# EarDial > Measures sound levels and calculates safe exposure duration to prevent hearing loss. (iPhone/iPad app by Bitien.) - Source: https://appshunter.io/ios/app/eardial/id1194143337 (this page in markdown: same URL + `.md`) - Developer: [Bitien](https://appshunter.io/developer/1100454154) - Category: Utilities, Health & Fitness - Price: Free - Rating: 3.90/5 from 9 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 13.4 · 15 MB - Languages: American English - Released: 2017-01-13 - Data updated: 2026-06-08 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/eardial/id1194143337/reviews.md ## What is EarDial? Know the sound level around you, and how long you can stay safely. This app will tell you the approximate sound level pressure you are currently exposed to, and it will tell you how long you can stay at that level without risk of hearing loss. You can find inside more information about the decibel scale, the noise dose formula, attenuation standards, and more. This app was developed as a free companion for EarDial HiFi Earplugs - Invisible High Fidelity Hearing Protection, but it is useful even if you are not an owner of EarDial earplugs. You can compare the results if you are wearing EarDial earplugs or not. When you activate the EarDial switch, it will adjust the calculations based on the EarDial attenuation levels. You will be able to calibrate the app to your specific device if necessary. More information how to do that inside. ## Key features - Measures ambient sound levels - Calculates safe exposure time - Provides decibel scale information - Explains noise dose formula - Adjusts for earplug attenuation - Device calibration ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/eardial/id1194143337/reviews.md ### 4/5 — Good app update would be nice *2023-01-25, version 1.7.0* Basic app very straightforward. An update that would support widgets or even the ability to show up on your home screen would be nice ### 5/5 — Updated app *2022-09-17, version 1.7.0* It is pretty good now, similar reading compare to official NIOSH National Institutions of Occupational Health & Safety ### 3/5 — App is great, customer service is not *2019-08-02* My EarDials were spectacular when they worked. Somehow the filters fell out as well as the gasket, and when I contacted customer support, my email went directly to spam. I am well within the year warranty. It’s a little disappointing when there’s no other medium to use to reach the customer service team. ### 5/5 — Calibrates to your specific device *2019-01-15* This is the only app that gives the same measurement regardless of what phone I use. Other apps don’t do that. Some of them are way different for different phones, and you don’t know which one is the right one. I don’t know why this one is different but it’s impressive. ### 1/5 — App only works in total silence. *2018-12-08, version 1.4.0* The app is supposed to tell you what the noise level is and how long you can safely remain in that environment without hearing protection. It only works in total silence, displaying the noise level ad 30 dB(A). If there is any noise, the latest version of the app (1.4.0) it just shows a black screen and is completely unusable until you restart. This makes the app completely useless. I tried to advise the manufacturer using the ‘support’ link in the app, but they reject any email sent to them, apparently classifying is as spam. ### 2/5 — Wholly Inaccurate. *2018-08-16* I Compared decibel readings with two other apps, and found this app always reads 10 decibels higher than actual readings. I am curious as to whether or not that is intentional on EarDials part to spur sales of their ear protection. **Developer response:** We are trying to have the most accurate results possible, however we found an issue that caused some iPhones to show about 10 decibels higher, and I think this is what happened to you. This has been fixed with the new version. Please try again and update your review. Thanks! ### 5/5 — Great Ear Plugs *2018-03-23* I work in light industrial manufacturing. The noise doesn’t quite call for traditional ear plugs. EarDial plugs are awesome. I chosen EarDial over Eargasm because I hate seeing Eargams ads literally everywhere. ## Frequently asked questions about EarDial ### What is EarDial's primary function? EarDial measures the sound pressure level around you and calculates how long you can safely remain in that environment without risking hearing damage. It also offers educational content on noise and hearing. ### Is EarDial free to use? Yes, EarDial is available for free. It does not have any in-app purchases or advertisements, making it a completely free utility. ### Does EarDial have ads? No, EarDial does not contain advertisements. The app is completely ad-free, allowing for an uninterrupted user experience. ### What devices is EarDial compatible with? EarDial is designed for Apple devices and is compatible with iPhone, iPad, and iPod. It requires iOS 10.0 or later. ### How accurate is EarDial? The app provides approximate sound level pressure. For more precise measurements, calibration to your specific device is recommended, with instructions provided within the app. ### Can EarDial be used with hearing protection? Yes, EarDial can be used to compare sound levels with or without wearing EarDial HiFi Earplugs. Activating the EarDial switch adjusts calculations based on their specific attenuation levels. ### When was EarDial last updated? EarDial was last updated on September 5, 2024, with version 1.11.0. This indicates ongoing support and potential improvements. ### What is the age rating for EarDial? EarDial has an age rating of 4+. This suggests it is suitable for a wide range of users, including children, with no mature content. ## Version history (last 5 releases) ### 1.11.0 — 2024-09-05 Updated libraries and added calibration for Vivo V21 ### 1.10.0 — 2023-12-07 Added calibrations: Samsung Galaxy Note 20, Samsung Galaxy A53, Samsung Galaxy Z Fold 4, Samsung Glaxy S21, Samsung Galaxy S22, Galaxy Z flip 3, Samsung Galaxy A51, Xiaomi Redmi Note 10 Pro 5G, Xiaomi Redmi K50 Gaming, POCO F4 GT ### 1.9.0 — 2023-03-24 - Fix issue that made the app crash on start. - Added calibrations for Google Pixel 5/6/7 and iPhone 9/SE 3rd Gen. ### 1.8.0 — 2023-03-22 - Added calibrations for iPhone XR/11/12/13/14, Samsung Galaxy S20/M30/A52/A8/Note 10/A10/J6, LG Q6/Q60, Pocophone F1/X3, Huawei Y6, BlackBerry Keyone, Motorola Moto E5, Xperia XZ2 ### 1.7.0 — 2020-03-30 Add free EarDial promotion for each new calibration. Add Google Pixel 3 and 4 calibrations. Adjust iPhone calibrations. Adjust Nexus 5 calibration. Adjust OnePlus calibrations. Use Brand name instead of Manufacturer name. Upgrade to latest library versions. ## Apps similar to EarDial | App | Rating | Price | Category | | --- | --- | --- | --- | | [Decibel Metre (Sound Meter)](https://appshunter.io/ios/app/decibel-metre-sound-meter/id1590659820) | 4.5 (577) | Free | Utilities | | [Decibel Reader](https://appshunter.io/ios/app/decibel-reader/id6451411046) | 4.5 (24) | Free | Utilities | | [NIOSH Sound Level Meter](https://appshunter.io/ios/app/niosh-sound-level-meter/id1096545820) | 4.7 (16,224) | Free | Utilities | | [Noise Guru: Decibel Meter](https://appshunter.io/ios/app/noise-guru-decibel-meter/id6444836813) | 4.6 (299) | Free | Utilities | | [Sound Meter (Decibel)](https://appshunter.io/ios/app/sound-meter-decibel/id1626613141) | 4.6 (2,631) | Free | Utilities | | [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923) | 4.7 (155,562) | Free | Utilities | ## Related topics [eardial](https://appshunter.io/ios/topics/eardial) · [eardial llc](https://appshunter.io/ios/topics/eardial-llc) --- *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 2026-06-08.*