# Caffeine Half Life vs PepLedger

The clearest difference is ads: Caffeine Half Life at none against PepLedger's shown. PepLedger's advantage is iOS requirement (15.1 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Caffeine Half Life sells 1 in-app purchase, starting at $1.99 per month and PepLedger sells 2 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Caffeine Half Life | PepLedger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 days | — |
| Size | 13 MB | 60 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Adrian Nowak](https://appshunter.io/developer/1888522412) | [Mohammad Baqer](https://appshunter.io/developer/6773795482) |

## What reviewers say

### Caffeine Half Life

[App page](https://appshunter.io/ios/app/caffeine-half-life/id6761268609)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |


### PepLedger

[App page](https://appshunter.io/ios/app/pepledger-peptide-tracker/id6773795480)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepLedger Premium | $6.99 | per 7 days |
| PepLedger Premium | $49.99 | per year |


## Frequently asked questions

### Is Caffeine Half Life free?

Caffeine Half Life is free to download, with in-app purchases available.

### Is PepLedger free?

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

### Do Caffeine Half Life or PepLedger have ads?

PepLedger shows ads; Caffeine Half Life does not.

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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.*