Comparison

iFING Scanner vs Light Spectrometer Wavelength

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

Head to head
About

iFING Scanner

Capture and process fingerprint and palmprint images using your mobile device's camera. This app offers touchless biometric scanning with features like measurement and perspective correction, producing high-resolution templates. Images are stored securely and can be exported at your discretion.

Highlights
  • Touchless fingerprint and palmprint scanning
  • Finger measurement (Ruler) function
  • Perspective correction (Flattening)
  • ISO standard template creation
  • Image capture and preview
  • Secure image export
Features
Read full description

Real fingerprint/palmprint scanner using touchless biometrics technology. * It provides a finger real measurement function (Ruler) and a perspective correction function (Flattening) to provide the world's first ISO standard template of 500dpi with touchless fingerprint scanner.(Patent technology) [ iFING : Touchless Fingerprint/Palmprint Scanner like Snapshot] This app takes pictures of your fingers/palms with your mobile device's built-in camera, produces fingerprint/palmprint images, but does not collect any other personal information. * Capture and Preview(Thumbnail) of fingerprint/palmprint images is free. Users can take pictures of other people's fingerprints/palmprint, but the app does not know who provides the fingerprint/palmprint information. The fingerprint/palmprint image is your exclusive property and no party other than you has legal access to the data stored in the app. Exporting fingerprint/palmprint images via e-mail, social media, etc. is at the user's complete and exclusive discretion (Set the file access password before sending out the fingerprint/palmprint information). The quality and clarity of the fingerprint/palmprint image depends on a number of situations, including skin characteristics and shooting conditions. [ Export Function of Fingerprint/Palmprint to SNS, e-mail etc (Price Info.) ] - Fingerprint x 2 piece : 2200(KRW) ≒ 1.9(USD) - Palmprint x 1 piece : 3300(KRW) ≒ 2.9(USD) * Payment will be made before sharing the collected fingerprint/palmprint information. Price could be changed along the exchange rate.

About

Light Spectrometer Wavelength

This application analyzes light to determine its dominant wavelength in nanometers, frequency in terahertz, and period length in femtoseconds. It provides real-time measurements and allows users to save their findings with notes. The app is designed for measuring colored light sources.

Highlights
  • Measures dominant wavelength (nm)
  • Measures frequency (THz)
  • Measures period length (fs)
  • Real-time measurement
  • Save measurements with notes
  • Optional calibration
Features
Read full description

Measures light spectrum to determine the dominant wavelength in nm, frequency in THz and period length in fs. DOMINANT WAVELENGTH Dominant wavelength is a concept commonly used in the field of color science and perception. It refers to the wavelength of light that appears most prominent or dominant in a given color mixture or light source. In other words, it is the wavelength that our eyes perceive as the primary color in a mixture of different wavelengths. For light with only one wavelength, such as the light from a colored LED, the dominant wavelength corresponds to the wavelength of that light. KEY FEATURES • High accuracy • Real-time measurement • Measures light wavelength in nanometers (nm) • Measures light frequency in terahertz (Thz) • Measures light period length in femtoseconds (fs) • Easy to use • Save measurements with notes • Supports 40 languages, including english • Optional calibration for enhanced precision MEASURING 1. Find a white surface, such as a plain piece of white paper 2. Point your camera at the surface illuminated by your target light source 3. The app gives you accurate measurements in real-time LIMITATIONS Smartphone cameras have limitations when it comes to distinguishing between different very short, or very long wavelengths. More specifically, on many devices the accuracy below 465 nm and above 610 nm is very limited. This is due to the physical camera sensors in the devices. An automatic warning appears on the screen for these short and long wavelengths. WHITE LIGHT Note that is not meaningful to measure the dominant wavelength of white light as white light consists of a wide range of wavelengths, with no wavelength dominating. This app is made for measuring colored light. If you are interested in determining the color temperature of white light, please instead use our popular White Balance Kelvin Meter app. COLOR OF SURFACES If you want to measure the color of a surface or material, rather than of light, please instead use our popular Colorimeter Camera Color Meter app. Privacy Policy, https://spectrometer.contechity.com/pp.html End User License Agreement, https://spectrometer.contechity.com/eula.html CONTACT I value your feedback. Email me at apps@contechity.com with any suggestions or questions. Download the Spectrometer now!

