# PeptidePilot vs VialRhythm

The clearest difference is update cadence: VialRhythm at daily against PeptidePilot's weekly. PeptidePilot's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

PeptidePilot ships an update weekly, VialRhythm daily. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PeptidePilot | VialRhythm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/vialrhythm-peptide-tracker/id6794910817/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | — | Free |
| Size | 10 MB | 5 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Caden Bartlett](https://appshunter.io/developer/1889384537) | [Marc Dela Cruz](https://appshunter.io/developer/6794911119) |

## What reviewers say

### PeptidePilot

[App page](https://appshunter.io/ios/app/peptidepilot-peptide-tracker/id6765950284)

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

**In-app purchases:** none


### VialRhythm

[App page](https://appshunter.io/ios/app/vialrhythm-peptide-tracker/id6794910817)

Organize your entries, view your schedule, and maintain a history with this local-first app. Features include customizable themes, a calculator for transparent arithmetic, and iPhone-specific integrations like widgets and Face ID lock.

**Highlights:** Local-first scheduling and record-keeping, Day-at-a-glance schedule view, Mark entries as completed, skipped, or missed, Customizable themes, Transparent arithmetic calculator, iPhone-specific features (widgets, Face ID)

**In-app purchases:** none


## Frequently asked questions

### Is PeptidePilot free?

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

### Is VialRhythm free?

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

### Do PeptidePilot or VialRhythm have ads?

Neither PeptidePilot nor VialRhythm shows ads.

### Which is updated more often, PeptidePilot or VialRhythm?

PeptidePilot ships an update weekly, and VialRhythm daily. Most recently, PeptidePilot was updated on October 18, 2026 and VialRhythm on October 24, 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.*