READING & Downloads & RevenueREADING & · App Store & Google Play
READING & by iPortfolio Inc. is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
📈iOSDropped out of every chart we track🆕iOSFirst spotted by AppInsider📦AndroidUpdated to version 4.37.6📦AndroidNow updating weekly📦iOSVersion 4.37.4🆕AndroidFirst spotted by AppInsider🆕AndroidReleased on Google Play🆕iOSReleased on the App Store
Full timeline · 12 events
- 📈READING & dropped out of every chart we trackiOSLast seen 4 Nov
- 🆕READING & first spotted by AppInsideriOSUnited States (found via similar)
- 📦READING & updated to version 4.37.6Android- We improved the usability of the app.
- 📦READING &: now updating weeklyAndroid4 updates in 30 days, after a quiet two months
- 📦READING & updated to version 4.37.5Android- We improved the usability of the app.
- 📦READING & version 4.37.4iOS- We improved the usability of the app.
- 📦READING & updated to version 4.37.4Android- We improved the usability of the app.
- 🆕READING & first spotted by AppInsiderAndroidSouth Korea
- 📦READING & updated to version 4.37.3Android- We improved the usability of the app.
- 📦READING & version 4.37.2Android- We improved the usability of the app.
- 🆕READING & released on Google PlayAndroid
- 🆕READING & released on the App StoreiOS
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.7 ★
835 ratings, both stores
Measured
Best rank now
#45
Android · 
Family Free
Family FreeMeasured
App Store
App details
App ID
1128287708
Publisher
iPortfolio Inc.
Publisher country
South Korea
On the store since
Jul 2016
10 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN KO
Size
212 MB
Also listed in
Books
Google Play
App details
App ID
com.spindle.tapas
Publisher
(주)아이포트폴리오
Publisher country
South Korea
Content rating
Everyone
READING & downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | 10k+ |
| Google Play | 50+ | 100k+ Measured |
| Total | 50+ Confidence | 100k+ Confidence |
How this is calculated
App Store: 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.
Where READING &'s downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
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
Both stores, across every country we track.
| Store | Best rank | Charting in | US Top Free | US Top Grossing |
|---|---|---|---|---|
| App Store | – | 0 of 30 countries | – | – |
| Google Play | #45 Family Free | 1 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Written reviews a week
under 1
Google Play
Lifetime rating
3.7★
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.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 3.4 ★ | 10 |
| Google Play | 3.7 ★ | 825 2 written reviews |
| Both stores | 3.7 ★ weighted by ratings | 835 |
About READING &
Meet the premium readers from the Oxford University Press and Collins at ‘READING &’!
Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &!
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &!
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
READING & App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperiPortfolio Inc.
CategoryEducation
PriceFree
Released
Rating★ 3.4 (10)
Version4.37.4
Age rating4+
First seen by us
1 Nov 2026
1 Nov 2026Installs (est.)10k+ worldwide
Rating
3.4 ★
10 ratings
Measured
READING & on the App Store
App details
App ID
1128287708
Publisher
iPortfolio Inc.
Publisher country
South Korea
On the store since
Jul 2016
10 years on the store
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN KO
Size
212 MB
Also listed in
Books
READING & 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.
Where READING &'s downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
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 |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
3.4 ★
10 ratings
Measured
Ratings
10
Measured
About READING &
Meet the premium readers from the Oxford University Press and Collins at ‘READING &’!
Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &!
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &!
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
Latest updates
4.37.4
- We improved the usability of the app.
More from iPortfolio Inc.
READING & Android
READING & is #45 in Family Free on Google Play in South Korea and charting in 1 of 23 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperiPortfolio Inc.
CategoryEducation
PriceFree
Released
Installs100k+
Rating★ 3.7 (825)
Updated
Content ratingEveryone
Rating
3.7 ★
825 ratings
Measured
Best rank now
#45
Family FreeMeasured
READING & on Google Play
App details
App ID
com.spindle.tapas
Publisher
(주)아이포트폴리오
Publisher country
South Korea
Content rating
Everyone
READING & 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.
Where READING &'s downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
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 on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | FamilyFree | #45 |
Apps near READING & on the chart
Family Free, around #45.
Ratings
Google Play, worldwide.
Rating
3.7 ★
825 ratings
Measured
Ratings
825
Measured
Written reviews
2
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Written reviews a week
under 1
Google Play
Lifetime rating
3.7★
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.
About READING &
Oxford Reading Tree (ORT) and Collins Big Cat series are now available at READING &!
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
If you have any questions while using the app, please contact our customer service center (1566-2246).
ORT, the world’s best-seller readers used in 80% of the primary schools in the UK!
Big Cat, is the popular series beloved by over 10,000 libraries in the primary schools in the UK!
Have your own digital library that houses a massive collection of high-quality English books, and enjoy reading wherever you are and whenever you want!
Awesome #1. 5 times more efficient
5 steps of multi-dimensional reading system is applied in every book.
READING & transformed one-dimensional paper books to multi-functional digital contents that carries out the holistic process of language acquisition: vocabulary game, listening, reading, speaking, spelling check and after activities.
Users can benefit from 5 times more efficient language learning system through our productive 5-Step Multi-Dimension Reading.
Awesome #2. Up to 4 different devices
Use up to 4 different mobile devices at a time! Every reading data synchronizes.
We also support offline mode. Download your books and read them offline.
Awesome #3. Additional features for your self-study
- Both British & American pronunciation available (some books might provide only one)
- Audio speed control
- Record your own speaking
- Listen to the audio per page or sentence
- Built-in dictionary (Oxford English-Korean dictionary with 185,000 words)
- Personalized vocabulary list
- Pen tool: highlight or underline important vocabulary, make in-page highlights
- Reading Diary: store your own speaking files
This application may require access to the permissions below (to avoid the malfunction).
- [Optional] Microphone: to record audio in Stage 3 and 4
- [Optional] Photos: to register your profile picture
Instructions to turn the permission off:
- Microphone: Settings > Privacy > App permissions > Microphone > turn off READING &
- Photo: Settings > Privacy > App permissions > Storage > turn off READING &
If you disable access for these permissions, you may use the app but several features of your device may no longer function as intended.
If you have any questions while using the app, please contact our customer service center (1566-2246).
What's new in 4.37.6
- We improved the usability of the app.