# Bio Log vs P2 Health

The clearest difference is in-app purchases: P2 Health at none against Bio Log's 1. P2 Health also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bio Log sells 1 in-app purchase, starting at $3.99 per month. P2 Health asks for nothing beyond the download.

Bio Log ships an update every 2 weeks, P2 Health every 4 days. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Bio Log | P2 Health |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bio-log-peptide-tracker/id6773158529/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 14 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [alexander rieger](https://appshunter.io/developer/1839352038) | [Relive Superpeps, LLC](https://appshunter.io/developer/1896161916) |

## What reviewers say

### Bio Log

[App page](https://appshunter.io/ios/app/bio-log-peptide-tracker/id6773158529)

This app helps you meticulously track peptide doses, vial details, and personal notes in a centralized journal. It offers features for logging entries, managing injection sites, and reviewing historical data. Optional AI assistance can help organize notes and generate summaries.

**Highlights:** Dose and vial tracking, Injection site mapping, Journaling with notes, History search and filtering, Vial inventory management, AI-powered summaries, Data export

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bio Log Membership | $3.99 | per month |


### P2 Health

[App page](https://appshunter.io/ios/app/p2-health/id6801422957)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bio Log free?

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

### Is P2 Health free?

P2 Health is free to download, with no in-app purchases.

### Do Bio Log or P2 Health have ads?

Neither Bio Log nor P2 Health shows ads.

### Which is updated more often, Bio Log or P2 Health?

Bio Log ships an update every 2 weeks, and P2 Health every 4 days. Most recently, Bio Log was updated on November 10, 2026 and P2 Health on November 6, 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.*