iKasa Downloads & RevenueiKasa – Umbrella Sharing · App Store & Google Play
iKasa – Umbrella Sharing by 株式会社NatureInnovationGroup is on App Store and Google Play. Active Users (MAU & DAU), Downloads, rankings, keywords, revenue, and rating totals.
iKasa – Umbrella Sharing update history & changes
Last change · 15 events since 7 Jun 2020Full timeline ↓✏️iOSNew screenshots⭐iOSRatings taking off in Japan📦iOSUpdated to version 1.137.0⭐iOSPassed 100 ratings📈iOSEntered the top 100📈iOSCharting in a new country📦iOSUpdated to version 1.136.6🆕iOSFirst spotted by AppInsider🆕AndroidFirst spotted by AppInsider🆕iOSReleased on the App Store
Full timeline · 15 events
- ✏️iKasa – Umbrella Sharing: new screenshotsiOS3 screenshots (was 3) · JP
- ✏️iKasa – Umbrella Sharing added 4 languagesiOS+ EN + KO + ZH + ZH
- 📦iKasa – Umbrella Sharing updated to version 1.137.0iOS- Added Visitor mode, which lets you rent and return umbrellas in English.
- 📈iKasa – Umbrella Sharing entered the top 100iOSTop Free · Lifestyle · JP
- 📈iKasa – Umbrella Sharing charting in a new countryiOSTaiwan
- 📦iKasa – Umbrella Sharing updated to version 1.136.6iOS- 軽微な不具合を修正しました
- 📦iKasa – Umbrella Sharing updated to version 1.136.3iOS- 軽微な不具合を修正しました
- 📦iKasa – Umbrella Sharing updated to version 1.136.1iOS- 軽微な不具合の修正をしました
- 🆕iKasa – Umbrella Sharing first spotted by AppInsideriOS#45 in Top Free · Lifestyle · Japan
- 🆕iKasa – Umbrella Sharing first spotted by AppInsiderAndroidJapan
- 📦iKasa – Umbrella Sharing version 1.136.0iOS- 軽微な不具合を修正しました
- 🆕iKasa – Umbrella Sharing 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
4.5 ★
7.7k ratings, both stores
Measured
Best rank now
#149
App Store · 
Lifestyle Free
Lifestyle FreeMeasured
New ratings a week
65
▲ ×11+ vs the 2 weeks before
Measured
App Store
App details
App ID
1506370081
Publisher
NATURE INNOVATION GROUP, K.K.
Publisher country
Japan
On the store since
Jun 2020
6 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
5
EN JA KO ZH ZH
Size
153 MB
Also listed in
Utilities
Google Play
App details
App ID
com.nig.ikasa
Publisher
NATURE INNOVATION GROUP, K.K.
Publisher country
Japan
Content rating
Everyone
iKasa – Umbrella Sharing downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| App Store | – | – |
| Google Play | – | 100k+ Measured |
| Total | – | 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.
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 | #149 Lifestyle Free | 1 of 30 countries | – | – |
| Google Play | – | 0 of 23 countries | – | – |
Full chart lists: App Store · Google Play.
Review momentum
ⓘ How we measure thisNew ratings a week
65
▲ ×11+ vs the 2 weeks before
Recent ratings
4.5★
vs 4.5★ lifetime
Review momentum
90/100
faster than 90% of Lifestyle 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 | 4.5 ★ | 7.7k |
| Google Play | 4.5 ★ | – |
| Both stores | 4.5 ★ weighted by ratings | 7.7k |
About iKasa – Umbrella Sharing
Caught in the rain in Japan? You don't need to buy another plastic umbrella.
iKasa is Japan's umbrella sharing service. Pick up an umbrella at a stand near you, keep it as long as you need, and return it at any other stand. No deposit. No key.
◆ HOW IT WORKS
Setting up
1. Download the app and choose English
2. Sign in with Apple, Google or LINE
3. Register a credit or debit card, or Apple Pay
Renting
1. Find a stand near you on the map
2. Tap Rent and scan the QR code on the stand
3. Turn the handle to the left and slide the umbrella out
Returning
1. Find any stand on the map (you do not have to go back to where you rented)
2. Tap Return and scan the QR code
3. Fold the umbrella neatly and slide it back in
◆ WHERE YOU CAN USE IT
- Tokyo
- Kanagawa
- Osaka
- Saitama
- Chiba
- Hyogo
- Kyoto
- Ibaraki
- Aichi
- Nara
- Okayama
Open the map in the app to see the stands around you.
