# Peptide Calendar vs Pillyy

The clearest difference is in-app purchases: Pillyy at none against Peptide Calendar's 2. Peptide Calendar's advantage is update cadence (every 3 days vs every 5 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Peptide Calendar sells 2 in-app purchases, starting at $9.99 per month. Pillyy asks for nothing beyond the download.

Peptide Calendar ships an update every 3 days, Pillyy every 5 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Peptide Calendar | Pillyy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/peptide-calendar/id6759353949/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 5 weeks |
| Monetization | Freemium | — |
| Size | 45 MB | 34 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [KAYU Health, A Medical Corporation](https://appshunter.io/developer/1878253387) | [Mathias Rasmussen](https://appshunter.io/developer/1882880127) |

## What reviewers say

### Peptide Calendar

[App page](https://appshunter.io/ios/app/peptide-calendar/id6759353949)

Manage personal peptide protocols with a clinician. Track progress, log daily check-ins, and monitor wellness trends. Includes a reference library and optional Apple Health integration.

**Highlights:** Personal protocol management, Schedule and check-in logging, In-app reminders, Wellness trend tracking, Apple Health integration, Peptide reference library

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $79.99 | per year |


### Pillyy

[App page](https://appshunter.io/ios/app/pillyy/id6760152650)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peptide Calendar free?

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

### Is Pillyy free?

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

### Do Peptide Calendar or Pillyy have ads?

Neither Peptide Calendar nor Pillyy shows ads.

### Which is updated more often, Peptide Calendar or Pillyy?

Peptide Calendar ships an update every 3 days, and Pillyy every 5 weeks. Most recently, Peptide Calendar was updated on October 31, 2026 and Pillyy on November 5, 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.*