AMP Fit vs Sound Amplifier | Volume Boost
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AMP Fit
This professional tool allows hearing specialists to fit and adjust personal audio amplifiers. It uses specific tones and offers control over four key parameters for customized sound profiles. Requires a professional account login.
- Personal audio amplifier fitting
- Professional account login
- Tone-based adjustments
- Control over four parameters
- Preset selection
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This application is for fitting the AMP personal audio amplifier and should be used only by hearing professionals. To use this application for fitting AMP devices you must login to your online professional account (username and password) with Starkey, Audibel, NuEar, MicroTech or AudioSync. If you don’t currently have an account please call 800.733.2799. The AMP application uses specific tones to make changes to the AMP devices and the application works best with headphones. Recommended headphones sets are those which have the foam padding that rests on the ears, similar to airplane headphones. AMP devices are delivered pre-programmed to preset #2 for a mild-to-moderate sloping hearing loss with compression engaged. Professionals can select one of 3 presets as a starting point for the fitting. Each preset is based on a specific audiometric configuration and compression scheme. This application provides the option to also control four parameters of the AMP devices: 1. Low Frequency Gain 2. High Frequency Gain 3. Overall Gain 4. Output Individual adjustments can be made using the ‘+’ and ‘-’ buttons representing an increase or decrease in level, relative to the Preset. The AMP device will present a confirmation tone for the user after any preset change or parameter adjustment.
Sound Amplifier | Volume Boost
Amplify live headphone audio and enhance your listening experience. This app offers volume boosts, music enhancement, and even a hearing assessment. Record audio and review transcriptions to never miss a word.
- Volume boost presets
- Music enhancement
- Hearing assessment
- Live audio recording
- Real-time transcriptions
- Personalized hearing profiles
- Noise reduction
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Enhance Your Hearing with Audio Amplifier! Don't miss out on a single sound – open the door to a world of amplified audio! Key Features + Louder Volume Boost: > Select from various sound amplification presets + Music Enhancement: > Elevate your music experience in your favorite Music apps > Immerse yourself in your favorite tunes with superior sound quality + Hearing Assessment Choices: > Assess your hearing accuracy with headphones for precise results > Conveniently use your iPhone's speaker for a quick evaluation + Listen Live and Record: > Record looped audio discreetly to revisit what you've heard > Review real-time transcriptions to ensure you never miss a word Premium Subscription Features: ○ Personalized Hearing Profiles: > Customize your hearing experience with preset options for everyday needs > Conduct a built-in hearing test to fine-tune sound to your unique hearing profile ○ Louder Volume Boost > Boost audio up to 10 times for everyday situations ○ Reduce noise > Eliminates background noise, increases speech intelligibility ○ Maximize music > Export your music with maximum effort > Export music with custom equalizer settings SUBSCRIPTION NOTICE: Please note that a premium subscription is required to access all the app's features. Privacy policy: https://docs.google.com/document/d/1SaV6gewYAk2gdvdJSZGH8spAyA805eJBkxWhmBnK_mc/edit?usp=sharing Terms of service: https://docs.google.com/document/d/1xyNnScm0PrTtNsWxVzWuvFHyVT8Cmi6h3R0BSiTvwso/edit?usp=sharing
Screenshots
Verdict
The clearest difference is rating: AMP Fit at 5.0 against Sound Amplifier | Volume Boost's 4.5. AMP Fit also leads on in-app purchases (none vs 5) and review sentiment (100% vs 84%). Sound Amplifier | Volume Boost's advantage is ratings volume (2.3K vs 1). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Sound Amplifier | Volume Boost sells 5 in-app purchases, starting at $5.99 per 7 days. AMP Fit asks for nothing beyond the download.
AMP Fit holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Sound Amplifier | Volume Boost has 2.3K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of AMP Fit's written reviews are positive against 84% of Sound Amplifier | Volume Boost's.
AMP Fit ships an update every 2 months, Sound Amplifier | Volume Boost every 4 months. The most recent releases landed on November 4, 2026 and November 11, 2026 respectively.
| Parameter | AMP Fit | Sound Amplifier | Volume Boost |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (2.3K ratings) |
| Positive reviews | 100.0% of reviews — better | 84.1% of reviews |
| Number of ratings | 1 | 2.3K — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 38 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Starkey Laboratories | Irakli Tsuladze |
Customer experience
AMP Fit
Sound Amplifier | Volume Boost
Bugs and requests
AMP Fit
Not enough reviews yet to summarise bugs or requests.
Sound Amplifier | Volume Boost
Reported bugs
3 issues- Recording feature not working
- Delayed sound output
- Compatibility issues with older devices
Requested features
4 requests- Compatibility with more audio sources
- Background playback support
- Customizable sound profiles
- Volume boost for specific apps
In-app purchases
AMP Fit
No in-app purchases
Sound Amplifier | Volume Boost
- Weekly Access3 Days trial$5.997 Days
- Hearing Amplifier, Ear Spy3 Days trial$11.991 Month
- 3-Month Sound Boost Access$12.993 Months
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- Listening Device, Amp Me3 Days trial$39.991 Year
- lifetime$44.99







