900s: iPhone vs Android
900s by Unit U+2467 GmbH is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.1 ★
16 ratings, both stores
Measured
Best rank now
#128
Android · 
Books & Reference Free
Books & Reference FreeMeasured
App Store
App details
App ID
6746439317
Publisher
Unit U+2467 GmbH
Content rating
4+
Google Play
App details
App ID
com.apeunit.abc.app
Publisher
Unit 8/POC
Content rating
Everyone
900s downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 1k+ |
| Google Play | – | 10k+ Measured |
| Total | – | 10k+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
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.
Business model: In-app purchase-led
How 900s makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.1 ★ | 16 |
| Google Play | 4.1 ★ | – |
| Both stores | 4.1 ★ weighted by ratings | 16 |
About 900s
Meet 900s – the smartest way to learn in just 15 minutes a day.
900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time – it feels like chatting with the author.
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!
Terms of Use: https://www.900s.app/legal#terms
900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time – it feels like chatting with the author.
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!
Terms of Use: https://www.900s.app/legal#terms
900s iPhone
Not in any tracked top chart right now.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperUnit U+2467 GmbH
CategoryEducation
PriceFree
Released
Rating★ 4.1 (16)
Version1.34.1
Age rating4+
First seen by us 26 Sep 2026
26 Sep 2026Installs (est.)1k+ worldwide
Rating
4.1 ★
16 ratings
Measured
900s on the App Store
App details
App ID
6746439317
Publisher
Unit U+2467 GmbH
Content rating
4+
900s 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. iPhone 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.
Business model: In-app purchase-led
How 900s makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.1 ★
16 ratings
Measured
Ratings
16
Measured
About 900s
Meet 900s – the smartest way to learn in just 15 minutes a day.
900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time – it feels like chatting with the author.
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!
Terms of Use: https://www.900s.app/legal#terms
900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time – it feels like chatting with the author.
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!
Terms of Use: https://www.900s.app/legal#terms
Latest updates
1.34.1
Bug fixes
900s Android
900s is #128 in Books & Reference Free on Google Play in Germany and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperUnit 8/POC
CategoryBooks & Reference
PriceFree
Released
Installs10k+
Rating★ 4.1 (0)
Updated–
Content ratingEveryone
Rating
4.1 ★
0 ratings
Measured
Best rank now
#128
Books & Reference FreeMeasured
900s on Google Play
App details
App ID
com.apeunit.abc.app
Publisher
Unit 8/POC
Content rating
Everyone
900s downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. 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.
Business model: In-app purchase-led
How 900s makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Germany | Books & ReferenceFree | #128 |
Apps near 900s on the chart
Books & Reference Free, around #128.
Ratings
Google Play, worldwide.
Rating
4.1 ★
0 ratings
Measured
Ratings
0
Measured
About 900s
900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time—it feels like chatting with the author.
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!
Key features
• Discover curated book episodes on technology, business, science, and more
• Search by keyword or browse by genre to find your next listen fast
• Mini player with 15-sec skip/back, background audio, and quick resume
• Real-time Interactive Audio Mode powered by AI & WebRTC
• Personal Library with Continue Listening & Finished lists
• Optional Premium upgrade: unlimited listening, ad-free, offline downloads
Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor.
Download now and start your 15-minute learning journey!