# PepSync vs Peptide Vault

The clearest difference is update cadence: Peptide Vault at weekly against PepSync's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PepSync sells 1 one-off in-app purchase and Peptide Vault sells 15 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PepSync ships an update every 3 weeks, Peptide Vault weekly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PepSync | Peptide Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/peptide-vault-peptide-tracker/id6762064613/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | — | Subscription |
| Size | 39 MB | 56 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Rapid Sync IT LLC](https://appshunter.io/developer/1887127351) | [Jacob Teague](https://appshunter.io/developer/1891391911) |

## What reviewers say

### PepSync

[App page](https://appshunter.io/ios/app/pepsync-peptide-calculator/id6762025755)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock PepSync | $19.99 | one-time |


### Peptide Vault

[App page](https://appshunter.io/ios/app/peptide-vault-peptide-tracker/id6762064613)

Log peptide doses, track injection sites, and manage custom regimens. Access a reference library of over 50 peptides and a reconstitution calculator. All data is stored privately on your device.

**Highlights:** Dose logging, Injection site rotation, Custom regimen building, Compound overlap reporting, Peptide reference library, Reconstitution calculator, On-device data storage

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Vault Pro Weekly | $4.99 | per 7 days |
| Peptide Vault Pro Monthly | $9.99 | per month |
| Peptide Vault Pro Monthly | $12.99 | per month |
| Peptide Vault Pro Monthly | $14.99 | per month |
| Pro Annual | $29.99 | per year |
| Pro Annual — 7 Days Free | $29.99 | per year |
| Pro Annual — 14 Days Free | $29.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual — 7 Days Free | $39.99 | per year |
| Pro Annual — 14 Days Free | $39.99 | per year |
| Pro Annual — 14 Days Free | $49.99 | per year |
| Pro Annual | $49.99 | per year |
| Pro Annual — 7 Days Free | $49.99 | per year |
| Peptide Vault Pro | $69.99 | per year |


## Frequently asked questions

### Is PepSync free?

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

### Is Peptide Vault free?

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

### Do PepSync or Peptide Vault have ads?

Neither PepSync nor Peptide Vault shows ads.

### Which is updated more often, PepSync or Peptide Vault?

PepSync ships an update every 3 weeks, and Peptide Vault weekly. Most recently, PepSync was updated on October 17, 2026 and Peptide Vault on October 24, 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.*