# SupplementStack vs Optimized Human

The clearest difference is update cadence: SupplementStack at every 2 days against Optimized Human's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SupplementStack sells 4 in-app purchases, starting at $4.99 per month and Optimized Human sells 2 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

SupplementStack ships an update every 2 days, Optimized Human fortnightly. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SupplementStack | Optimized Human |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/optimized-human/id6785295451/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 49 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nevo Solutions Inc](https://appshunter.io/developer/1879331980) | [Optimized Human LLC](https://appshunter.io/developer/6785295453) |

## What reviewers say

### SupplementStack

[App page](https://appshunter.io/ios/app/supplementstack/id6783505437)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SupplementStack Plus | $4.99 | per month |
| SupplementStack Pro | $9.99 | per month |
| SupplementStack Plus Annual | $39.00 | per year |
| SupplementStack Pro Annual | $79.00 | per year |


### Optimized Human

[App page](https://appshunter.io/ios/app/optimized-human/id6785295451)

Manage peptide protocols with ease. Plan cycles, calculate doses, track injections, and monitor inventory. Syncs across devices and offers free basic tracking with an optional Pro subscription for advanced features.

**Highlights:** Protocol planning with cycling and periodization, Titration support for dose adjustments, Reconstitution calculator for precise dosing, Dose logging with visual injection site tracking, Inventory management with low-stock alerts, Cross-device data synchronization

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Monthly | $19.99 | per month |
| Pro — Annual | $191.99 | per year |


## Frequently asked questions

### Is SupplementStack free?

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

### Is Optimized Human free?

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

### Do SupplementStack or Optimized Human have ads?

Neither SupplementStack nor Optimized Human shows ads.

### Which is updated more often, SupplementStack or Optimized Human?

SupplementStack ships an update every 2 days, and Optimized Human fortnightly. Most recently, SupplementStack was updated on October 4, 2026 and Optimized Human on October 1, 2026.

---

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