# Longevity App vs Zest

The clearest difference is update cadence: Zest at every 3 weeks against Longevity App's every 6 weeks. Longevity App's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Longevity App ships an update every 6 weeks, Zest every 3 weeks. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Longevity App | Zest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zest-longevity/id6639614937/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 176 MB | 23 MB |
| Requires iOS | **15.1** | 16 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [The Longevity Path Inc.](https://appshunter.io/developer/1718128558) | [Zest Longevity LTD](https://appshunter.io/developer/1657646407) |

## What reviewers say

### Longevity App

[App page](https://appshunter.io/ios/app/longevity-app/id6472953365)

**Features:** Apple Wallet

**In-app purchases:** none


### Zest

[App page](https://appshunter.io/ios/app/zest-longevity/id6639614937)

Discover your body's internal age and receive personalized insights to slow your aging rate. This app uses at-home tests and machine learning to analyze health metrics like cardiovascular fitness and cognitive function, providing tailored recommendations for improvement.

**Highlights:** Measure Functional Age, At-home health testing, Personalized health insights, Machine learning analysis, Tailored recommendations, Track aging metrics

**In-app purchases:** none


## Frequently asked questions

### Is Longevity App free?

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

### Is Zest free?

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

### Do Longevity App or Zest have ads?

Neither Longevity App nor Zest shows ads.

### Which is updated more often, Longevity App or Zest?

Longevity App ships an update every 6 weeks, and Zest every 3 weeks. Most recently, Longevity App was updated on September 11, 2026 and Zest on September 8, 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.*