# TrustBox Backup vs Protractor for Angle Measuring

The clearest difference is in-app purchases: TrustBox Backup at none against Protractor for Angle Measuring's 5. TrustBox Backup also leads on ads (none vs shown) and iOS requirement (12.3 vs 16.6). Protractor for Angle Measuring's advantage is update cadence (every 2 weeks vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Protractor for Angle Measuring sells 5 in-app purchases, starting at $0.99 per 7 days. TrustBox Backup asks for nothing beyond the download.

TrustBox Backup ships an update every 7 months, Protractor for Angle Measuring every 2 weeks. The most recent releases landed on September 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | TrustBox Backup | Protractor for Angle Measuring |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (1K ratings)](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160/reviews)** |
| Number of ratings | — | **1K** |
| Positive reviews | — | 49.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 112 MB |
| Requires iOS | **12.3** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Infrascale, Inc.](https://appshunter.io/developer/328057516) | [AppLiks Sp. z O.O.](https://appshunter.io/developer/1804335622) |

## What reviewers say

### TrustBox Backup

[App page](https://appshunter.io/ios/app/trustbox-backup/id1150509999)

**Features:** macOS Compatibility

**In-app purchases:** none


### Protractor for Angle Measuring

[App page](https://appshunter.io/ios/app/protractor-for-angle-measuring/id6474609160)

Transform your iPhone into a precision angle measuring tool. Easily measure angles in real-time using touch or camera modes, and even analyze angles in existing photos. Customize your tools for a seamless experience.

**Highlights:** Real-time angle measurement, Touch and camera modes, Measure angles in photos, Simultaneous unlimited angle measurement, Tool color customization, Plumb bob pendulum for tilt

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $0.99 | per 7 days |
| Weekly Access with Trial | $1.99 | per 7 days |
| Weekly Access | $1.99 | per 7 days |
| Yearly Access | $3.99 | per year |
| Yearly Access | $4.99 | per year |

**What reviewers like**

- 👍 Useful for surveying and measuring angles
- 💡 Interesting use of camera to overlay protractor
- 👍 Helps with specific use cases like golf setup
- 👍 Provides a clutter-free protractor experience

**What reviewers complain about**

- 🐛 Difficulty using the protractor tool and angle measurement
- 🐛 Inability to zoom in/out when measuring angles in photos
- 🐛 Inaccurate angle measurements in some cases

**Reported bugs**

- Protractor tool is hard to use and requires multiple tries
- Angle measurements do not match real-world angles

**Requested features**

- Add more instructions and guidance for using the protractor tool
- Improve the zoom functionality when measuring angles in photos
- Enhance the accuracy of angle measurements


## Frequently asked questions

### Is TrustBox Backup free?

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

### Is Protractor for Angle Measuring free?

Protractor for Angle Measuring is free to download, with in-app purchases available.

### Do TrustBox Backup or Protractor for Angle Measuring have ads?

Protractor for Angle Measuring shows ads; TrustBox Backup does not.

### Which is updated more often, TrustBox Backup or Protractor for Angle Measuring?

TrustBox Backup ships an update every 7 months, and Protractor for Angle Measuring every 2 weeks. Most recently, TrustBox Backup was updated on September 26, 2026 and Protractor for Angle Measuring on October 14, 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.*