# Smart Peptide Tracker vs Bio Log

The clearest difference is ratings volume: Smart Peptide Tracker at 167 against Bio Log's 2. Smart Peptide Tracker also leads on update cadence (every 5 days vs every 3 weeks) and device support (3 vs 1). Bio Log's advantage is rating (5.0 vs 4.7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Smart Peptide Tracker sells 11 one-off in-app purchases and Bio Log sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Bio Log holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Smart Peptide Tracker has 167 ratings behind it against 2, so its average is the more settled of the two.

Smart Peptide Tracker ships an update every 5 days, Bio Log every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Smart Peptide Tracker | Bio Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (167 ratings)](https://appshunter.io/ios/app/smart-peptide-tracker/id6758162412/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bio-log-peptide-tracker/id6773158529/reviews)** |
| Number of ratings | **167** | 2 |
| Positive reviews | 87.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 120 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Sean Hussain](https://appshunter.io/developer/1871263008) | [alexander rieger](https://appshunter.io/developer/1839352038) |

## What reviewers say

### Smart Peptide Tracker

[App page](https://appshunter.io/ios/app/smart-peptide-tracker/id6758162412)

Manage research supplies, schedule routines, and track personal progress with this comprehensive companion app. Features include inventory tracking, customizable reminders, and detailed logging. Premium features offer advanced progress charting and stack analysis.

**Highlights:** Inventory management with visual indicators, Customizable recurring schedules and reminders, One-tap logging with 14-day backfill, Reference library for compounds and blends, Progress tracking with charts and photos (Premium), Stack analyzer with radar charts (Premium), Cycle planner and spending records

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peak 3-day Trial | Free | one-time |
| Ai Question Pack (20 questions) | $4.99 | one-time |
| Partner Add-on | $9.99 | one-time |
| Extra Partner Add-on | $9.99 | one-time |
| Premium Lifetime - Discount | $14.99 | one-time |
| Partner Biomarkers Add-on | $14.99 | one-time |
| Biomarkers Add-on | $14.99 | one-time |
| Premium Lifetime | $19.99 | one-time |
| Partner Mode+ | $19.99 | one-time |
| Peak | $29.99 | one-time |
| Elite | $39.99 | one-time |


### 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 daily views, logging capabilities, and history search, with optional AI assistance for summaries and organization. Records are stored locally for your control.

**Highlights:** Schedule and dose tracking, Vial inventory management, Injection site mapping, Journal search and filtering, AI-powered note organization, Local data storage, Data export

**In-app purchases (1)**

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


## Frequently asked questions

### Is Smart Peptide Tracker free?

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

### Is Bio Log free?

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

### Which has better reviews, Smart Peptide Tracker or Bio Log?

Bio Log is rated higher. Smart Peptide Tracker averages 4.7 out of 5 from 167 ratings, while Bio Log averages 5.0 from 2 ratings.

### Do Smart Peptide Tracker or Bio Log have ads?

Neither Smart Peptide Tracker nor Bio Log shows ads.

### Which is updated more often, Smart Peptide Tracker or Bio Log?

Smart Peptide Tracker ships an update every 5 days, and Bio Log every 3 weeks. Most recently, Smart Peptide Tracker was updated on October 31, 2026 and Bio Log on October 31, 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.*