Diffraction Grating Calculator vs Device Detector
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diffraction Grating Calculator
Read full descriptionHide full description
Diffraction Grating Calculator is a physics/math calculator that calculates the angles of diffracted orders of monochromatic light when shone on a reflective diffraction grating. Features: - Instant calculation. - Results are copyable to other apps. - Formulas are included as reference. - Supports up to 16 decimal places. - Supports various units for each input. - Works seamlessly on both iPhone and iPad. - Lightweight, compact app optimized for everyday use. - Ad-free and built with privacy in mind. In optics, a diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams traveling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers. A diffraction grating is a material that contains a large number of parallel slits separated by a distance (d). This periodic separation of slits is usually on the order of micrometers. Because this distance is on the order of the wavelength of light, when light waves pass through the grating, the slits are able to cause constructive and destructive interference among the light waves. The waves will constructively interfere if the angle of reflection delays one of the waves by a whole wavelength. Diffraction grating equation: m * λ = a * sin(θm) Where: m: The order number of the diffracted image, m = 1,2,3 ... θ: Grating angle, in radians a: Grating Spacing, in lines per meter λ: Wavelength, in meters Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Device Detector
Locate misplaced Bluetooth and WiFi devices with real-time tracking. This app helps you find wireless gadgets like headphones and smartwatches by showing their proximity and WiFi connection status, ensuring they are likely still at home.
- Real-Time Radar
- Proximity Score in Meters
- WiFi Connection Detection
- Broad Device Compatibility
- Alerts and Notifications
- Pin Favorite Devices
Read full descriptionHide full description
Device Detector is your ultimate Solution for Real-Time Bluetooth and WiFi Device Detection. Have you ever misplaced your wireless gadgets? No worries! Device Detector is here to swiftly reunite you with your Bluetooth and WiFi devices. Whether it's headphones, smartwatches, portable speakers, or fitness trackers, our app ensures you can easily locate any compatible device in moments, including checking if a device is still connected to your home WiFi, indicating it's likely within your premises. **Key Features:** - Real-Time Radar: Instantly view all nearby devices with our live radar, making it a breeze to find what you're looking for in real-time. - Proximity Score: Receive a dynamic distance in meters for the device you're tracking, helping you gauge how close you are to finding it. - WiFi Connection Detection: Easily determine if a device is still connected to your home WiFi network, offering peace of mind that it's likely still at home. - Broad Compatibility: We support a wide range of devices, including wireless earphones, speakers, fitness bands, and more, ensuring you're covered no matter what you're trying to find. - Alerts and Notifications: Get notified through vibrations or sound alerts when you're near your lost device, simplifying the search. - Pin Favorites: Keep your most important devices pinned at the top of your list for quick access and tracking. How It Works: 1. Launch Device Detector: Simply open the app, and it immediately begins searching for nearby Bluetooth and WiFi devices. 2. Explore and Move: As you move, our app guides you with a dynamic distance in meters, helping you close in on your lost device. 3. Check WiFi Connection: See if the missing device is still connected to your home WiFi, providing an additional clue to its location. 4. Sound Indicators: When you're getting close, Device Detector alerts you with sounds, signaling you're on the right track. 5. Success: Find your device and celebrate – Device Detector has brought your tech back to you! Device Detector is more than just a device finder; it's your personal tech companion, ensuring you never lose track of your devices again, with the added assurance of WiFi connection detection to help confirm your devices are still safely at home. If you have any questions / comments please email us: contact@nstx.io SUBSCRIPTION: We offer auto-renewing subscription: - Length: weekly - Payment will be charged to iTunes Account at confirmation of purchase - You will be able to access the Premium features of the app for the duration of the subscription - Subscription automatically renews for the same price and duration period as the original period unless auto-renew is turned off at least 24-hours before the end of the current period - The account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase - No cancellation of the current subscription is allowed during the active subscription period - You may cancel a subscription during its free trial period via the subscription setting through your Apple account. This must be done 24 hours before the end of the subscription period to avoid being charged. Please visit https://support.apple.com/en-us/HT202039 for more information on how to proceed. - You may turn off the auto-renewal of your subscription via your Apple Account Settings. However, you are not able to cancel the current subscription during its active period - Any unused portion of a free-trial period will be forfeited when the user purchases a subscription. Privacy Policy : https://nstx.io/DeviceDetector/Device-policy.html Terms of Use : https://nstx.io/DeviceDetector/Device-terms.html
Screenshots
Verdict
The clearest difference is price: Device Detector at Free against Diffraction Grating Calculator's $2.99. Device Detector also leads on update cadence (every 7 months vs every 29 months). Diffraction Grating Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support 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
Device Detector is free to download; Diffraction Grating Calculator costs $2.99 up front. Device Detector sells 1 in-app purchase, starting at $3.99 per 7 days. Diffraction Grating Calculator asks for nothing beyond the download.
Diffraction Grating Calculator ships an update every 29 months, Device Detector every 7 months. The most recent releases landed on September 29, 2026 and October 13, 2026 respectively.
| Parameter | Diffraction Grating Calculator | Device Detector |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | — | 4.2 (21 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 21 — better |
| Update frequency | Every 29 months | Every 7 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13 — better | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Nitrio | yohan teixeira |
In-app purchases
Diffraction Grating Calculator
No in-app purchases
Device Detector
- Pro Version3 Days trial$3.997 Days
Questions
Is Diffraction Grating Calculator free?
Is Device Detector free?
Do Diffraction Grating Calculator or Device Detector have ads?
Which is updated more often, Diffraction Grating Calculator or Device Detector?
Other comparisons















