# Tetragram vs Black River Supply

The clearest difference is update cadence: Tetragram at every 5 weeks against Black River Supply's every 6 months. Tetragram also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tetragram ships an update every 5 weeks, Black River Supply every 6 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Tetragram | Black River Supply |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (43 ratings)](https://appshunter.io/ios/app/tetragram/id1492445695/reviews)** | — |
| Number of ratings | **43** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 200 MB | 9 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Tetragram](https://appshunter.io/developer/1492445694) | [Black River Supply Company LLC](https://appshunter.io/developer/1822636560) |

## What reviewers say

### Tetragram

[App page](https://appshunter.io/ios/app/tetragram/id1492445695)

This app helps cannabis users track product usage, delivery methods, and symptom improvement to find optimal experiences. Users can log what works best for their unique needs and share ratings with a community for product discovery. It provides insights into cannabis journeys for personal understanding and health team consultation.

**Highlights:** Log cannabis products and delivery methods, Track symptom improvement and usage trends, Understand strain effects and find similar products, Share ratings with the community, Control privacy of shared information

**Features:** Vision Pro support

**In-app purchases:** none


### Black River Supply

[App page](https://appshunter.io/ios/app/black-river-supply/id6747728302)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tetragram free?

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

### Is Black River Supply free?

Black River Supply is free to download, with no in-app purchases.

### Do Tetragram or Black River Supply have ads?

Neither Tetragram nor Black River Supply shows ads.

### Which is updated more often, Tetragram or Black River Supply?

Tetragram ships an update every 5 weeks, and Black River Supply every 6 months. Most recently, Tetragram was updated on November 3, 2026 and Black River Supply on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*