# iFING Scanner vs Light Spectrometer Wavelength

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 (95 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.

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.

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 95 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.

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 22, 2026 respectively.

## The numbers

| Metric | iFING Scanner | Light Spectrometer Wavelength |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/ifing-scanner/id1593580342/reviews) | **[4.2 (95 ratings)](https://appshunter.io/ios/app/light-spectrometer-wavelength/id6450930820/reviews)** |
| Number of ratings | 5 | **95** |
| Positive reviews | **88.9% of reviews** | 72.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 43 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [winningi](https://appshunter.io/developer/1326712012) | [Contechity AB](https://appshunter.io/developer/1649290454) |

## What reviewers say

### iFING Scanner

[App page](https://appshunter.io/ios/app/ifing-scanner/id1593580342)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1장 또는 2장의 이미지 구매 | $1.99 | one-time |
| Palmprint x 1 | $1.99 | one-time |
| Finger x 2, Palm x 1 | $2.99 | one-time |
| Palmprint x 2 | $2.99 | one-time |
| Finger x 4, Palm x 1 | $2.99 | one-time |
| 3장 또는 4장의 이미지 구매 | $3.99 | one-time |
| Finger x 8, Palm x 1 | $4.99 | one-time |
| Finger x 4, Palm x 2 | $4.99 | one-time |
| 5장 또는 6장의 이미지 구매 | $5.99 | one-time |
| Finger x 6, Palm x 1 | $5.99 | one-time |
| Finger x 6, Palm x 2 | $5.99 | one-time |
| Finger x 8, Palm x 2 | $5.99 | one-time |
| 7장 또는 8장의 이미지 구매 | $7.99 | one-time |
| Finger x 10, Palm x 1 | $8.99 | one-time |
| 9장 또는 10장의 이미지 구매 | $9.99 | one-time |
| Finger x 10, Palm x 2 | $9.99 | one-time |


### Light Spectrometer Wavelength

[App page](https://appshunter.io/ios/app/light-spectrometer-wavelength/id6450930820)

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:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $0.99 | per month |
| Full access | $0.99 | per month |
| Full access | $4.99 | per year |
| Full access | $6.99 | one-time |


## Frequently asked 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 95 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 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*