# Duffy Grain vs NutraAg

The clearest difference is update cadence: Duffy Grain at every 5 weeks against NutraAg's every 4 months. 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.

Duffy Grain ships an update every 5 weeks, NutraAg every 4 months. The most recent releases landed on May 16, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Duffy Grain | NutraAg |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Size | 6 MB | 6 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DUFFY GRAIN, INC.](https://appshunter.io/developer/1578918087) | [NUTRAAG, LLC](https://appshunter.io/developer/1717672931) |

## What reviewers say

### Duffy Grain

[App page](https://appshunter.io/ios/app/duffy-grain/id1582189645)

**Features:** macOS Compatibility

**In-app purchases:** none


### NutraAg

[App page](https://appshunter.io/ios/app/nutraag/id6474455619)

**In-app purchases:** none


## Frequently asked questions

### Is Duffy Grain free?

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

### Is NutraAg free?

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

### Do Duffy Grain or NutraAg have ads?

Neither Duffy Grain nor NutraAg shows ads.

### Which is updated more often, Duffy Grain or NutraAg?

Duffy Grain ships an update every 5 weeks, and NutraAg every 4 months. Most recently, Duffy Grain was updated on May 16, 2026 and NutraAg on September 14, 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.*