# Bubble Bust! 2 Premium vs Shift Shaft

The clearest difference is update cadence: Shift Shaft at fortnightly against Bubble Bust! 2 Premium's every 15 months. Shift Shaft also leads on rating (4.9 vs 4.5) and review sentiment (100% vs 80%). Bubble Bust! 2 Premium's advantage is iOS requirement (11.0 vs 14.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Bubble Bust! 2 Premium costs $4.99 and Shift Shaft $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Shift Shaft holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 49 and 143 respectively. Written reviews point the same way: 80% of Bubble Bust! 2 Premium's written reviews are positive against 100% of Shift Shaft's.

Bubble Bust! 2 Premium ships an update every 15 months, Shift Shaft fortnightly. The most recent releases landed on September 3, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Bubble Bust! 2 Premium | Shift Shaft |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | [4.5 (49 ratings)](https://appshunter.io/ios/app/bubble-bust-2-premium/id1186813592/reviews) | **[4.9 (143 ratings)](https://appshunter.io/ios/app/shift-shaft/id1387207777/reviews)** |
| Number of ratings | 49 | **143** |
| Positive reviews | 80.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#199** |
| Size | 48 MB | 34 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [GOES International AB](https://appshunter.io/developer/381342316) | [William Katz](https://appshunter.io/developer/1387207776) |

## What reviewers say

### Bubble Bust! 2 Premium

[App page](https://appshunter.io/ios/app/bubble-bust-2-premium/id1186813592)

Engage in a highly addictive bubble-popping adventure across six vibrant worlds and hundreds of challenging levels. Utilize powerful boosters and unique bubble types to overcome obstacles and defeat bosses in various exciting game modes.

**Highlights:** Hundreds of levels across 6 worlds, Four exciting game modes, Over 30 unique bubbles and obstacles, Challenging bosses with unique skills, Powerful boosters and energy orbs, Breathtaking graphics and visual effects

**Features:** Vision Pro support

**In-app purchases:** none


### Shift Shaft

[App page](https://appshunter.io/ios/app/shift-shaft/id1387207777)

**Currently charting:** #199 Top Paid · Casual (US App Store)

This puzzle game challenges players to match three or more rocks by rotating the entire game board. Upgrade your character's stats and unlock items as you explore an underground world and battle unique enemies. Enjoy an uninterrupted gaming experience with no ads or in-app purchases.

**Highlights:** Rotate the game board, Match 3 or more rocks, Upgrade player stats, Unlock over 30 items, Battle 5 unique enemies, Explore underground world

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

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative rotate screen mechanic
- 👍 Easy to learn, hard to master
- 💎 Rare hidden gem
- 🧠 Clever and entertaining design
- ✨ Adds a breath of fresh air

**What reviewers complain about**

- 📉 Graphics could be less pixelated
- 🤔 Difficult to pick up strategies
- ⏳ Mid-run save feature missing

**Requested features**

- Non-pixelated graphics
- Mid-run save option


## Frequently asked questions

### Is Bubble Bust! 2 Premium free?

Bubble Bust! 2 Premium costs $4.99, with no in-app purchases.

### Is Shift Shaft free?

Shift Shaft costs $2.99, with no in-app purchases.

### Which has better reviews, Bubble Bust! 2 Premium or Shift Shaft?

Shift Shaft is rated higher. Bubble Bust! 2 Premium averages 4.5 out of 5 from 49 ratings, while Shift Shaft averages 4.9 from 143 ratings.

### Do Bubble Bust! 2 Premium or Shift Shaft have ads?

Neither Bubble Bust! 2 Premium nor Shift Shaft shows ads.

### Which is updated more often, Bubble Bust! 2 Premium or Shift Shaft?

Bubble Bust! 2 Premium ships an update every 15 months, and Shift Shaft fortnightly. Most recently, Bubble Bust! 2 Premium was updated on September 3, 2026 and Shift Shaft on September 10, 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.*