# AAR METHOD vs Biostacks

The clearest difference is in-app purchases: AAR METHOD at none against Biostacks's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Biostacks sells 2 in-app purchases, starting at $3.99 per month. AAR METHOD asks for nothing beyond the download.

AAR METHOD ships an update every 3 weeks, Biostacks every 10 days. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | AAR METHOD | Biostacks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biostacks-supplement-tracker/id6763328808/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | — | Freemium |
| Size | 192 MB | 63 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [AAR HEALTH S.L.](https://appshunter.io/developer/1751953023) | [Hmujo LLC](https://appshunter.io/developer/1895266544) |

## What reviewers say

### AAR METHOD

[App page](https://appshunter.io/ios/app/aar-method/id6504360218)

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

**In-app purchases:** none


### Biostacks

[App page](https://appshunter.io/ios/app/biostacks-supplement-tracker/id6763328808)

Easily manage your supplement intake with barcode scanning, AI assistance, and detailed insights. Track routines, monitor nutrient coverage, and analyze your stack's effectiveness and cost. Prioritizes user privacy with offline functionality and optional iCloud sync.

**Highlights:** Barcode scanning for supplement library, AI-powered supplement routine analysis, Customizable daily and cycle schedules, StackScore for routine quality, Potential interaction warnings, RDA coverage and nutrient overlap analysis, Mood, energy, and sleep trend tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Biostacks Pro - Monthly | $3.99 | per month |
| Biostacks Pro - Annual | $24.99 | per year |


## Frequently asked questions

### Is AAR METHOD free?

AAR METHOD is free to download, with no in-app purchases.

### Is Biostacks free?

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

### Do AAR METHOD or Biostacks have ads?

Neither AAR METHOD nor Biostacks shows ads.

### Which is updated more often, AAR METHOD or Biostacks?

AAR METHOD ships an update every 3 weeks, and Biostacks every 10 days. Most recently, AAR METHOD was updated on September 9, 2026 and Biostacks on September 18, 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.*