Starkey Relax vs P.A.R.T.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Starkey Relax
This app offers personalized sound therapy to help manage tinnitus. Customize 12 relief sounds with adjustable volume and frequency, paired with soothing images, for a tailored experience. Stream sounds directly to compatible hearing aids.
- Customizable relief sounds
- Adjustable volume and frequency
- Soothing image pairing
- Sound therapy protocol integration
- Direct streaming to hearing aids
- Informational resource
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Ringing, buzzing, roaring, clicking, and hissing are words which can be used to describe tinnitus, the perception of sound in your ear(s) or head when no external sound is present. While there is no cure for tinnitus, treatment options such as sound therapy and counseling can provide relief. The Starkey Relax app is an informational resource and self-management tool, which is intended for incorporation into a hearing professional’s sound therapy protocol for patients diagnosed with tinnitus. Sound therapy uses sound to decrease the loudness or prominence of tinnitus. Starkey Relax allows you to customize 12 relief sounds by modifying the volume, frequency response, and rate of fluctuation, providing you with highly-personalized relief sounds for your unique tinnitus. With Starkey Relax, you can create new, customized relief sounds coupled with soothing images to best suit the changing behavior of your subjective tinnitus. You can play Starkey Relax relief sounds through your Apple device or any connected speaker/headphone. You can also stream the relief sounds from your Apple device to Made for iPhone hearing aids or 900sync hearing aids (via the SurfLink Mobile device) from Starkey, Audibel, NuEar, MicroTech, and AGX Hearing. Starkey Hearing Technologies is a proud corporate member of the American Tinnitus Association, a global leader in the effort to cure tinnitus. ATA brings together patients, healthcare providers, researchers, and industry partners to improve tinnitus information and support, and fund vital tinnitus research.
P.A.R.T.
This platform allows researchers to design, configure, and test cognitive and auditory assessment protocols. It provides a development environment for refining assessment batteries before use in human subject research.
- Design environment for 100+ assessment types
- Psychoacoustical, neuropsychological, executive function tests
- Adaptive algorithm configuration
- Customizable assessment flows
- Detailed data logging
- Protocol validation tools
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Welcome to Portable Automated Rapid Testing (PART) - A Research Development Platform PART is a specialized tool designed exclusively for researchers and developers to create, configure, and test cognitive and auditory assessment protocols. This platform is NOT intended for conducting human subject research directly, but rather serves as a development environment where researchers can design and refine assessment batteries before implementing them in IRB-approved studies. Key features of PART: - Design environment for over 100 assessment types, including psychoacoustical, neuropsychological, executive function, attentional control, and visual processing tests - Advanced configuration options for adaptive algorithms and testing parameters - Comprehensive scripting system for customizing assessment flows - Detailed data logging capabilities for protocol validation PART was developed by the Brain Game Center for Mental Fitness and Well-being at Northeastern University (formerly UC Riverside) and has been supported by grants from the NIH, DOD, and AERDF.
Screenshots
Verdict
The clearest difference is rating: P.A.R.T. at 4.6 against Starkey Relax's 4.0. P.A.R.T. also leads on update cadence (every 2 months vs every 7 months). Starkey Relax's advantage is ratings volume (28 vs 5) and iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
P.A.R.T. holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Starkey Relax has 28 ratings behind it against 5, so its average is the more settled of the two.
Starkey Relax ships an update every 7 months, P.A.R.T. every 2 months. The most recent releases landed on July 7, 2026 and June 4, 2026 respectively.
| Parameter | Starkey Relax | P.A.R.T. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (28 ratings) | 4.6 (5 ratings) — better |
| Positive reviews | 82.6% of reviews | — |
| Number of ratings | 28 — better | 5 |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 83 MB | 181 MB |
| Age rating | 4+ | 4+ |
| Developer | Starkey Laboratories, Inc. | Northeastern University |
Customer experience
Starkey Relax
P.A.R.T.
In-app purchases
Starkey Relax
No in-app purchases
P.A.R.T.
No in-app purchases







