Comparison

Lumin+ vs Protractor°

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

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.

Highlights
  • Measure angles on paper
  • Measure angles between surfaces
  • Uses iPhone Duo's folding hinge
  • Record and save angle readings
  • Organize measurements by date
Features
Read 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

Lumin+4 screens
Protractor°4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Protractor° sells 1 one-off in-app purchase. Lumin+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Lumin+ versus Protractor°: the parameters behind the verdict, then further details
ParameterLumin+Protractor°
PriceFreeFree
Rating1.6 (7 ratings)5.0 (1 ratings) — better
Positive reviews14.3% of reviews—
Number of ratings7 — better1
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better26.0
Further details — not scored
Size31 MB13 MB
Age rating4+4+
DeveloperIfootage International (HK) LimitedJust2us Pte Ltd

In-app purchases

None

Lumin+

No in-app purchases

1 purchases

Protractor°

One-time1
  • Protractor Lifetime Access$3.99

Questions

Is Lumin+ free?
Lumin+ is free to download, with no in-app purchases.
Is Protractor° free?
Protractor° is free to download, with in-app purchases available.
Which has better reviews, Lumin+ or Protractor°?
Protractor° is rated higher. Lumin+ averages 1.6 out of 5 from 7 ratings, while Protractor° averages 5.0 from 1 ratings.
Do Lumin+ or Protractor° have ads?
Neither Lumin+ nor Protractor° shows ads.
Which is updated more often, Lumin+ or Protractor°?
Lumin+ ships an update every 2 months, and Protractor° every 2 days. Most recently, Lumin+ was updated on November 3, 2026 and Protractor° on October 31, 2026.

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