# GO UNDER vs Knotty USA

The clearest difference is ads: GO UNDER at none against Knotty USA's shown. GO UNDER also leads on iOS requirement (12.0 vs 15.0). Knotty USA's advantage is update cadence (monthly vs every 3 months). On price, 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.

GO UNDER ships an update every 3 months, Knotty USA monthly. The most recent releases landed on October 1, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | GO UNDER | Knotty USA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (107 ratings)](https://appshunter.io/ios/app/knotty-usa/id1666034479/reviews)** |
| Number of ratings | — | **107** |
| Positive reviews | — | 6.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 75 MB | 98 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Appcommerce Technologies LTD](https://appshunter.io/developer/1601276346) | [Knotty Knickers INC](https://appshunter.io/developer/1666034482) |

## What reviewers say

### GO UNDER

[App page](https://appshunter.io/ios/app/go-under/id1601276014)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knotty USA

[App page](https://appshunter.io/ios/app/knotty-usa/id1666034479)

This app provides exclusive discounts and early access to new product launches. Enjoy easy browsing of the full catalog and receive notifications for special offers. Secure checkout makes shopping quick and convenient.

**Highlights:** Exclusive discounts, Early access to launches, Easy catalog browsing, First-to-know notifications, App-user-only early access, Secure and fast checkout

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GO UNDER free?

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

### Is Knotty USA free?

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

### Do GO UNDER or Knotty USA have ads?

Knotty USA shows ads; GO UNDER does not.

### Which is updated more often, GO UNDER or Knotty USA?

GO UNDER ships an update every 3 months, and Knotty USA monthly. Most recently, GO UNDER was updated on October 1, 2026 and Knotty USA on October 19, 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.*