# Kalibra vs Longevity One Pro

The clearest difference is update cadence: Longevity One Pro at every 6 days against Kalibra's every 2 weeks. Kalibra's advantage is iOS requirement (15.1 vs 17.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Kalibra sells 1 in-app purchase, starting at $19.99 per month and Longevity One Pro sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Kalibra ships an update every 2 weeks, Longevity One Pro every 6 days. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Kalibra | Longevity One Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 63 MB | 244 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kalibra](https://appshunter.io/developer/1569689809) | [Fetched Wellness Ltd](https://appshunter.io/developer/1808805796) |

## What reviewers say

### Kalibra

[App page](https://appshunter.io/ios/app/kalibra/id1569689807)

This app applies physical science methods to health, quantifying and analyzing markers through precise diagnostics and advanced data analysis. It integrates with Apple Health to guide users toward a balanced physical, mental, and social well-being.

**Highlights:** Precise diagnostic measurements, Advanced data analysis, Machine learning insights, Inferential statistics, Apple Health integration, Holistic health balance guidance

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enhanced (monthly) | $19.99 | per month |


### Longevity One Pro

[App page](https://appshunter.io/ios/app/longevity-one-pro/id6745081012)

This app translates longevity research into actionable daily habits. It uses lifestyle data, optional blood markers, and AI to estimate your health-span potential and guide you toward healthier choices. Track progress, store health documents, and gain AI-powered insights to add healthy years to your life.

**Highlights:** Longevity Score tracking, Lifestyle Age comparison, Biological Age calculation (blood tests), AI Daily Insights and recommendations, Habit Builder & Tracker, Evidence-based lessons and quizzes, Trends dashboard, Apple Health sync

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Longevity One Pro Plan | $9.99 | per month |
| Annnual Subscription | $99.99 | per year |


## Frequently asked questions

### Is Kalibra free?

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

### Is Longevity One Pro free?

Longevity One Pro is free to download, with in-app purchases available.

### Do Kalibra or Longevity One Pro have ads?

Neither Kalibra nor Longevity One Pro shows ads.

### Which is updated more often, Kalibra or Longevity One Pro?

Kalibra ships an update every 2 weeks, and Longevity One Pro every 6 days. Most recently, Kalibra was updated on October 13, 2026 and Longevity One Pro on October 10, 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.*