# Aion Longevity vs Biostacks

The clearest difference is ads: Biostacks at none against Aion Longevity's shown. Aion Longevity's advantage is update cadence (every 4 days vs every 10 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Aion Longevity sells 1 in-app purchase, starting at $0.99 per month and Biostacks sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Aion Longevity ships an update every 4 days, Biostacks every 10 days. The most recent releases landed on September 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Aion Longevity | 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 | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 10 days |
| Monetization | — | Freemium |
| Size | 53 MB | 63 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Aion Longevity LTD](https://appshunter.io/developer/1788209936) | [Hmujo LLC](https://appshunter.io/developer/1895266544) |

## What reviewers say

### Aion Longevity

[App page](https://appshunter.io/ios/app/aion-longevity/id6758638095)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Aion Pro Monthly | $0.99 | per month |


### 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 Aion Longevity free?

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

### Is Biostacks free?

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

### Do Aion Longevity or Biostacks have ads?

Aion Longevity shows ads; Biostacks does not.

### Which is updated more often, Aion Longevity or Biostacks?

Aion Longevity ships an update every 4 days, and Biostacks every 10 days. Most recently, Aion Longevity was updated on September 12, 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.*