# Sereno vs Longevity Arc

The clearest difference is review sentiment: Sereno at 100% against Longevity Arc's 0%. Sereno also leads on update cadence (daily vs every 3 days). Longevity Arc's advantage is iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sereno sells 3 in-app purchases, starting at $3.99 per 7 days and Longevity Arc sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Sereno ships an update daily, Longevity Arc every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Sereno | Longevity Arc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/longevity-arc/id6766045106/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Monetization | Free with in-app purchases | Freemium |
| Size | 27 MB | 40 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [BARBAROS SELIM BUYUKELCI](https://appshunter.io/developer/1861903946) | [Radoslaw Jozefowicz](https://appshunter.io/developer/1859278240) |

## What reviewers say

### Sereno

[App page](https://appshunter.io/ios/app/sereno-ai-stress-tracker/id6760587815)

This app uses AI to monitor your stress levels by analyzing data from your Apple Watch and Health app. It tracks HRV, sleep, recovery, and activity to provide real-time insights and AI-driven explanations for changes in your body. Guided breathing exercises are available for moments of high stress.

**Highlights:** AI stress monitoring, HRV, sleep, and recovery tracking, Real-time stress pattern analysis, AI-driven explanations for body changes, Guided breathing exercises, Weekly stress trend reports, Doctor-ready summaries

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sereno Premium | $3.99 | per 7 days |
| Sereno Premium | $7.99 | per month |
| Sereno Premium (Annual) | $39.99 | per year |


### Longevity Arc

[App page](https://appshunter.io/ios/app/longevity-arc/id6766045106)

Consolidates your Apple Health data into five key longevity signals, offering a clear dashboard for tracking HRV, fitness, sleep, gait, and cardiac load trends. Understand your body's long-term trajectory and make informed decisions about your health.

**Highlights:** Five longevity signals from Apple Health, HRV, fitness, sleep, gait, cardiac load tracking, Simple dashboard for trend analysis, Understand long-term health trajectory, Private, HealthKit-powered experience

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Lifetime Pro | $8.99 | one-time |


## Frequently asked questions

### Is Sereno free?

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

### Is Longevity Arc free?

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

### Do Sereno or Longevity Arc have ads?

Neither Sereno nor Longevity Arc shows ads.

### Which is updated more often, Sereno or Longevity Arc?

Sereno ships an update daily, and Longevity Arc every 3 days. Most recently, Sereno was updated on October 31, 2026 and Longevity Arc on October 31, 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.*