# Bullet Fusion vs Trigger Up

The clearest difference is review sentiment: Bullet Fusion at 29% against Trigger Up's 3%. Bullet Fusion also leads on rating (2.1 vs 1.9) and update cadence (every 4 days vs every 2 weeks). Trigger Up's advantage is ratings volume (42 vs 7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Bullet Fusion sells 1 one-off in-app purchase and Trigger Up sells 11 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Bullet Fusion holds the better App Store score, 2.1 against 1.9. That said, the two scores are not equally well evidenced: Trigger Up has 42 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 29% of Bullet Fusion's written reviews are positive against 3% of Trigger Up's.

Bullet Fusion ships an update every 4 days, Trigger Up every 2 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Bullet Fusion | Trigger Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.1 (7 ratings)](https://appshunter.io/ios/app/bullet-fusion/id6739496508/reviews)** | [1.9 (42 ratings)](https://appshunter.io/ios/app/trigger-up/id6744708061/reviews) |
| Number of ratings | 7 | **42** |
| Positive reviews | **28.6% of reviews** | 3.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 278 MB | 368 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 12+ |
| Developer | [Yso Corp](https://appshunter.io/developer/659815325) | [Rollic Games](https://appshunter.io/developer/1452111779) |

## What reviewers say

### Bullet Fusion

[App page](https://appshunter.io/ios/app/bullet-fusion/id6739496508)

Collect and merge bullets to enhance your firepower and engage in intense combat. Maneuver strategically to maximize your attack capabilities and defeat numerous enemies with a gatling-style weapon.

**Highlights:** Collect and merge bullets, Increase firepower, Strategic maneuvering, Gatling-style weapon combat, Fight multiple enemies

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### Trigger Up

[App page](https://appshunter.io/ios/app/trigger-up/id6744708061)

Experience an action-packed run-and-gun adventure where your weapon evolves as you play. Dash through levels, collect upgrades, and blast enemies to unlock powerful new firepower. The longer and better you run, the stronger your weapon becomes.

**Highlights:** Evolving weapon system, Run-and-gun gameplay, Collect upgrades, Blast enemies and obstacles, Action-packed levels

**Features:** macOS Compatibility

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Bundle | $0.99 | one-time |
| Small Energy Pack | $1.99 | one-time |
| Special Offer - Offer 1 | $1.99 | one-time |
| Small Gem Pack | $2.99 | one-time |
| Energy Bank | $4.99 | one-time |
| World Bundle | $4.99 | one-time |
| Medium Energy Pack | $4.99 | one-time |
| No Ads | $6.99 | one-time |
| Energy Bundle | $8.99 | one-time |
| Battle Pass | $9.99 | one-time |
| Large Energy Pack | $14.99 | one-time |

**What reviewers like**

- 👍 Fun and well-made game
- 👍 Enjoying the game

**What reviewers complain about**

- 🐛 Game crashes on startup
- 🐛 Game freezes
- 🐛 Game glitches after level completion
- 🐛 Game won't open
- 🐛 Game unresponsive after update

**Reported bugs**

- Game crashes on opening
- Game freezes and loses lives
- Game crashes on startup
- Game crashes on opening splash screens
- Game glitches and gets stuck on trigger up icon page

**Requested features**

- Add more worlds
- Fix bugs and glitches
- Remove energy system


## Frequently asked questions

### Is Bullet Fusion free?

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

### Is Trigger Up free?

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

### Which has better reviews, Bullet Fusion or Trigger Up?

Bullet Fusion is rated higher. Bullet Fusion averages 2.1 out of 5 from 7 ratings, while Trigger Up averages 1.9 from 42 ratings.

### Do Bullet Fusion or Trigger Up have ads?

Both Bullet Fusion and Trigger Up show ads.

### Which is updated more often, Bullet Fusion or Trigger Up?

Bullet Fusion ships an update every 4 days, and Trigger Up every 2 weeks. Most recently, Bullet Fusion was updated on October 24, 2026 and Trigger Up on October 22, 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.*