S/Z Ratio at App Store analyse

App power index: 110 (based on ranks around App Stores today)
Education Medical
Developer: Meld Apps
Price: 0 free
Current version: 1.1, last update: 7 years ago
First release : 29 Nov 2010
App size: 1.54 Mb
4.7 ( 1757 ratings )
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Estimation application downloads and cost

> 2.42k
Monthly downloads
~ $ 990
Estimation App Cost


S/Z Ratio is an evaluation utility for speech-language pathologists who provide assessment and/or treatment to clients with voice disorders.

With a built-in stopwatch feature, S/Z Ratio allows for the timing of a clientʼs /s/ and /z/ maximum phonation times. Once maximum phonation times are taken, an s/z ratio is instantly calculated. Calculated ratios are displayed in a color-coded fashion to provide visual feedback for quick interpretation of testing results. A reference information screen is also included to assist clinicians and clients in interpreting the obtained s/z ratio results.

Consider using this application throughout the evaluation and treatment process: (1) during initial evaluations, (2) as a screening tool to identify the need for further assessment, (3) during treatment sessions for visual, instant feedback, and (4) as a re-evaluation measure of progress based on therapeutic interventions.

Whether you specialize in voice therapy or provide treatment to the occasional client with voice disturbances, this application is a must-have. S/Z Ratio provides a wealth of features including:

- Built-in stopwatch
- Instant calculation of ratio
- Color-coded display of ratios
- Reference information screen for assistance in interpreting results
- Single touch Start, Stop and Reset stopwatch buttons
- Large, easy to read display
- Displays /s/ and /z/ maximum phonation time simultaneously for easy review and discussion with clients

Replace your stopwatch and calculator with this app today, and gain some much needed time and pocket space as a result!
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Available in countries
Country Price
Canada 2.79 CAD
China 12 CNY
France 2.29 EUR
Germany 2.29 EUR
Italy 2.29 EUR
Netherlands 2.29 EUR
Portugal 2.29 EUR
Spain 2.29 EUR
Poland 2.29 EUR
UK 1.99 GBP
India 159 INR
Japan 240 JPY
Poland 8.99 PLN
Russia 149 RUB
Turkey 8.99 TRY
USA 1.99 USD
Korea, Republic Of 2.19 USD
Ukraine 1.99 USD
Available for devices
iPhoneFirstGen, iPodTouchFirstGen, iPodTouchSecondGen, iPhone3G, iPhone3GS, iPadWifi, iPad3G, iPhone4, iPodTouchThirdGen, iPodTouchFourthGen, iPad2Wifi, iPad23G, iPhone4S, iPadThirdGen, iPadThirdGen4G, iPhone5, iPodTouchFifthGen, iPadFourthGen, iPadFourthGen4G, iPadMini, iPadMini4G, iPhone5c, iPhone5s, iPadAir, iPadAirCellular, iPadMiniRetina, iPadMiniRetinaCellular, iPhone6, iPhone6Plus, iPadAir2, iPadAir2Cellular, iPadMini3, iPadMini3Cellular, iPodTouchSixthGen, iPhone6s, iPhone6sPlus, iPadMini4, iPadMini4Cellular, iPadPro, iPadProCellular, iPadPro97, iPadPro97Cellular, iPhoneSE, iPhone7, iPhone7Plus, iPad611, iPad612, iPad71, iPad72, iPad73, iPad74, iPhone8, iPhone8Plus, iPhoneX,
Convenient, but not much better than a stop watch.

Generally with S/Z, you want to take the maximum time. It would be much better if you could measure x3 and take /choose the longest for the comparison. Instead, it only stores 1 S and 1 Z at a time. Does the norms for you, but isnt much better than a stopwatch as is. If it used 3/would save the longest, then itd be worth the price.

Works great!

Very clean interface and very easy to use. This app actually saves me a lot of time.

Easy to use

Simple concept, and a great time saver!

Will use immediately!

App is fast and intuitive to use, gives instant feedback (+ motivation) via real-time stopwatch. I will switch from cumbersome hand-timing now. And I can quit just writing "moderately breathy voice" in writeups & have a real baseline. A great addition to my daily-use "in the field" SLP eval toolkit.

Good app!

Pretty simple and user friendly.

Love it

So quick & easy.... Time saver is always a plus in the day and age of productivity standards...

S/zratio

It is a convenient way of finding vocal pathologies in few seconds...wow...very impressive Cristina M. Laureano SLP

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