Protractor (Angle measurement) vs 99one
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.
99one
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99one connects the public to information about mental health programs and services. Users have access to articles, resources, and events related to mental health, wellness, culture, and belonging. Creating an account is free! The general public, staff and family members, are encouraged to download the app to keep up-to-date with mental health articles, community and volunteer programming opportunities in an effort to improve everyone’s overall mental health. We’re all in this together! DISCLAIMER: Users should seek advice from medical professional(s) in addition to using this app before making medical decisions.
Screenshots
Verdict
The clearest difference is ads: 99one at none against Protractor (Angle measurement)'s shown. Protractor (Angle measurement)'s advantage is update cadence (every 5 weeks vs every 42 months) and iOS requirement (13.0 vs 26.0). On price, 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) ships an update every 5 weeks, 99one every 42 months. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.
| Parameter | Protractor (Angle measurement) | 99one |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) — better | — |
| Positive reviews | 68.1% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 weeks — better | Every 42 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | First Response Mental Health |
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
99one
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor (Angle measurement)
No in-app purchases
99one
No in-app purchases
Questions
Is Protractor (Angle measurement) free?
Is 99one free?
Do Protractor (Angle measurement) or 99one have ads?
Which is updated more often, Protractor (Angle measurement) or 99one?
Other comparisons
