Decibel Meter Plus vs GenieCalc

Decibel Meter helps you quickly check the sound level around you using your device’s built-in microphone. Open the app and instantly see the current sound level in decibels. You can use it to get a general idea of everyday noise levels at home, in the office, in classrooms, outdoors, or in other environments. Key Features: • Real-time sound level measurement • Clear decibel display • Average, peak, and maximum values • Simple visual meter and history graph • Calibration adjustment for different devices and environments • Easy-to-use interface for quick checks • Support for iPhone and iPad • Multiple language support • In-app Support for feedback and questions Please note: Decibel readings may vary depending on your device microphone, case, distance from the sound source, background noise, and calibration settings. This app is designed for general reference and everyday use. It is not a replacement for a certified professional sound level meter. Download Decibel Meter and check the sound around you with ease.

GenieCalc puts six everyday tools into one clean, dark-themed app. No account, no subscription — just open it and calculate. Scientific calculator Trigonometric, hyperbolic and inverse functions, logarithms, powers and roots, factorials, permutations and combinations, GCD and LCM. A running history lets you tap any earlier line to reuse it, and a D-pad moves the cursor inside long expressions. Function grapher Plot any expression in x over a range you choose and read the curve directly. Currency converter Live rates for 16 major currencies, plus any currency you add yourself. Added currencies survive a refresh. Humidity tools Convert between relative and absolute humidity, find the dew point, and compute saturation vapour pressure in hPa, kPa and mmHg — using the Magnus approximation. Market indices Track S&P 500, NASDAQ, Dow Jones, KOSPI, Nikkei, futures, gold, oil and crypto, with sparkline charts and a detail view. Unit converter Over 120 units across 11 categories: length, area, mass, volume, time, temperature, current, energy, power, radiation dose and radioactivity. You can define your own units too. 26 languages The interface follows your device language, or you can pin a language in Settings. Numbers are formatted for your region. GenieCalc is free and supported by ads. You can review your ad personalisation choices at any time from Settings.