# Peptide Log vs PeptiSync

The clearest difference is rating: PeptiSync at 5.0 against Peptide Log's 4.2. PeptiSync also leads on monetization model (freemium vs subscription) and update cadence (every 3 days vs every 8 days). Peptide Log's advantage is ratings volume (35 vs 2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Peptide Log sells 2 in-app purchases, starting at $8.99 per month and PeptiSync sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PeptiSync holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Peptide Log has 35 ratings behind it against 2, so its average is the more settled of the two.

Peptide Log ships an update every 8 days, PeptiSync every 3 days. The most recent releases landed on October 2, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Peptide Log | PeptiSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (35 ratings)](https://appshunter.io/ios/app/peptide-log/id6744315346/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/peptisync/id6754933334/reviews)** |
| Number of ratings | **35** | 2 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | Subscription | **Freemium** |
| Size | 60 MB | 97 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Johannes von Grundherr](https://appshunter.io/developer/1806943173) | [PeptiSync](https://appshunter.io/developer/1850982029) |

## What reviewers say

### Peptide Log

[App page](https://appshunter.io/ios/app/peptide-log/id6744315346)

Manage your peptide treatment plan with this app. Track injections, monitor progress, manage inventory, and visualize your treatment with advanced features. It offers a free trial before requiring a subscription.

**Highlights:** Multi-phase protocol tracking, Custom peptide blend creation, Full inventory management, Consumables tracking with alerts, Pharmacokinetic concentration curves, Injection site rotation, Progress photo tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Log Monthly | $8.99 | per month |
| Peptide Log Yearly | $39.99 | per year |


### PeptiSync

[App page](https://appshunter.io/ios/app/peptisync/id6754933334)

This app helps users manage peptide therapy by tracking doses, inventory, progress, and symptoms. It offers a curated library of peptides and vendor price comparisons, all within a secure and private environment.

**Highlights:** Comprehensive dose tracking, Visual progress tracking, Inventory management, Analytics and insights, Symptom and side effect logging, Peptide library, Vendor price comparison

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $4.99 | per month |
| Pro Monthly | $9.99 | per month |
| Pro Plus Monthly | $19.99 | per month |
| Basic Yearly | $54.99 | per year |
| Pro Yearly | $99.99 | per year |
| Elite Annual | $179.99 | per year |
| Pro Plus Yearly | $199.99 | per year |


## Frequently asked questions

### Is Peptide Log free?

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

### Is PeptiSync free?

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

### Which has better reviews, Peptide Log or PeptiSync?

PeptiSync is rated higher. Peptide Log averages 4.2 out of 5 from 35 ratings, while PeptiSync averages 5.0 from 2 ratings.

### Do Peptide Log or PeptiSync have ads?

Neither Peptide Log nor PeptiSync shows ads.

### Which is updated more often, Peptide Log or PeptiSync?

Peptide Log ships an update every 8 days, and PeptiSync every 3 days. Most recently, Peptide Log was updated on October 2, 2026 and PeptiSync on September 23, 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.*