Photo Protractor vs ADViSiON
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Photo Protractor
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.
- Measure angles from photos
- Display angles and radians
- Adjustable measurement lines
- Easy-to-use interface
- Take pictures for measurement
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分度器アプリです。【使い方】写真を撮ります。移動ボタンを押して、写真の測定部分を測定円の中心にスライドスライド。角度ボタン、始線ボタンで測定線をクルクル移動すれば角度とラジアンが表示されます。簡単でしょ。（＾＾）／ It is a protractor app. [How to use] it will take a picture. Press the Move button, and slide slide the measurement part of the photo in the center of the measuring circle. Angle button, you will see the angle and radian if twirl move the measuring line in the initial line button. It is easy. (^^) /
ADViSiON
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.
- 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
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ADViSiON is an APP that can view DVR and IPC from all over the world！ basic skills： 1. Stream Videos over WIFI or 3G 2. View up to 16 live video streams 3. Device management. 4. Snapshot and browse picture 5. Record and playback video 6. PTZ control
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Photo Protractor | ADViSiON |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (40 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 79.3% of reviews | — |
| Number of ratings | 40 — better | 1 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayumi Kato | 波 朱 |
Customer experience
Photo Protractor
ADViSiON
In-app purchases
Photo Protractor
No in-app purchases
ADViSiON
No in-app purchases
Questions
Is Photo Protractor free?
Is ADViSiON free?
Which has better reviews, Photo Protractor or ADViSiON?
Do Photo Protractor or ADViSiON have ads?
Which is updated more often, Photo Protractor or ADViSiON?
Other comparisons
