# Zest vs ARQ Optimize

The clearest difference is ratings volume: ARQ Optimize at 10 against Zest's 1. On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Zest against 5.0 for ARQ Optimize. That said, the two scores are not equally well evidenced: ARQ Optimize has 10 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Zest | ARQ Optimize |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/zest-longevity/id6639614937/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/arq-optimize/id6755410931/reviews) |
| Number of ratings | 1 | **10** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 23 MB | 62 MB |
| Requires iOS | 16 | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Zest Longevity LTD](https://appshunter.io/developer/1657646407) | [Phi 1.618 Inc.](https://appshunter.io/developer/1818313067) |

## What reviewers say

### 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


### ARQ Optimize

[App page](https://appshunter.io/ios/app/arq-optimize/id6755410931)

This app helps you manage your wellness by visualizing progress and connecting you to your health goals. It integrates device data for a unified view of your health, activity, and biometrics, offering insights in a secure interface.

**Highlights:** Wellness journey control, Progress visualization, Goal connection, Device data integration, Unified health view, Biometric data tracking, Intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Zest free?

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

### Is ARQ Optimize free?

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

### Which has better reviews, Zest or ARQ Optimize?

Zest and ARQ Optimize are both rated 5.0 out of 5 on the App Store, from 1 and 10 ratings respectively.

### Do Zest or ARQ Optimize have ads?

Neither Zest nor ARQ Optimize shows ads.

### Which is updated more often, Zest or ARQ Optimize?

Zest ships an update every 3 weeks, and ARQ Optimize every 3 weeks. Most recently, Zest was updated on October 30, 2026 and ARQ Optimize 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.*