# Project Serotonin vs Resolute

Project Serotonin and Resolute are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Project Serotonin ships an update every 3 weeks, Resolute every 5 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Project Serotonin | Resolute |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/project-serotonin/id1316376485/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 177 MB | 465 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Serotonin Inc](https://appshunter.io/developer/1316376484) | [Pytheos Health Systems Private Limited](https://appshunter.io/developer/1445444558) |

## What reviewers say

### Project Serotonin

[App page](https://appshunter.io/ios/app/project-serotonin/id1316376485)

This platform offers personalized health protocols based on your biomarkers, genetics, and lifestyle. It helps optimize foundational health, reduce disease risk, and improve longevity through targeted recommendations for diet, sleep, exercise, and supplementation.

**Highlights:** Personalized health protocols, Supplement tracking and scanning, Diet, fasting, and lifestyle logging, Biomarker tracking and lab ordering, Wearable device integration, Expert care concierge support, Community motivation features

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

**In-app purchases:** none


### Resolute

[App page](https://appshunter.io/ios/app/resolute/id1570787708)

**In-app purchases:** none


## Frequently asked questions

### Is Project Serotonin free?

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

### Is Resolute free?

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

### Do Project Serotonin or Resolute have ads?

Neither Project Serotonin nor Resolute shows ads.

### Which is updated more often, Project Serotonin or Resolute?

Project Serotonin ships an update every 3 weeks, and Resolute every 5 weeks. Most recently, Project Serotonin was updated on October 6, 2026 and Resolute on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*