# Troll brain vs Bubble.Fill

The clearest difference is ratings volume: Bubble.Fill at 17 against Troll brain's 1. Troll brain's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Troll brain sells 1 one-off in-app purchase and Bubble.Fill sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Troll brain against 5.0 for Bubble.Fill. That said, the two scores are not equally well evidenced: Bubble.Fill has 17 ratings behind it against 1, so its average is the more settled of the two.

Troll brain ships an update weekly, Bubble.Fill fortnightly. The most recent releases landed on October 11, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Troll brain | Bubble.Fill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/troll-brain-bobs-world/id1631468468/reviews) | [5.0 (17 ratings)](https://appshunter.io/ios/app/bubblefill/id6742468046/reviews) |
| Number of ratings | 1 | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 183 MB | 8 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Gioi Pham](https://appshunter.io/developer/1611460616) | [MK Productions LLC](https://appshunter.io/developer/1372605906) |

## What reviewers say

### Troll brain

[App page](https://appshunter.io/ios/app/troll-brain-bobs-world/id1631468468)

Engage your mind with a collection of brain teasers and puzzles designed to challenge logic, memory, and problem-solving skills. This game offers a fun and humorous experience with new levels and colorful graphics for all ages.

**Highlights:** Brain teasers and puzzles, Logic and memory training, Problem-solving challenges, Creative thinking exercises, Colorful graphics and animations, New levels and quizzes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Bubble.Fill

[App page](https://appshunter.io/ios/app/bubblefill/id6742468046)

Tap and hold to inflate bubbles and cover the arena, but watch out for enemies trying to pop them. Utilize power-ups to overcome challenges and advance through endless levels. Enjoy fast-paced arcade fun with a global leaderboard.

**Highlights:** Tap and hold to inflate bubbles, Dodge enemy squares, Use power-ups like Freeze and Immunity, Progress through endless levels, Climb the global leaderboard, Receive friendly update notifications

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Color Schemes | $0.99 | one-time |
| Continue Playing | $0.99 | one-time |
| Fast Recharge | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Troll brain free?

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

### Is Bubble.Fill free?

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

### Which has better reviews, Troll brain or Bubble.Fill?

Troll brain and Bubble.Fill are both rated 5.0 out of 5 on the App Store, from 1 and 17 ratings respectively.

### Do Troll brain or Bubble.Fill have ads?

Both Troll brain and Bubble.Fill show ads.

### Which is updated more often, Troll brain or Bubble.Fill?

Troll brain ships an update weekly, and Bubble.Fill fortnightly. Most recently, Troll brain was updated on October 11, 2026 and Bubble.Fill on October 14, 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.*