Sounds of Speech Downloads & RevenueSounds of Speech · App Store
Sounds of Speech is #166 in Education Paid in China and charting in 4 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
CategoryEducation
Price3.99 USD
Released
Rating★ 2.3 (46)
Version4.0.0
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)5k+ worldwide
📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 26 events in the last 12 months
- 📈Sounds of Speech entered the top 100Top Paid · Education · DE
- 📈Sounds of Speech charting in a new countryMexico
- 📈Sounds of Speech entered the top 10Top Paid · Education · AU
- 📈Sounds of Speech entered the top 10 on iPad · Top Paid All AppsAR
- 📈Sounds of Speech new best rank in the overall chart: #69Top Paid · All Apps · CO
- 📈Sounds of Speech entered the top 100Top Paid · All Apps · CO
- 📈Sounds of Speech entered the top 10Top Paid · Education · ID
- 📈Sounds of Speech charting in a new country in 2 chartsColombia · Indonesia
- 📈Sounds of Speech entered the top 100Top Paid · Education · JP
- 📈Sounds of Speech new best rank in the overall chart: #75Top Paid · All Apps · SE
- 📈Sounds of Speech entered the top 100Top Paid · All Apps · SE
- 📈Sounds of Speech charting in a new countrySweden
- 📈Sounds of Speech charting in a new countryTurkey
- 📈Sounds of Speech new best rank in the overall chart: #103Top Paid · All Apps · VN
- 📈Sounds of Speech charting in a new countryVietnam
- 📈Sounds of Speech new best rank in the overall chart: #137Top Paid · All Apps · ES
- 📈Sounds of Speech charting in a new countrySpain
- 📈Sounds of Speech entered the top 100Top Paid · Education · GB
- 📈Sounds of Speech charting in a new countryUnited Kingdom
- 📈Sounds of Speech entered the top 100Top Paid · Education · US
- 📈Sounds of Speech entered the top 10Top Paid · Education · SA
- 📈Sounds of Speech entered the top 100 in 3 chartsTop Paid · Education · AU · Top Paid · Education · CA · Top Paid · Education · CN
- 📈Sounds of Speech charting in a new country in 2 chartsAustralia · China
- 📈Sounds of Speech charting in a new country in 3 chartsJapan · Thailand · United States
- 🆕Sounds of Speech first spotted by AppInsider#75 in Top Paid · Education · Saudi Arabia
- 🆕Sounds of Speech released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
2.3 ★
46 ratings
Measured
Best rank now
#166
Education PaidMeasured
Sounds of Speech on the App Store
App details
App ID
780656219
Publisher
University of Iowa Research Foundation
On the store since
Jan 2014
12 years on the store
Minimum OS
iOS 13.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
109 MB
Sounds of Speech downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | EducationPaid | #166 |
 South Korea | EducationPaid | #83 |
 Brazil | EducationPaid | #91 |
| Saudi Arabia | EducationPaid | #88 |
Apps near Sounds of Speech on the chart
Education Paid, around #166.
Ratings
App Store, worldwide.
Rating
2.3 ★
46 ratings
Measured
Ratings
46
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
2.9★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Education apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Sounds of Speech
From the 40 most recent App Store reviews in the US.
Mostly negative (28% of recent reviews give 4–5 stars). People like it for its features and content. The main complaints are about missing features or content, and price and subscriptions. Recent reviews are more negative than earlier ones.
What people like
- Features & content: “A great tool during my schooling”
Common complaints
- Features & content: “There were no slow motion or stop options”
- Price & subscription: “It is truly a waste of money”
- Crashes & bugs: “Maybe just really broken right now?”
- Updates: “I just updated my itunes and downloaded the application but it is not playing”
About Sounds of Speech
Notice: This Contains English Only Content. Spanish and German not included.
This application was originally designed at the University of Iowa to help students learning how the sounds of different languages are produced. Since its production, it has become a milestone for phonetics teaching tools around the globe.
Sounds of Speech™ provides a comprehensive understanding of how, physiologically, each of the speech sounds of American English is formed. It includes animations, videos, and audio samples that describe the essential features of each of the consonants and vowels of American English. Sounds of Speech™ is especially useful for students studying English as a second language. Features include:
This application was originally designed at the University of Iowa to help students learning how the sounds of different languages are produced. Since its production, it has become a milestone for phonetics teaching tools around the globe.
Sounds of Speech™ provides a comprehensive understanding of how, physiologically, each of the speech sounds of American English is formed. It includes animations, videos, and audio samples that describe the essential features of each of the consonants and vowels of American English. Sounds of Speech™ is especially useful for students studying English as a second language. Features include:
Latest updates
4.0.0
Updates under the hood.