Screenshots

iFING Scanner4 screens
Light Spectrometer Wavelength4 screens

Verdict

The call

The clearest difference is rating: Light Spectrometer Wavelength at 4.2 against iFING Scanner's 2.6. Light Spectrometer Wavelength also leads on ratings volume (94 vs 5). iFING Scanner's advantage is review sentiment (89% vs 73%) and iOS requirement (13.0 vs 15.0). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iFING Scanner sells 16 one-off in-app purchases and Light Spectrometer Wavelength sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Light Spectrometer Wavelength holds the better App Store score, 4.2 against 2.6. That said, the two scores are not equally well evidenced: Light Spectrometer Wavelength has 94 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 89% of iFING Scanner's written reviews are positive against 73% of Light Spectrometer Wavelength's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

iFING Scanner ships an update every 3 months, Light Spectrometer Wavelength every 2 months. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
iFING Scanner versus Light Spectrometer Wavelength: the parameters behind the verdict, then further details
ParameteriFING ScannerLight Spectrometer Wavelength
PriceFreeFree
Rating2.6 (5 ratings)4.2 (94 ratings) — better
Positive reviews88.9% of reviews — better72.7% of reviews
Number of ratings594 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size29 MB43 MB
Age rating4+4+
DeveloperwinningiContechity AB

Customer experience

iFING Scanner

All ratings5 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews54 reviews
Positive88.9%
Neutral3.7%
Negative7.4%

Light Spectrometer Wavelength

All ratings94 ratings
Positive80.9%
Neutral3.2%
Negative16.0%
Written reviews33 reviews
Positive72.7%
Neutral3.0%
Negative24.2%

In-app purchases

16 purchases

iFING Scanner

One-time16
  • 1장 또는 2장의 이미지 구매$1.99
  • Palmprint x 1$1.99
  • Finger x 2, Palm x 1$2.99
Show 13 more
  • Palmprint x 2$2.99
  • Finger x 4, Palm x 1$2.99
  • 3장 또는 4장의 이미지 구매$3.99
  • Finger x 8, Palm x 1$4.99
  • Finger x 4, Palm x 2$4.99
  • 5장 또는 6장의 이미지 구매$5.99
  • Finger x 6, Palm x 1$5.99
  • Finger x 6, Palm x 2$5.99
  • Finger x 8, Palm x 2$5.99
  • 7장 또는 8장의 이미지 구매$7.99
  • Finger x 10, Palm x 1$8.99
  • 9장 또는 10장의 이미지 구매$9.99
  • Finger x 10, Palm x 2$9.99
4 purchases

Light Spectrometer Wavelength

Subscriptions3
  • Full Access7 Days trial$0.991 Month
  • Full access14 Days trial$0.991 Month
  • Full access$4.991 Year
One-time1
  • Full access4 variants$6.99

Questions

Is iFING Scanner free?
iFING Scanner is free to download, with in-app purchases available.
Is Light Spectrometer Wavelength free?
Light Spectrometer Wavelength is free to download, with in-app purchases available.
Which has better reviews, iFING Scanner or Light Spectrometer Wavelength?
Light Spectrometer Wavelength is rated higher. iFING Scanner averages 2.6 out of 5 from 5 ratings, while Light Spectrometer Wavelength averages 4.2 from 94 ratings.
Do iFING Scanner or Light Spectrometer Wavelength have ads?
Neither iFING Scanner nor Light Spectrometer Wavelength shows ads.
Which is updated more often, iFING Scanner or Light Spectrometer Wavelength?
iFING Scanner ships an update every 3 months, and Light Spectrometer Wavelength every 2 months. Most recently, iFING Scanner was updated on October 21, 2026 and Light Spectrometer Wavelength on October 13, 2026.

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