# Balls Rollerz Idle 3D Puzzle vs Bullet Train!

The clearest difference is ads: Balls Rollerz Idle 3D Puzzle at none against Bullet Train!'s shown. Balls Rollerz Idle 3D Puzzle also leads on review sentiment (27% vs 11%) and rating (4.6 vs 4.3). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Balls Rollerz Idle 3D Puzzle sells 7 one-off in-app purchases and Bullet Train! sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Balls Rollerz Idle 3D Puzzle holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Balls Rollerz Idle 3D Puzzle has 5.8K ratings behind it against 779, so its average is the more settled of the two. Written reviews point the same way: 27% of Balls Rollerz Idle 3D Puzzle's written reviews are positive against 11% of Bullet Train!'s.

Balls Rollerz Idle 3D Puzzle ships an update every 10 days, Bullet Train! weekly. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Balls Rollerz Idle 3D Puzzle | Bullet Train! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5.8K ratings)](https://appshunter.io/ios/app/balls-rollerz-idle-3d-puzzle/id1492082811/reviews)** | [4.3 (779 ratings)](https://appshunter.io/ios/app/bullet-train/id6450603663/reviews) |
| Number of ratings | **5.8K** | 779 |
| Positive reviews | **26.6% of reviews** | 11.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 279 MB | 177 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Gismart](https://appshunter.io/developer/666830030) | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) |

## What reviewers say

### Balls Rollerz Idle 3D Puzzle

[App page](https://appshunter.io/ios/app/balls-rollerz-idle-3d-puzzle/id1492082811)

Tap to control rolling balls and build mechanisms to guide them to their destination. Earn coins to upgrade your contraptions and become a ball tycoon in this idle puzzle game.

**Highlights:** Tap-based gameplay, Build custom ball paths, Earn coins for upgrades, Idle progression, Mechanism challenges, Ball tycoon simulation

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Gems | $0.99 | one-time |
| VIP Sale on Discount! | $0.99 | one-time |
| VIP Sale! | $1.99 | one-time |
| No interstitials! | $2.99 | one-time |
| Permanent x3 income boost | $3.99 | one-time |
| 550 Gems | $4.99 | one-time |
| 2500 Gem | $19.99 | one-time |

**What reviewers like**

- 🚀 Unique and satisfying gameplay
- 👍 Relaxing and mindless experience
- 💡 Interesting concept

**What reviewers complain about**

- 🤬 Excessive and intrusive ads
- 🔒 Forced ad-watching to progress
- 🐛 Bugs and crashes
- ⏱️ Slow progression and upgrades
- 🔋 High ad frequency drains battery

**Reported bugs**

- Game freezes and crashes
- Upgrade buttons don't work
- Progress resets after updates

**Requested features**

- More levels and complexity
- Ability to purchase upgrades without ads
- Sandbox mode
- Custom skins and tracks
- Less restrictive progression


### Bullet Train!

[App page](https://appshunter.io/ios/app/bullet-train/id6450603663)

Engage in a thrilling arcade experience where you upgrade your ammunition to inflict maximum damage on enemies. Earn coins by destroying foes to enhance your bullet belt and firing speed. Become a master of destruction with increasingly powerful projectiles.

**Highlights:** Extend bullet belt, Upgrade ammo, Inflict more damage, Destroy enemies, Increase firing speed, Earn coins

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drone | $1.99 | one-time |
| Captain | $2.99 | one-time |
| Sergeant | $2.99 | one-time |
| Flamethrower | $2.99 | one-time |
| Grenade | $2.99 | one-time |
| No Ads | $3.99 | one-time |
| Spy | $3.99 | one-time |
| Air strike | $3.99 | one-time |
| President | $4.99 | one-time |
| Ammo pack | $4.99 | one-time |

**What reviewers like**

- 👍 Good time waster
- 🚀 Pretty good game

**What reviewers complain about**

- 🐛 Bug that crashes game
- 🐛 Game freeze
- 🔍 Forced ads
- 🔍 Terrible ad push
- 🔍 Ads every minute

**Reported bugs**

- Missions trophy crashes the game
- Game freezes when clicking on missions
- Paid for no ads but still have ads
- Free bonus ad clock not working properly

**Requested features**

- Need more guns and harder enemies
- Fix the free bonus ad clock


## Frequently asked questions

### Is Balls Rollerz Idle 3D Puzzle free?

Balls Rollerz Idle 3D Puzzle is free to download, with in-app purchases available.

### Is Bullet Train! free?

Bullet Train! is free to download, with in-app purchases available.

### Which has better reviews, Balls Rollerz Idle 3D Puzzle or Bullet Train!?

Balls Rollerz Idle 3D Puzzle is rated higher. Balls Rollerz Idle 3D Puzzle averages 4.6 out of 5 from 5.8K ratings, while Bullet Train! averages 4.3 from 779 ratings.

### Do Balls Rollerz Idle 3D Puzzle or Bullet Train! have ads?

Bullet Train! shows ads; Balls Rollerz Idle 3D Puzzle does not.

### Which is updated more often, Balls Rollerz Idle 3D Puzzle or Bullet Train!?

Balls Rollerz Idle 3D Puzzle ships an update every 10 days, and Bullet Train! weekly. Most recently, Balls Rollerz Idle 3D Puzzle was updated on October 29, 2026 and Bullet Train! on October 24, 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.*