Diffraction Grating Calculator vs DNS Speed Tester

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.

DNS Speed Tester — Find the Fastest DNS for Your Network Slow websites, high latency, or unreliable connections? Your DNS provider could be the bottleneck. DNS Speed Tester is a powerful DNS benchmark tool that measures and compares the speed, latency, and reliability of DNS servers in real time, directly from your iPhone or iPad. Every website, app, game, and online service depends on DNS. If your ISP's default DNS is slow or overloaded, your internet experience can feel sluggish. DNS Speed Tester helps you benchmark popular DNS providers against your current configuration so you can find the fastest and most reliable DNS server for your network. Features • Real-Time Performance Dashboard View live graphs showing DNS response times and latency across multiple providers. • Multiple Testing Protocols Benchmark DNS performance using UDP, TCP, DNS-over-HTTPS (DoH), DNS-over-TLS (DoT), and ICMP Ping. • Built-In DNS Providers Compare Google Public DNS, Cloudflare, Quad9, and curated Privacy, Security, Family, and Ad-Blocking DNS categories. • System DNS Detection Automatically detects and benchmarks your current device and network DNS configuration. • Advanced Benchmark Controls Customize test domains, concurrency levels, timeout limits, cache-busting, and latency calculation methods. • Custom DNS Providers Add, edit, and benchmark your own DNS servers. • Import and Export Settings Save, share, and restore DNS configurations using JSON. • Designed for iPhone and iPad Fast, lightweight, and optimized for iOS and iPadOS with automatic Light and Dark Mode support. Perfect For • Gamers looking for lower latency • Privacy-focused users comparing DoH and DoT providers • Home users optimizing browsing performance • Network administrators troubleshooting DNS issues • IT professionals validating DNS performance DNS Speed Tester provides accurate DNS benchmarking and performance analysis, helping you choose the best DNS service for speed, reliability, privacy, and security. Free. No account required. No telemetry. Just fast, accurate DNS benchmarking.