# Underwater Bubble Shooting vs Knotless

The clearest difference is in-app purchases: Underwater Bubble Shooting at none against Knotless's 5. Underwater Bubble Shooting also leads on iOS requirement (12.0 vs 15.0). Knotless's advantage is update cadence (every 3 weeks vs every 12 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Knotless sells 5 one-off in-app purchases. Underwater Bubble Shooting asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.0 for Underwater Bubble Shooting against 3.0 for Knotless. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Underwater Bubble Shooting ships an update every 12 months, Knotless every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Underwater Bubble Shooting | Knotless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/underwater-bubble-shooting/id1255649502/reviews) | [3.0 (2 ratings)](https://appshunter.io/ios/app/knotless-untangle-rope-3d/id6804435718/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 98 MB | 28 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksa Racovic](https://appshunter.io/developer/1255649501) | [Ly Truong](https://appshunter.io/developer/1687270362) |

## What reviewers say

### Underwater Bubble Shooting

[App page](https://appshunter.io/ios/app/underwater-bubble-shooting/id1255649502)

Engage in a fast-paced bubble-bursting game with simple tap controls. Strategize to clear levels efficiently, earn stars for upgrades, and compete on global leaderboards. Enjoy captivating underwater visuals and sound effects across 150 challenging levels.

**Highlights:** 150 challenging levels, Unlockable achievements, Captivating underwater graphics, Global leaderboard, Upgradeable features (bullets, time, crosshair speed), Simple tap controls

**Features:** macOS Compatibility

**In-app purchases:** none


### Knotless

[App page](https://appshunter.io/ios/app/knotless-untangle-rope-3d/id6804435718)

Untangle ropes on a board by moving their ends to pegs. Solve puzzles with unlimited levels and multiple game modes. Customize your experience with different themes and rope styles.

**Highlights:** Unlimited levels, Campaign, Zen, Bundle, and Time Attack modes, Customizable themes and rope styles, Offline play, Hint and undo features, Colorblind patterns and left-handed layout

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 500 Coins | $0.99 | one-time |
| 1500 Coins | $1.99 | one-time |
| 4,000 Coins | $3.99 | one-time |
| 9,000 Coins | $4.99 | one-time |
| Remove Ads and 500 Coins | $5.99 | one-time |


## Frequently asked questions

### Is Underwater Bubble Shooting free?

Underwater Bubble Shooting is free to download, with no in-app purchases.

### Is Knotless free?

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

### Which has better reviews, Underwater Bubble Shooting or Knotless?

Underwater Bubble Shooting and Knotless are both rated 3.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Underwater Bubble Shooting or Knotless have ads?

Both Underwater Bubble Shooting and Knotless show ads.

### Which is updated more often, Underwater Bubble Shooting or Knotless?

Underwater Bubble Shooting ships an update every 12 months, and Knotless every 3 weeks. Most recently, Underwater Bubble Shooting was updated on November 2, 2026 and Knotless on October 31, 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.*