Comparison

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.

Head to head
About

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.

Highlights
  • Customizable relief sounds
  • Adjustable volume and frequency
  • Soothing image pairing
  • Sound therapy protocol integration
  • Direct streaming to hearing aids
  • Informational resource
Features
Read full description

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.

About

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.

Highlights
  • Design environment for 100+ assessment types
  • Psychoacoustical, neuropsychological, executive function tests
  • Adaptive algorithm configuration
  • Customizable assessment flows
  • Detailed data logging
  • Protocol validation tools
Features
Read full description

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

Starkey Relax4 screens
P.A.R.T.4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Starkey Relax versus P.A.R.T.: the parameters behind the verdict, then further details
ParameterStarkey RelaxP.A.R.T.
PriceFreeFree
Rating4.0 (28 ratings)4.6 (5 ratings) — better
Positive reviews82.6% of reviews—
Number of ratings28 — better5
Update frequencyEvery 7 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size83 MB181 MB
Age rating4+4+
DeveloperStarkey Laboratories, Inc.Northeastern University

Customer experience

Starkey Relax

All ratings28 ratings
Positive75.0%
Neutral7.1%
Negative17.9%
Written reviews23 reviews
Positive82.6%
Neutral8.7%
Negative8.7%

P.A.R.T.

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

None

Starkey Relax

No in-app purchases

None

P.A.R.T.

No in-app purchases

Questions

Is Starkey Relax free?
Starkey Relax is free to download, with no in-app purchases.
Is P.A.R.T. free?
P.A.R.T. is free to download, with no in-app purchases.
Which has better reviews, Starkey Relax or P.A.R.T.?
P.A.R.T. is rated higher. Starkey Relax averages 4.0 out of 5 from 28 ratings, while P.A.R.T. averages 4.6 from 5 ratings.
Do Starkey Relax or P.A.R.T. have ads?
Neither Starkey Relax nor P.A.R.T. shows ads.
Which is updated more often, Starkey Relax or P.A.R.T.?
Starkey Relax ships an update every 7 months, and P.A.R.T. every 2 months. Most recently, Starkey Relax was updated on July 7, 2026 and P.A.R.T. on June 4, 2026.

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