# Polypep vs Fastory

The clearest difference is ads: Fastory at none against Polypep's shown. Fastory also leads on iOS requirement (15.1 vs 17.0). Polypep's advantage is update cadence (every 3 days vs every 9 days). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Polypep sells 4 in-app purchases, starting at $6.99 per month and Fastory sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Polypep ships an update every 3 days, Fastory every 9 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Polypep | Fastory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fastory-intermittent-fasting/id6775716410/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 99 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 17+ |
| Developer | [Dal Rupnik](https://appshunter.io/developer/631308099) | [Phonthip Satthabun](https://appshunter.io/developer/1895035730) |

## What reviewers say

### Polypep

[App page](https://appshunter.io/ios/app/polypep-peptide-tracker/id6768591859)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Ultimate Monthly | $14.99 | per month |
| Pro Yearly | $49.99 | per year |
| Ultimate Yearly | $99.99 | per year |


### Fastory

[App page](https://appshunter.io/ios/app/fastory-intermittent-fasting/id6775716410)

This app offers personalized intermittent fasting guidance with an AI coach that analyzes your health data. It provides tailored insights, progress tracking, and flexible fasting timers to help you build healthy habits. Integrates with Apple Health and offers convenient widgets for at-a-glance updates.

**Highlights:** Personal AI Coach, AI insights after each fast, Flexible fasting timer, Weight & BMI tracking, Daily journal, Apple Health integration, Home Screen widgets

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fastory Premium Monthly | $6.99 | per month |
| Fastory Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is Polypep free?

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

### Is Fastory free?

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

### Do Polypep or Fastory have ads?

Polypep shows ads; Fastory does not.

### Which is updated more often, Polypep or Fastory?

Polypep ships an update every 3 days, and Fastory every 9 days. Most recently, Polypep was updated on October 28, 2026 and Fastory 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.*