# PeptidesAI vs Protocol

PeptidesAI and Protocol are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PeptidesAI sells 4 in-app purchases, starting at $4.99 per 7 days and Protocol sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

PeptidesAI ships an update every 11 days, Protocol every 6 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PeptidesAI | Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/peptidesai-peptide-tracker/id6763221310/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 18 MB | 20 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [James Vu](https://appshunter.io/developer/1863154749) | [ISAK SCHALK BURGER](https://appshunter.io/developer/6797546482) |

## What reviewers say

### PeptidesAI

[App page](https://appshunter.io/ios/app/peptidesai-peptide-tracker/id6763221310)

Instantly calculate peptide reconstitution and dosage units, then track your entire cycle. Log doses, monitor vial levels, and receive expiry and low-supply alerts. Features an injection site map, progress tracking, and a reference for 70 compounds with an AI assistant.

**Highlights:** Instant dose and reconstitution calculation, Live vial level and expiry tracking, Injection site mapping, Weight and progress photo tracking, AI assistant for peptide information, Data export to CSV

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $9.99 | per month |
| Yearly Premium | $49.99 | per year |
| Lifetime Premium | $79.99 | one-time |


### Protocol

[App page](https://appshunter.io/ios/app/protocol-trt-and-peptides/id6797546480)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protocol Pro | $3.99 | per month |
| Protocol Pro | $39.99 | per year |


## Frequently asked questions

### Is PeptidesAI free?

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

### Is Protocol free?

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

### Do PeptidesAI or Protocol have ads?

Neither PeptidesAI nor Protocol shows ads.

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

PeptidesAI ships an update every 11 days, and Protocol every 6 days. Most recently, PeptidesAI was updated on October 28, 2026 and Protocol 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.*