# DD-Knots – KnotPuzzleChallenge — Unravel Knots,Train Your Brain

> Unravel Knots,Train Your Brain (iPhone/iPad app by Shandong Xinrui Information Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/dd-knots-knotpuzzlechallenge/id6757379599 (this page in markdown: same URL + `.md`)
- Developer: [Shandong Xinrui Information Technology Co., Ltd.](https://appshunter.io/developer/1669013411)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13 · 9 MB
- Languages: American English
- Released: 2026-01-05
- Data updated: 2026-06-04
- User reviews in markdown: https://appshunter.io/ios/app/dd-knots-knotpuzzlechallenge/id6757379599/reviews.md

## What is DD?

DD-Knots is a fun and challenging knot-untangling puzzle game! Test your brain and fingers as you unravel complex knots. Every level is a new puzzle – can you untangle them all?

Features:
	•	Addictive Knot Puzzles: From easy to complex knots, each level is a new challenge
	•	Brain Training: Enhance logic and problem-solving skills
	•	Simple Controls: Easy to pick up, hard to master
	•	Smooth Animations: Realistic rope physics and satisfying feedback
	•	Progressive Levels: Gradually increasing difficulty to keep you hooked

Unravel, solve, and become a master with DD-Knots!


Subscription: 1. Users can remove the advertisements only after paying the subscription fee. The monthly charge is $2.99.
2. After confirming the purchase, the subscription fee will be deducted from their iTunes account.
3. Users can cancel the automatic renewal 24 hours before the current subscription expires; otherwise, the subscription will be automatically renewed.
4. The Apple account used for the automatic renewal subscription will automatically deduct the fee from the iTunes account and extend the corresponding validity period 24 hours before the end of each billing cycle.
5. Users can manage the subscription service, that is, after purchasing, they can go to the user account settings to turn off the automatic subscription function.

User Agreement: https://github.com/dale454071867/webhome/wiki/Privacy-Policy
Privacy Policy: https://github.com/dale454071867/webhome/wiki/Privacy-Policy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| VIP | $2.99 | per month |



## Version history (last 2 releases)

### 1.0.1 — 2026-01-07

fix bugs

### 1.0 — 2026-01-06

No release notes.

## More apps by Shandong Xinrui Information Technology Co., Ltd.

- [書蟲小說-無盡小說熱門電子書閱讀神器](https://appshunter.io/ios/app/id6449509195)
- [Galaga Assault](https://appshunter.io/ios/app/galaga-assault/id6757462060)
- [Gridiron Challenge Arena](https://appshunter.io/ios/app/gridiron-challenge-arena/id6757686066)
- [Spot It Now: Difference Find](https://appshunter.io/ios/app/spot-it-now-difference-find/id6758909201)
- [Solitaire Crown Voyage](https://appshunter.io/ios/app/solitaire-crown-voyage/id6759091509)

All apps by Shandong Xinrui Information Technology Co., Ltd.: https://appshunter.io/developer/1669013411

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*