# SHOTLOG vs Protocol Tracker

The clearest difference is iOS requirement: SHOTLOG at 15.1 against Protocol Tracker's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SHOTLOG sells 8 in-app purchases, starting at $0.99 per month and Protocol Tracker sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

SHOTLOG ships an update fortnightly, Protocol Tracker every 2 weeks. The most recent releases landed on September 11, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | SHOTLOG | Protocol Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Freemium | — |
| Size | 53 MB | 20 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [RoboCFI LLC](https://appshunter.io/developer/953702880) | [Mc Pol Cruz](https://appshunter.io/developer/1884728788) |

## What reviewers say

### SHOTLOG

[App page](https://appshunter.io/ios/app/shotlog-peptide-tracker/id6738789312)

This app helps users meticulously track peptide protocols for weight loss and biohacking. It offers features like dose reminders, unit calculations, inventory management, and progress monitoring through charts and photos. Users can log nutrition, side effects, and export data for healthcare providers.

**Highlights:** Customizable peptide protocol creation, Dose calculation (mg, mcg, IU to units), Vial inventory and dose tracking, Intelligent dose reminders, Automatic injection site rotation, Weight, measurement, and progress photo tracking, Nutrition and side effect logging, Data export for healthcare providers

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $0.99 | per month |
| Basic | $1.99 | per month |
| Pro Monthly | $2.99 | per month |
| Premium Monthly | $4.99 | per month |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $34.99 | per year |
| Premium Annually | $34.99 | per year |
| Pro Yearly | $34.99 | per year |


### Protocol Tracker

[App page](https://appshunter.io/ios/app/protocol-tracker-dosefi/id6760504673)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $34.99 | per year |


## Frequently asked questions

### Is SHOTLOG free?

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

### Is Protocol Tracker free?

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

### Do SHOTLOG or Protocol Tracker have ads?

Neither SHOTLOG nor Protocol Tracker shows ads.

### Which is updated more often, SHOTLOG or Protocol Tracker?

SHOTLOG ships an update fortnightly, and Protocol Tracker every 2 weeks. Most recently, SHOTLOG was updated on September 11, 2026 and Protocol Tracker on September 14, 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.*