# Helix vs PeptideStack

The clearest difference is update cadence: Helix at weekly against PeptideStack's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Helix sells 2 in-app purchases, starting at $9.99 per month and PeptideStack sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Helix ships an update weekly, PeptideStack every 4 months. The most recent releases landed on September 23, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Helix | PeptideStack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 4 months |
| Size | 53 MB | 38 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Nadja Felk](https://appshunter.io/developer/1869902294) | [Enes Koc](https://appshunter.io/developer/1876640525) |

## What reviewers say

### Helix

[App page](https://appshunter.io/ios/app/helix-stack-and-peptide-tracker/id6763740232)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Helix Pro - Monthly | $9.99 | per month |
| Helix Pro - Yearly | $59.99 | per year |


### PeptideStack

[App page](https://appshunter.io/ios/app/peptidestack-peptide-tracker/id6763878251)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PeptideStack Premium Monthly | $4.99 | per month |
| PeptideStack Premium Annual | $29.99 | per year |
| PeptideStack Premium Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Helix free?

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

### Is PeptideStack free?

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

### Do Helix or PeptideStack have ads?

Neither Helix nor PeptideStack shows ads.

### Which is updated more often, Helix or PeptideStack?

Helix ships an update weekly, and PeptideStack every 4 months. Most recently, Helix was updated on September 23, 2026 and PeptideStack on September 11, 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.*