Lumin+ vs Protractor°
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lumin+
This app offers comprehensive control for professional lighting equipment, allowing users to manage individual or multiple light sets. It supports various color modes, effects, and presets, providing a convenient tool for photographers and videographers to create custom lighting arrangements.
- Control individual and multiple light sets
- Support for CCT, HSI, RGBW, XY color modes
- GEL color paper simulation
- Special effects and music synchronization
- Lighting pre-set functions
- Professional lighting support for creators
Read full descriptionHide full description
The Lumin+ App connects to mobile devices and controls individual and multiple sets of iFootage lights. The App provides complete control and storage of multiple professional lighting sets, applications and functions and supports colour temperature CCT, HSI, RGBW, XY colour co-ordinates, GEL colour paper, special effects, music and lighting pre-set functions. The Lumin App provides a simple and convenient professional support to photographers and videographers helping them to create and control lighting arrangements for a variety of scenarios and situations.
Protractor°
This app transforms your iPhone Duo into a digital protractor. Measure angles on paper or between surfaces by simply folding the device to match the desired angle and reading the degrees. Save and organize your measurements for later use.
- Measure angles on paper
- Measure angles between surfaces
- Uses iPhone Duo's folding hinge
- Record and save angle readings
- Organize measurements by date
Read full descriptionHide full description
Use your iPhone Duo as a protractor. Fold it to match an angle and read the degrees. Requires iPhone Duo with iOS 27.1 or later. Measurement uses the phone's folding hinge and isn't available on other devices. MEASURE ON PAPER Stand the phone on its bottom edges and line up each edge with a line on the page. Open or close the fold until both edges match. CHECK TWO SURFACES Rest each half of the phone against a surface and fold it to fit the angle where they meet. Read the angle as you adjust it. KEEP YOUR READINGS Tap Record when you're ready. History groups your saved angles by day and shows the time of each reading. Delete individual readings or clear them all. Next time you need a protractor, unfold your phone.
Screenshots
Verdict
The clearest difference is rating: Protractor° at 5.0 against Lumin+'s 1.6. Protractor° also leads on update cadence (every 2 days vs every 2 months). Lumin+'s advantage is in-app purchases (none vs 1) and ratings volume (7 vs 1). On price, ads and monetization model 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. Lumin+ asks for nothing beyond the download.
Protractor° holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: Lumin+ has 7 ratings behind it against 1, so its average is the more settled of the two.
Lumin+ ships an update every 2 months, Protractor° every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Lumin+ | Protractor° |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 14.3% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 2 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 31 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Ifootage International (HK) Limited | Just2us Pte Ltd |
In-app purchases
Lumin+
No in-app purchases
Protractor°
- Protractor Lifetime Access$3.99









