# Biu Gun vs papa空气枪

The clearest difference is review sentiment: papa空气枪 at 100% against Biu Gun's 43%. Biu Gun's advantage is in-app purchases (none vs 4). On price, update cadence, ads and monetization model there is nothing between them.

Biu Gun costs $0.99 and papa空气枪 $0.99 up front. papa空气枪 sells 4 one-off in-app purchases. Biu Gun asks for nothing beyond the download.

Biu Gun ships an update every 3 weeks, papa空气枪 every 2 weeks. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Biu Gun | papa空气枪 |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/biu-gun/id6740190367/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 38 MB | 118 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 12+ | 12+ |
| Developer | [Haijian Yan](https://appshunter.io/developer/1767976220) | [CHUANGLONG CENTURY SCIENCE AND TECHNOLOGY DEVELOPMENT CO.,LIMITED](https://appshunter.io/developer/1788250434) |

## What reviewers say

### Biu Gun

[App page](https://appshunter.io/ios/app/biu-gun/id6740190367)

Transform your devices into virtual firearms with realistic 3D models and immersive sound effects. Engage in thrilling shooting simulations using intuitive motion controls. Explore a vast arsenal of weapons for an authentic experience.

**Highlights:** Realistic 3D weapon models, Extensive weapon collection, Dynamic shooting experience, Immersive sound effects, Apple Watch control support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### papa空气枪

[App page](https://appshunter.io/ios/app/papa/id6740605431)

Experience realistic sound effects of air guns, cannons, space weapons, and fireworks. Enjoy festive atmospheres and exciting battles with simple shake-to-play controls, all in an environmentally friendly and safe way.

**Highlights:** Realistic air gun sound effects, Air cannon sound effects, Sci-fi space weapon sounds, Firework and firecracker sounds, Shake to trigger sounds, Environmentally friendly and safe

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 解锁一个类型 | $0.99 | one-time |
| 解锁两个类型 | $1.99 | one-time |
| 解锁三个类型 | $2.99 | one-time |
| 解锁四个类型 | $2.99 | one-time |


## Frequently asked questions

### Is Biu Gun free?

Biu Gun costs $0.99, with no in-app purchases.

### Is papa空气枪 free?

papa空气枪 costs $0.99, and also offers in-app purchases.

### Do Biu Gun or papa空气枪 have ads?

Neither Biu Gun nor papa空气枪 shows ads.

### Which is updated more often, Biu Gun or papa空气枪?

Biu Gun ships an update every 3 weeks, and papa空气枪 every 2 weeks. Most recently, Biu Gun was updated on November 12, 2026 and papa空气枪 on November 4, 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.*