Comparison

Light Spectrometer Wavelength vs Power VIP

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

Head to head
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!

About

Power VIP

Features
Read full description

Power VIP es la app para clientes VIP de Power Aquaculture. Lleva el control de tu acuario marino desde el móvil y tenlo todo en un mismo sitio: las mediciones, las gráficas, tus análisis y la tienda. QUÉ PUEDES HACER • Registrar parámetros en segundos. Apunta KH, calcio, magnesio, nitratos, fosfatos, fósforo y el resto, con un calendario cómodo para elegir fecha y hora. Si mides fósforo o fosfato, la app rellena el otro automáticamente. • Ver la evolución. Una gráfica por parámetro con tu rango ideal marcado, y puedes ajustar ese rango acuario por acuario. • Varios acuarios. Cada uno con su foto, su rutina y sus rangos. • Diagnóstico de plagas. Abre un caso, sube fotos desde la cámara y recibe una pauta de tratamiento con los productos indicados. • Análisis ICP. Consulta tus informes y sube los nuevos desde el móvil. • Calculadoras. Salinidad, dosificaciones, correcciones de KH y calcio, entre otras. • Medidor PAR. Consulta tus mapas de luz con vista en planta y en tres dimensiones. • Asistente. Pregunta dudas sobre tu acuario y recibe recomendaciones a partir de tus propios parámetros. • Tienda Power VIP. Catálogo completo con fotos, categorías en cuadrícula o en lista, filtro por marca y carrito. El pago se completa de forma segura en la web. • Tus ventajas. Consulta tu ahorro acumulado, tus tokens y los tramos de descuento. PARA QUIÉN ES Power VIP es una app para miembros Power VIP. Se entra con la misma cuenta de la web y, si todavía no eres miembro, puedes suscribirte desde la propia app. SUSCRIPCIÓN POWER VIP La membresía Power VIP es una suscripción mensual con renovación automática que se cobra a tu cuenta de Apple al confirmar la compra. Se renueva sola cada mes salvo que la canceles al menos 24 horas antes del final del periodo en curso, desde los ajustes de tu cuenta de App Store. El precio se muestra en la app antes de comprar. Condiciones de uso (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Política de privacidad: https://www.power-aquaculture.es/privacidad-app/ SOBRE TUS DATOS Tus mediciones, fotos y análisis son tuyos y solo los ves tú desde tu cuenta. Puedes consultar la política de privacidad en www.power-aquaculture.es/privacidad-app/

Screenshots

Light Spectrometer Wavelength4 screens
Power VIP4 screens

Verdict

The call

The clearest difference is update cadence: Power VIP at every 5 days against Light Spectrometer Wavelength's every 2 months. Light Spectrometer Wavelength's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Light Spectrometer Wavelength sells 4 in-app purchases, starting at $0.99 per month and Power VIP sells 1 in-app purchase, starting at $49.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Light Spectrometer Wavelength ships an update every 2 months, Power VIP every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Light Spectrometer Wavelength versus Power VIP: the parameters behind the verdict, then further details
ParameterLight Spectrometer WavelengthPower VIP
PriceFreeFree
Rating4.2 (96 ratings) — better—
Positive reviews70.6% of reviews—
Number of ratings96 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size43 MB44 MB
Age rating4+17+
DeveloperContechity ABPower Aquaculture SL

In-app purchases

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
1 purchases

Power VIP

Subscriptions1
  • Membresía Power VIP$49.991 Month

Questions

Is Light Spectrometer Wavelength free?
Light Spectrometer Wavelength is free to download, with in-app purchases available.
Is Power VIP free?
Power VIP is free to download, with in-app purchases available.
Do Light Spectrometer Wavelength or Power VIP have ads?
Neither Light Spectrometer Wavelength nor Power VIP shows ads.
Which is updated more often, Light Spectrometer Wavelength or Power VIP?
Light Spectrometer Wavelength ships an update every 2 months, and Power VIP every 5 days. Most recently, Light Spectrometer Wavelength was updated on November 3, 2026 and Power VIP on October 31, 2026.

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