# 投影计算器 vs Masterbezel

The clearest difference is price: Masterbezel at Free against 投影计算器's $6.99. Masterbezel also leads on update cadence (every 4 days vs every 30 months) and device support (4 vs 2). 投影计算器's advantage is iOS requirement (12.0 vs 15.1). On ads and in-app purchases there is nothing between them.

Masterbezel is free to download; 投影计算器 costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

投影计算器 ships an update every 30 months, Masterbezel every 4 days. The most recent releases landed on January 4, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 投影计算器 | Masterbezel |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/masterbezel/id1572627111/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 4 days** |
| Monetization | — | Paid |
| Size | 2 MB | 422 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [方军 杨](https://appshunter.io/developer/1116000525) | [Hangzhou Qin Technology Inc.](https://appshunter.io/developer/1231926599) |

## What reviewers say

### 投影计算器

[App page](https://appshunter.io/ios/app/id1116000526)

**Features:** macOS Compatibility

**In-app purchases:** none


### Masterbezel

[App page](https://appshunter.io/ios/app/masterbezel/id1572627111)

Create professional-looking device mockups from your screenshots. This tool supports over 50 Apple device models and offers high-resolution output. It's simple to use, privacy-focused, and works offline.

**Highlights:** Create device mockups, Supports 50+ Apple devices, High-resolution output, Simple drag-and-drop interface, Offline functionality, Privacy-focused

**In-app purchases:** none


## Frequently asked questions

### Is 投影计算器 free?

投影计算器 costs $6.99, with no in-app purchases.

### Is Masterbezel free?

Masterbezel is free to download, with no in-app purchases.

### Do 投影计算器 or Masterbezel have ads?

Neither 投影计算器 nor Masterbezel shows ads.

### Which is updated more often, 投影计算器 or Masterbezel?

投影计算器 ships an update every 30 months, and Masterbezel every 4 days. Most recently, 投影计算器 was updated on January 4, 2026 and Masterbezel 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.*