Showing 1–20 of 1,000 ranked alternatives.
Sule Coskun
Hear voices clearly with headphones
Improve clarity by boosting volume up to 5x. Reduce background noise in loud environments. Take a quick test for personalized sound settings. Works with Bluetooth, wired headphones, and popular brands like and Beats. No internet connection required.
Application development 21, LLC
Boost volume and clarity for audio
Adjust volume and balance for audio content. Enhance clarity and volume for videos and music. Personalize sound settings based on profile. Connect via Bluetooth and headphones. Control volume directly within the .
Davicom Semiconductor, Inc.
Amplify sounds and filter noise
Amplify and filter environmental sounds using phone microphone. Adjust frequency bands and background noise levels. Apply preset profiles or create custom ones for different settings. Output audio through earphones for clearer listening.
MAXEN KARL
Customize profiles and adjust settings
Customize profiles for each ear with personalized sound calibration. Adjust settings for different environments. Monitor health metrics. Receive real-time feedback on sound quality. Sync with devices for optimal performance.
EyeQue Corporation
Measure pupillary distance with AR
Use AR technology to measure far and near pupillary distance without additional tools. View left and right measurements for distance and near viewing. Requires iPhone X or newer with Face ID support.
VisTech.Projects LLC
PD with your iPhone camera
By facing the camera and tapping a button. Display PD results for ordering eyeglasses or adjusting VR headsets. Supports iPhone X and newer devices.
An-Che Lee
Mix sounds, set timer, play in background
Generates ambient and for focus, relaxation, and sleep. Includes 20+ sound options. Supports background playback. Allows mixing up to four sounds. Controls playback from control center, lock screen, or headset buttons. Auto-pauses on calls or alarms.
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