# PrepperApp vs Knot Tying 3D

The clearest difference is update cadence: PrepperApp at every 3 days against Knot Tying 3D's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PrepperApp sells 1 one-off in-app purchase and Knot Tying 3D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PrepperApp ships an update every 3 days, Knot Tying 3D every 9 days. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PrepperApp | Knot Tying 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/knot-tying-3d/id6773546878/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 9 days |
| Monetization | — | Free with in-app purchases |
| Size | 61 MB | 91 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Michael Stuut](https://appshunter.io/developer/1886367246) | [良 程](https://appshunter.io/developer/6773259834) |

## What reviewers say

### PrepperApp

[App page](https://appshunter.io/ios/app/prepperapp/id6760813421)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PrepperApp Pro | $3.99 | one-time |


### Knot Tying 3D

[App page](https://appshunter.io/ios/app/knot-tying-3d/id6773546878)

Learn to tie a variety of knots with immersive 3D animations and step-by-step instructions. Covers fishing, camping, climbing, and daily use scenarios. Practice essential ropework skills anytime, anywhere, even offline.

**Highlights:** Immersive 3D knot animations, Step-by-step instructions, 7 life scenario categories, Smart search by name or usage, Offline learning capability, Resume learning progress

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全部教程永久解锁 | $2.99 | one-time |


## Frequently asked questions

### Is PrepperApp free?

PrepperApp is free to download, with in-app purchases available.

### Is Knot Tying 3D free?

Knot Tying 3D is free to download, with in-app purchases available.

### Do PrepperApp or Knot Tying 3D have ads?

Neither PrepperApp nor Knot Tying 3D shows ads.

### Which is updated more often, PrepperApp or Knot Tying 3D?

PrepperApp ships an update every 3 days, and Knot Tying 3D every 9 days. Most recently, PrepperApp was updated on October 19, 2026 and Knot Tying 3D on October 3, 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.*