# Crisp Sound — Software Hearing Aid > Software hearing aid app that boosts and denoises audio for improved listening. (iPhone/iPad app by Pleasant AI LLC.) - Source: https://appshunter.io/ios/app/crisp-sound/id1558701750 (this page in markdown: same URL + `.md`) - Developer: [Pleasant AI LLC](https://appshunter.io/developer/1558701752) - Category: Utilities, Health & Fitness - Price: Free - Rating: 3.79/5 from 14 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 36 MB - Languages: English, Chinese - Released: 2021-04-02 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/crisp-sound/id1558701750/reviews.md ## What is Crisp Sound? Crisp Sound turns your phone to an Software Hearing Aid. All you need is a pair of wireless earbuds or a wired headphone. If you are using wireless, bluetooth 5+ are recommended for both phone and earbuds. Disclaimer: this is NOT a medical prescription app. Main functionalities: 1. Sound boosting in Stereo 2. Repeat last words 3. Deep Denoising 4. Simple settings by hearing loss types 5. Work in background Please do note don't over-boost. It is our great pleasure if this app could provide you a decent hearing experience through your own mobile phone. This App is still evolving. Please let us know if you have any suggestions. contact@pleasantai.com Help us by giving 5 stars. Much appreciated if you already did it! :) Thank you. ## Key features - Sound boosting in stereo - Repeat last words - Deep denoising - Simple settings by hearing loss types - Works in background ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/crisp-sound/id1558701750/reviews.md ### 5/5 — I D/L as many as 3 hearing apps a week…. *2024-01-09* In my attempt to find the best hearing app, I’ve come to download nearly 3 sometimes more hearing apps a week. Most have subscriptions and want too much for a flimsy setting to amplify a sound. This app really does work. And I keep coming back to it as my preferred one because it allows me save my settings once I take the included hearing test and gives you the option to adjust them based on how you are able to hear your environment. There is a “denoise” function that helps you zone in on whatever sound you prefer more clearly. Additionally, the app will detect human voices and mark them as SPEECH. So that you know right off the bat of what you are listening to is a human voice. There are many sounds that could possibly sound like speech, like animal screeches or washing machines humming. This app targets it and starts its off for you. Excellent app. Far superior than most of the paid services on here. I have two in your canal hearing aids and prefer this app sometimes bc it never lets me down. ### 2/5 — Paul *2023-02-22* Glad I didn’t pay for it. Sound delay and distortion when using the noise cancellation. More work needed. ### 4/5 — Works for me. *2022-12-01* Doesn’t work on every thing but for TV its great. Simple to use! ### 5/5 — Great app during hearing aids repair *2022-10-25* Needed to send my hearing aids out for repair. Will take two weeks. This is a great app to fill the gap. Sadly, i have to use the wired earphones as the bluetooth delay is too noticeable and distracting. Also i have to hand carry the phone since placing it in your pocket generates a lot of rustling noises. Works and No subscription are the real selling points of this app. ### 4/5 — Close to what I Need *2022-10-02* I’m HOH and trying iPhone amplify apps to help hear TV or small group chats without much distortion, noise or lag. Basically to sub for $$$$ hearing aids while I save up. I’m using wired earbuds since wireless (Bluetooth) has too much lag, making conversations impossible. This Crisp Sound app has pros & cons. Pros - compared to others, it’s small, simple, & “free” (no subscription.) There are ads but not too intrusive. It does what it says: makes sounds crisper, which helps make voices clearer without much lag. Cons - it’s crackly, and occasionally loud sounds punch through harshly. Fiddling with settings in different noise environments helps some. Using the ‘denoise’ filter muffles everything, so that doesn’t fix the loud sounds. Using for TV, Background music & some voices seem distorted. It crashes out randomly. It eats battery life. It occasionally trips on the ‘Voice Control’ function (Siri predecessor) even though that is OFF in Settings. Startling when it happens! All that said, I’ll keep this on my phone as a back-up hearing tool. ### 4/5 — This does work with my LG Bluetooth headset. now *2022-05-05* It’s simple and free. No subscription to make basic functions work. Works in background. There is a lag but I don’t care I can now hear. ### 2/5 — Doesn’t work with Bluetooth headphones *2022-03-18* Nice app, unfortunately doesn’t work with Bluetooth headphones ## Frequently asked questions about Crisp Sound ### What is Crisp Sound? Crisp Sound is a software hearing aid application that uses your phone to amplify and enhance audio. It offers features like sound boosting, denoising, and repeat last words functionality. ### Does Crisp Sound require any special hardware? Yes, Crisp Sound requires a pair of wireless earbuds or wired headphones to function. For wireless earbuds, Bluetooth 5+ is recommended for optimal performance. ### Is Crisp Sound a medical device? No, Crisp Sound is explicitly not a medical prescription app. It is designed to provide a decent hearing experience through your mobile phone and should not be used as a substitute for professional medical advice or devices. ### What are the main functionalities of Crisp Sound? The main functionalities include stereo sound boosting, repeating the last spoken words, deep denoising, simple settings adjusted for hearing loss types, and the ability to work in the background. ### What devices is Crisp Sound compatible with? Crisp Sound is currently supported on iPhone and iPod devices. ### How often is Crisp Sound updated? The latest version of Crisp Sound is 4.1, and it was last updated on June 4, 2023. The app is still evolving, and users are encouraged to provide suggestions. ### What is the user rating for Crisp Sound? Crisp Sound has a rating of 3.8 stars based on 14 ratings. Users are encouraged to provide 5-star reviews to help support the app's development. ### Does Crisp Sound have ads? No, Crisp Sound does not contain advertisements. ## Version history (last 5 releases) ### 4.1 — 2023-06-04 Updated Denoise Model ### 4.0 — 2023-01-27 We hope our users doing great. In this version, we made several improvements including: 1. Updated Denoising model 2. Added VAD (voice activity detector) model 3. Saving power by running denoising according to VAD result 4. Add updates for dependency libraries Thank you for supporting this app. ### 3.3 — 2021-09-16 1. Fixed several voice issues 2. Upgraded library dependencies ### 3.2 — 2021-08-17 App Privacy url updated. ### 3.1 — 2021-08-14 Update App Icon Update Deep Model Add AGC/DRC Add Speech Detection ## Apps similar to Crisp Sound | App | Rating | Price | Category | | --- | --- | --- | --- | | [Ear Spy Apps - Super Hearing](https://appshunter.io/ios/app/ear-spy-apps-super-hearing/id6468564704) | 4.3 (788) | Free | Utilities | | [HEARING AID Pro 2 for AirPods](https://appshunter.io/ios/app/hearing-aid-pro-2-for-airpods/id1509377614) | 4.2 (448) | Free | Utilities | | [Hear Boost: Hearing Ear Aid](https://appshunter.io/ios/app/hear-boost-hearing-ear-aid/id1437159134) | 4.2 (11,290) | Free | Utilities | | [Hearing Amplifier: Clear Sound](https://appshunter.io/ios/app/hearing-amplifier-clear-sound/id1620656783) | 4.4 (855) | Free | Utilities | | [Super Ear - Voice Amplifier](https://appshunter.io/ios/app/super-ear-voice-amplifier/id1359740008) | 4.5 (653) | Free | Utilities | | [Hear Boost: Live Transcribe](https://appshunter.io/ios/app/hear-boost-live-transcribe/id1636885006) | 4.0 (31) | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*