Protractor+ vs Stud Finder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Protractor+
Transform your device into a versatile angle measurement tool. Easily measure angles in both degrees and radians with an intuitive interface. Ideal for quick and precise angle readings.
- Angle measurement
- Degrees and radians
- Intuitive visual control
- Elegant design
- Pocket protractor functionality
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Protractor helps you to measure angles quickly and easily. This app turn your iPhone into a handy pocket protractor that can measure angles in both degrees and radians. Features: - Elegant design - Measure in degrees and radians - Intuitive visual control
Stud Finder
This utility app helps locate studs and metal behind walls using magnetic field detection. It also provides a precision level tool for accurate alignment and angle measurements, ideal for home improvement and professional projects.
- Magnetic stud and metal detection
- Precision level tool
- Angle measurement
- Intuitive interface
- Accurate results
- Multiple utilities in one app
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Stud Finder, AR Wall & Level Tool Find studs quickly and accurately using your phone. StudSpotter turns your device into a powerful stud finder, level, and wall planning tool. Whether you're mounting a TV, hanging shelves, installing cabinets, or tackling DIY projects, you'll have the tools you need to work with confidence. ## STUD FINDER Locate metal and studs hidden behind walls using your device's magnetic sensors. • Detect changes in the magnetic field in real time • Identify safe mounting locations • Easy-to-read gauge and simple calibration • Designed for home improvement and DIY projects ## AR WALL MODE Plan your wall with augmented reality. After locating a stud, mark it in AR and choose the stud spacing and width. StudSpotter will visualize where the remaining studs should be, helping you plan installations with greater confidence. Perfect for: • TV mounting • Shelves and cabinets • Wall panels • Home renovation projects ## PRECISION LEVEL Achieve accurate alignment with the built-in level tool. • Measure angles precisely • Level pictures, shelves, and appliances • Great for woodworking and construction projects ## WHY STUDSPOTTER? Simple and intuitive design Fast and accurate measurements Multiple tools in one app Designed for DIYers, homeowners, and professionals ## PERFECT FOR • Home improvement projects • Hanging pictures and shelves • TV mounting • Carpentry and woodworking • Installing cabinets • Construction and remodeling • Everyday leveling tasks Download StudSpotter today and bring precision to every project.
Screenshots
Verdict
The clearest difference is update cadence: Stud Finder at every 11 days against Protractor+'s every 2 months. Stud Finder also leads on monetization model (free vs free with in-app purchases). Protractor+'s advantage is ratings volume (10K vs 7) and review sentiment (15% vs 0%). On price, rating, 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. Protractor+ sells 1 one-off in-app purchase and Stud Finder sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Protractor+ holds the better App Store score, 4.1 against 3.9. That said, the two scores are not equally well evidenced: Protractor+ has 10K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 15% of Protractor+'s written reviews are positive against 0% of Stud Finder's.
Protractor+ ships an update every 2 months, Stud Finder every 11 days. The most recent releases landed on September 25, 2026 and August 19, 2026 respectively.
| Parameter | Protractor+ | Stud Finder |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (10K ratings) — better | 3.9 (7 ratings) |
| Positive reviews | 14.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 10K — better | 7 |
| Update frequency | Every 2 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.6 |
| Further details — not scored | ||
| Size | 21 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Tue Nguyen Minh | Volodymyr Budnichenko |
Customer experience
Protractor+
Stud Finder
Bugs and requests
Protractor+
Reported bugs
3 issues- Camera feature not working as expected
- Angle measurements not accurate
- Frequent app crashes
Requested features
3 requests- Ability to measure in degrees without upgrade
- Improved accuracy and responsiveness
- Removal of timeouts and paywalls
Stud Finder
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Protractor+
- Pro Features$1.99
Stud Finder
- Unlock Pro$0.99
Questions
Is Protractor+ free?
Is Stud Finder free?
Which has better reviews, Protractor+ or Stud Finder?
Do Protractor+ or Stud Finder have ads?
Which is updated more often, Protractor+ or Stud Finder?
Other comparisons
