# Primatis vs Grain Grading

The clearest difference is update cadence: Grain Grading at daily against Primatis's monthly. Grain Grading also leads on iOS requirement (11.0 vs 16.0). 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.

Primatis ships an update monthly, Grain Grading daily. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Primatis | Grain Grading |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Daily** |
| Size | 118 MB | 179 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grain Discovery](https://appshunter.io/developer/1502289585) | [Super GeoAI Technology Inc](https://appshunter.io/developer/1699258454) |

## What reviewers say

### Primatis

[App page](https://appshunter.io/ios/app/primatis/id1587961985)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grain Grading

[App page](https://appshunter.io/ios/app/grain-grading/id6453293800)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Primatis free?

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

### Is Grain Grading free?

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

### Do Primatis or Grain Grading have ads?

Neither Primatis nor Grain Grading shows ads.

### Which is updated more often, Primatis or Grain Grading?

Primatis ships an update monthly, and Grain Grading daily. Most recently, Primatis was updated on October 5, 2026 and Grain Grading on October 12, 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.*