterns, and cognitive performance. It provides detailed reports and personalized suggestions to help manage cortisol.

**Highlights:** AI facial scan for cortisol markers, Cognitive performance tests, AI food scanner with recipe suggestions, AI sleep tracking and advice, Full diagnostic report with 47 factors, Personalized recovery goals

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortisol Pro | $1.99 | per 7 days |
| Cortisol Pro | $4.99 | per month |
| Monthly Pro | $8.99 | per month |
| Cortisol Pro Yearly | $24.99 | per year |
| Cortisol Pro Yearly | $49.99 | per year |
| Re evaluate | $4.99 | one-time |
| Cortisol Pro LifeTime | $44.99 | one-time |
| Cortisol Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is byeloop free?

byeloop is free to download, with no in-app purchases.

### Is Cortizol Tracker free?

Cortizol Tracker is free to download, with in-app purchases available.

### Do byeloop or Cortizol Tracker have ads?

Neither byeloop nor Cortizol Tracker shows ads.

### Which is updated more often, byeloop or Cortizol Tracker?

byeloop ships an update every 3 months, and Cortizol Tracker every 11 days. Most recently, byeloop was updated on October 10, 2026 and Cortizol Tracker on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*