# USB Checkoff vs DuMond Grain

USB Checkoff and DuMond Grain are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

USB Checkoff ships an update monthly, DuMond Grain every 6 weeks. The most recent releases landed on September 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | USB Checkoff | DuMond Grain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Size | 52 MB | 29 MB |
| Requires iOS | 15.0.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [United Soybean](https://appshunter.io/developer/1768558464) | [Cultura Technologies Inc](https://appshunter.io/developer/1130864545) |

## What reviewers say

### USB Checkoff

[App page](https://appshunter.io/ios/app/usb-checkoff/id6686394700)

**Features:** macOS Compatibility

**In-app purchases:** none


### DuMond Grain

[App page](https://appshunter.io/ios/app/dumond-grain/id6740335013)

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

**In-app purchases:** none


## Frequently asked questions

### Is USB Checkoff free?

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

### Is DuMond Grain free?

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

### Do USB Checkoff or DuMond Grain have ads?

Neither USB Checkoff nor DuMond Grain shows ads.

### Which is updated more often, USB Checkoff or DuMond Grain?

USB Checkoff ships an update monthly, and DuMond Grain every 6 weeks. Most recently, USB Checkoff was updated on September 10, 2026 and DuMond Grain on October 6, 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.*