Night Light for iPad vs OSpectrometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Night Light for iPad
This utility app provides a customizable light source, mimicking a night light. Users can choose from various designs and colors to illuminate their surroundings. The light is activated by tapping the screen.
- Tap-activated light
- HD design
- Classic clicking sound
- Multiple color options
- Customizable night light designs
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New! Download it now! =============== NIGHT LIGHT HD [FREE] =============== This application was created to provide a source of light for the user. Choose from many different night lights to shine away the darkness. Created to act like a night light (tapping it will activate/deactivate the light). Afraid of the dark? Have no fear.... Night Light is here! + Tap Activated + HD Design + Classic clicking noise + Many different color options to choose from Note: To change colors, click on the moon shape icon near the corner of the screen. Thanks! Get it now!
OSpectrometer
This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.
- Visible light spectrum analysis
- RGB color value mapping
- Wavelength selection and scanning
- Front camera reflection sensing
- Save and share results
- Offline functionality
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Optical spectroscopy in the visible light spectrum is a commonly used tool in different fields such as health, manufacturing, art, and forensic research. OSpectrometer implements basic spectrometer functions using the built-in camera and screen without requiring external devices or programs. - Visible light spectrum is transformed and mapped to a function that generates RGB (Red Green Blue) color values - A specific light wavelength can be selected and used to illuminate a desired target (i.e., close to the screen) - The whole spectrum or a specific part of the spectrum can be selected and scanned - Front camera is used to sense the reflection from the target object - Consistent and repeatable reflection/absorption amplitude with respect to the color spectrum - The result can be saved and shared - Works offline, no need to connect to any network or internet Privacy-policy: https://software.nanorescenter.com/osprectrometer-privacy-policy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Night Light for iPad at 54% against OSpectrometer's 0%. Night Light for iPad also leads on rating (3.8 vs 2.0) and in-app purchases (none vs 2). OSpectrometer's advantage is update cadence (every 2 weeks vs every 4 months) and device support (3 vs 1). On price and ads 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. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. Night Light for iPad asks for nothing beyond the download.
Night Light for iPad holds the better App Store score, 3.8 against 2.0. That said, the two scores are not equally well evidenced: Night Light for iPad has 136 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 54% of Night Light for iPad's written reviews are positive against 0% of OSpectrometer's.
Night Light for iPad ships an update every 4 months, OSpectrometer every 2 weeks. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.
| Parameter | Night Light for iPad | OSpectrometer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (136 ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 53.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 136 — better | 4 |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 4.2 — better | 15.1 |
| Further details — not scored | ||
| Size | 12 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Victor Ren | NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI |
Customer experience
Night Light for iPad
OSpectrometer
Bugs and requests
Night Light for iPad
Reported bugs
13 issues- Ads spoil the use
- Does not work
- Blank white screen
- No instructions
- Ads interfere
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- Unable to remove ads
- Ads are splashed across the screen
- Ads without warning
- White screen has ads
- Clicking sound is annoying
- Screen doesn't show colors correctly when facing up
- Can't change color
- Thin advertisement band
Requested features
8 requests- Option to pay to remove ads
- Update the app
- Add animations (fish, planets, stars)
- Add lullaby music (baby, gothic)
- Add a dimmer
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- Option to remove ads
- Allow changing colors
- Fix the white screen ad issue
OSpectrometer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Night Light for iPad
No in-app purchases
OSpectrometer
- month3 Days trial$2.991 Month
- year3 Days trial$9.991 Year
Questions
Is Night Light for iPad free?
Is OSpectrometer free?
Which has better reviews, Night Light for iPad or OSpectrometer?
Do Night Light for iPad or OSpectrometer have ads?
Which is updated more often, Night Light for iPad or OSpectrometer?
Other comparisons
