# 放炮罚计算器 vs QR Kit

The clearest difference is in-app purchases: 放炮罚计算器 at none against QR Kit's 7. 放炮罚计算器 also leads on iOS requirement (15.0 vs 18.0). QR Kit's advantage is update cadence (every 9 days vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. QR Kit sells 7 in-app purchases, starting at $0.99 per month. 放炮罚计算器 asks for nothing beyond the download.

放炮罚计算器 ships an update every 6 months, QR Kit every 9 days. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 放炮罚计算器 | QR Kit |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 9 days** |
| Size | 22 MB | 17 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Loudi LouYue Software Development Co., Ltd.](https://appshunter.io/developer/866028714) | [Can Bi](https://appshunter.io/developer/1631723329) |

## What reviewers say

### 放炮罚计算器

[App page](https://appshunter.io/ios/app/id866028711)

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

**In-app purchases:** none


### QR Kit

[App page](https://appshunter.io/ios/app/qr-kit-code-scanner-and-maker/id6760836707)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QR Kit Pro Monthly | $0.99 | per month |
| QR Kit Pro Annual | $4.99 | per year |
| Coffee | $1.99 | one-time |
| Lunch | $4.99 | one-time |
| QR Kit Pro Lifetime | $7.99 | one-time |
| Dinner | $12.99 | one-time |
| Feast | $24.99 | one-time |


## Frequently asked questions

### Is 放炮罚计算器 free?

放炮罚计算器 is free to download, with no in-app purchases.

### Is QR Kit free?

QR Kit is free to download, with in-app purchases available.

### Do 放炮罚计算器 or QR Kit have ads?

Neither 放炮罚计算器 nor QR Kit shows ads.

### Which is updated more often, 放炮罚计算器 or QR Kit?

放炮罚计算器 ships an update every 6 months, and QR Kit every 9 days. Most recently, 放炮罚计算器 was updated on October 9, 2026 and QR Kit on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*