Protractor (Angle measurement) vs Trig Instruments Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor (Angle measurement)
Measure angles of objects using your device's camera. This utility app acts as a digital protractor, allowing you to accurately determine angles in real-world scenarios. Perfect for when a physical protractor is unavailable.
- Camera-based angle measurement
- Digital protractor functionality
- Measure angles of objects
- Real-world angle determination
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You are there when you need a protractor? Here is the absence of a protractor, try using a protractor app. You can measure the angle of the object is reflected in the camera protractor. Try using a protractor protractor various apps, app.
Trig Instruments Toolbox
This utility app provides a collection of essential field tools, including a ratio to angle converter, inclinometer, tally counter, and protractor. It leverages your device's sensors for accurate estimations and calculations, reducing the need to carry multiple physical instruments.
- Ratio to Angle converter
- Inclinometer
- Tally counter
- Protractor
- Uses device sensors for accuracy
- New free tools added regularly
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Each tool is designed to be useful in the field, so you don't need to bring a pile of equipment and notes with you to do estimations and calculations. Taking advantage of your device's built in gyro, compass and camera, to give the most accurate results. The Trig Tool Box contains: • Ratio to Angle converter • Inclinometer • Tally counter • Protractor With more free tools being added all the time. Download now to keep this tool box in your back pocket - you never know when they will come in handy.
Screenshots
Verdict
The clearest difference is rating: Protractor (Angle measurement) at 3.6 against Trig Instruments Toolbox's 2.6. Protractor (Angle measurement) also leads on update cadence (every 5 weeks vs every 27 months) and review sentiment (68% vs 50%). Trig Instruments Toolbox's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support 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.
Protractor (Angle measurement) holds the better App Store score, 3.6 against 2.6. Both are backed by a comparable volume of ratings — 10 and 5 respectively. Written reviews point the same way: 68% of Protractor (Angle measurement)'s written reviews are positive against 50% of Trig Instruments Toolbox's.
Protractor (Angle measurement) ships an update every 5 weeks, Trig Instruments Toolbox every 27 months. The most recent releases landed on October 18, 2026 and October 7, 2026 respectively.
| Parameter | Protractor (Angle measurement) | Trig Instruments Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (10 ratings) — better | 2.6 (5 ratings) |
| Positive reviews | 68.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 10 — better | 5 |
| Update frequency | Every 5 weeks — better | Every 27 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | Stevens Marketing Limited |
Customer experience
Protractor (Angle measurement)
Trig Instruments Toolbox
Bugs and requests
Protractor (Angle measurement)
Reported bugs
8 issues- Camera is always blurry
- Ads cover buttons
- App is a ghost app, cannot open
- Time limit makes it unusable
- Measures only in radians (free)
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- Protractor over camera view, no needle/indication
- App is difficult to use
- Hard to hold still without tripod
Requested features
10 requests- Ability to freeze image
- Ability to use photos for measurement
- Upload a still image and overlay protractor
- Improve accuracy with shaky hands
- Add option to take a picture and measure
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- Stabilize the camera
- Make numbers easier to read
- Remove time limit on free version
- Allow measurement in degrees for free
- Delete purchase history
Trig Instruments Toolbox
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor (Angle measurement)
No in-app purchases
Trig Instruments Toolbox
No in-app purchases
Questions
Is Protractor (Angle measurement) free?
Is Trig Instruments Toolbox free?
Which has better reviews, Protractor (Angle measurement) or Trig Instruments Toolbox?
Do Protractor (Angle measurement) or Trig Instruments Toolbox have ads?
Which is updated more often, Protractor (Angle measurement) or Trig Instruments Toolbox?
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