# 营销罗盘 vs Photo Protractor AngleWise

The clearest difference is in-app purchases: 营销罗盘 at none against Photo Protractor AngleWise's 1. 营销罗盘 also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Photo Protractor AngleWise sells 1 one-off in-app purchase. 营销罗盘 asks for nothing beyond the download.

营销罗盘 ships an update every 2 weeks, Photo Protractor AngleWise every 8 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 营销罗盘 | Photo Protractor AngleWise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/photo-protractor-anglewise/id6760904927/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 12 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [海洋 杜](https://appshunter.io/developer/1506749537) | [佳辰 汪](https://appshunter.io/developer/1872459075) |

## What reviewers say

### 营销罗盘

[App page](https://appshunter.io/ios/app/id1565124223)

**Features:** macOS Compatibility

**In-app purchases:** none


### Photo Protractor AngleWise

[App page](https://appshunter.io/ios/app/photo-protractor-anglewise/id6760904927)

Measure angles from photos by aligning reference lines. Capture or import images, then instantly read angles and their supplements. Save annotated images with notes for field work or geometry references.

**Highlights:** Photo-based angle measurement, Camera capture and photo import, Manual line adjustment, Note overlay on exported images, Surface leveling and inclination, On-device reading records

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $4.99 | one-time |


## Frequently asked questions

### Is 营销罗盘 free?

营销罗盘 is free to download, with no in-app purchases.

### Is Photo Protractor AngleWise free?

Photo Protractor AngleWise is free to download, with in-app purchases available.

### Do 营销罗盘 or Photo Protractor AngleWise have ads?

Neither 营销罗盘 nor Photo Protractor AngleWise shows ads.

### Which is updated more often, 营销罗盘 or Photo Protractor AngleWise?

营销罗盘 ships an update every 2 weeks, and Photo Protractor AngleWise every 8 days. Most recently, 营销罗盘 was updated on November 7, 2026 and Photo Protractor AngleWise on October 31, 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.*