# Bio vs CortiCoach

The clearest difference is update cadence: CortiCoach at every 8 days against Bio's every 2 months. Bio's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Bio sells 3 in-app purchases, starting at $1.99 per 7 days and CortiCoach sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Bio ships an update every 2 months, CortiCoach every 8 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bio | CortiCoach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/corticoach-cortisol-tracker/id6759721947/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 21 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Thomas Ferrer](https://appshunter.io/developer/1801518132) | [Aashik Singh](https://appshunter.io/developer/1837636524) |

## What reviewers say

### Bio

[App page](https://appshunter.io/ios/app/bio-rhythm-caffeine-tracker/id6756811259)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly subscrition | $1.99 | per 7 days |
| monthly subscrition | $5.99 | per month |
| yearly subscription | $29.99 | per year |


### CortiCoach

[App page](https://appshunter.io/ios/app/corticoach-cortisol-tracker/id6759721947)

Manage chronic stress with this app that uses your body's signals. Track stress patterns via HRV and sleep data, then learn proven techniques through interactive lessons and gamified rewards. Build lasting habits for a calmer, more energized life.

**Highlights:** HRV and sleep data tracking, Gamified stress management lessons, Personalized stress insights, Daily challenges and progress tracking, Streak and XP rewards, Privacy-focused on-device data storage

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Annual | $24.99 | per year |
| Lifetime | $9.99 | one-time |
| Lifetime Access | $12.99 | one-time |


## Frequently asked questions

### Is Bio free?

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

### Is CortiCoach free?

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

### Do Bio or CortiCoach have ads?

Neither Bio nor CortiCoach shows ads.

### Which is updated more often, Bio or CortiCoach?

Bio ships an update every 2 months, and CortiCoach every 8 days. Most recently, Bio was updated on October 30, 2026 and CortiCoach on November 5, 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.*