# Protocol vs PepLog

The clearest difference is rating: Protocol at 5.0 against PepLog's 4.4. PepLog's advantage is monetization model (free vs subscription) and ratings volume (25 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Protocol sells 2 in-app purchases, starting at $2.99 per month and PepLog sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Protocol holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: PepLog has 25 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Protocol | PepLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protocol-peptide-and-glp-1-log/id6760647666/reviews)** | [4.4 (25 ratings)](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604/reviews) |
| Number of ratings | 1 | **25** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Subscription | **Free** |
| Size | 42 MB | 34 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Handbook Digital Limited](https://appshunter.io/developer/1550766974) | [Moises Olivares](https://appshunter.io/developer/6794804081) |

## What reviewers say

### Protocol

[App page](https://appshunter.io/ios/app/protocol-peptide-and-glp-1-log/id6760647666)

This app helps you manage your peptide schedules, doses, and records in one place. Track your progress, log injections, record measurements, and monitor daily well-being. It also offers AI-powered insights into your routine and supply.

**Highlights:** Organize compounds, schedules, and phases, Track upcoming doses and supply, Log injection details and site, Record body measurements over time, Daily check-ins for energy, sleep, mood, AI-powered record retrieval

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $29.99 | per year |


### PepLog

[App page](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604)

This app helps users manage peptide protocols by providing a private, on-device logbook. Quickly record doses, track vial usage, monitor consistency with streaks and history, and log weight over time. It also includes a unit converter for precise measurements.

**Highlights:** Log doses in seconds, Track vial contents and remaining amounts, Monitor logging consistency and history, Chart weight over time with goals, Unit converter for syringe measurements, Private, on-device data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepLog Pro Monthly | $9.99 | per month |
| PepLog Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Protocol free?

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

### Is PepLog free?

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

### Which has better reviews, Protocol or PepLog?

Protocol is rated higher. Protocol averages 5.0 out of 5 from 1 ratings, while PepLog averages 4.4 from 25 ratings.

### Do Protocol or PepLog have ads?

Neither Protocol nor PepLog shows ads.

### Which is updated more often, Protocol or PepLog?

Protocol ships an update fortnightly, and PepLog fortnightly. Most recently, Protocol was updated on October 24, 2026 and PepLog on October 25, 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.*