# Photo Protractor vs ADViSiON

The clearest difference is rating: ADViSiON at 5.0 against Photo Protractor's 4.0. Photo Protractor's advantage is ratings volume (40 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ADViSiON holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Photo Protractor has 40 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Photo Protractor | ADViSiON |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (40 ratings)](https://appshunter.io/ios/app/photo-protractor/id705832869/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/advision/id1204725240/reviews)** |
| Number of ratings | **40** | 1 |
| Positive reviews | 79.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 11 MB | 49 MB |
| Requires iOS | 8.0 | **7.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [波 朱](https://appshunter.io/developer/1116587054) |

## What reviewers say

### Photo Protractor

[App page](https://appshunter.io/ios/app/photo-protractor/id705832869)

This app functions as a digital protractor, allowing users to measure angles and radians directly from photos. Simply take a picture, position the measurement area, and adjust the lines to get precise readings. It's an easy-to-use tool for quick angle calculations.

**Highlights:** Measure angles from photos, Display angles and radians, Adjustable measurement lines, Easy-to-use interface, Take pictures for measurement

**In-app purchases:** none


### ADViSiON

[App page](https://appshunter.io/ios/app/advision/id1204725240)

Access and view live video streams from DVRs and IPC cameras globally. The app allows for managing devices, capturing snapshots, recording, and playing back video footage, with support for up to 16 simultaneous streams.

**Highlights:** Stream videos over Wi-Fi or 3G, View up to 16 live video streams, Device management, Snapshot and picture browsing, Record and playback video, PTZ control

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Photo Protractor free?

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

### Is ADViSiON free?

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

### Which has better reviews, Photo Protractor or ADViSiON?

ADViSiON is rated higher. Photo Protractor averages 4.0 out of 5 from 40 ratings, while ADViSiON averages 5.0 from 1 ratings.

### Do Photo Protractor or ADViSiON have ads?

Neither Photo Protractor nor ADViSiON shows ads.

### Which is updated more often, Photo Protractor or ADViSiON?

Photo Protractor ships an update every 2 months, and ADViSiON every 2 months. Most recently, Photo Protractor was updated on October 24, 2026 and ADViSiON on October 5, 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.*