◆ WHY IT'S CONVENIENT
- Rent anywhere, return anywhere — the two do not have to match
- Stands at train stations, convenience stores, shops, offices and universities
- No need to check the forecast before you go out
- Return it when the rain stops and travel light again
- Just scan a QR code. No counter, no paperwork, no deposit
- No Japanese phone number or bank account needed
- No wet umbrella to carry around a museum, a restaurant or a shop
- No umbrella taking up space in your luggage
- Glass fiber ribs that hold up in typhoons, heavy rain and snow
- Large enough for two people, and usable as a sun umbrella on hot days
◆ WHY IT'S GOOD VALUE
- From ¥140 for up to one hour
- ¥210 for a full day, ¥420 for two days
- No subscription and no sign-up fee
- Far cheaper than buying an umbrella you will leave behind
- You pay only for the time you keep it
◆ PLEASE NOTE
Hokkaido, Fukuoka and Saga (except Tosu) use a different type of umbrella that this mode cannot unlock, so you can neither rent nor return there. If you are carrying an umbrella, please return it at a stand outside those areas before you leave Japan.
If an umbrella is kept for more than 90 days it is treated as lost, and the total charge reaches ¥3,384.
iKasa is Japan's umbrella sharing service. Pick up an umbrella at a stand near you, keep it as long as you need, and return it at any other stand. No deposit. No key.
◆ HOW IT WORKS
Setting up
1. Download the app and choose English
2. Sign in with Apple, Google or LINE
3. Register a credit or debit card, or Apple Pay
Renting
1. Find a stand near you on the map
2. Tap Rent and scan the QR code on the stand
3. Turn the handle to the left and slide the umbrella out
Returning
1. Find any stand on the map (you do not have to go back to where you rented)
2. Tap Return and scan the QR code
3. Fold the umbrella neatly and slide it back in
◆ WHERE YOU CAN USE IT
- Tokyo
- Kanagawa
- Osaka
- Saitama
- Chiba
- Hyogo
- Kyoto
- Ibaraki
- Aichi
- Nara
- Okayama
Open the map in the app to see the stands around you.
◆ WHY IT'S CONVENIENT
- Rent anywhere, return anywhere — the two do not have to match
- Stands at train stations, convenience stores, shops, offices and universities
- No need to check the forecast before you go out
- Return it when the rain stops and travel light again
- Just scan a QR code. No counter, no paperwork, no deposit
- No Japanese phone number or bank account needed
- No wet umbrella to carry around a museum, a restaurant or a shop
- No umbrella taking up space in your luggage
- Glass fiber ribs that hold up in typhoons, heavy rain and snow
- Large enough for two people, and usable as a sun umbrella on hot days
◆ WHY IT'S GOOD VALUE
- From ¥140 for up to one hour
- ¥210 for a full day, ¥420 for two days
- No subscription and no sign-up fee
- Far cheaper than buying an umbrella you will leave behind
- You pay only for the time you keep it
◆ PLEASE NOTE
Hokkaido, Fukuoka and Saga (except Tosu) use a different type of umbrella that this mode cannot unlock, so you can neither rent nor return there. If you are carrying an umbrella, please return it at a stand outside those areas before you leave Japan.
If an umbrella is kept for more than 90 days it is treated as lost, and the total charge reaches ¥3,384.
iKasa – Umbrella Sharing App Store
アイカサ -傘レンタルアプリ- iKASA
iKasa – Umbrella Sharing is #149 in Lifestyle Free in Japan and charting in 1 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
Developer株式会社NatureInnovationGroup
CategoryLifestyle
PriceFree
Released
Rating★ 4.5 (7.7k)
Version1.137.0
Age rating4+
First seen by us 29 Sep 2026
29 Sep 2026Rating
4.5 ★
7.7k ratings
Measured
Best rank now
#149
Lifestyle FreeMeasured
New ratings a week
65
▲ ×11+ vs the 2 weeks before
Measured
iKasa – Umbrella Sharing on the App Store
App details
App ID
1506370081
Publisher
NATURE INNOVATION GROUP, K.K.
Publisher country
Japan
On the store since
Jun 2020
6 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
5
EN JA KO ZH ZH
Size
153 MB
Also listed in
Utilities
iKasa – Umbrella Sharing 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 |
|---|---|---|
| Japan | LifestyleFree | #149 |
Apps near iKasa – Umbrella Sharing on the chart
Lifestyle Free, around #149.
Ratings
App Store, worldwide.
Rating
4.5 ★
7.7k ratings
Measured
Ratings
7.7k
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
65
▲ ×11+ vs the 2 weeks before
Recent ratings
4.5★
vs 4.5★ lifetime
Review momentum
90/100
faster than 90% of Lifestyle 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 iKasa – Umbrella Sharing
Caught in the rain in Japan? You don't need to buy another plastic umbrella.
iKasa is Japan's umbrella sharing service. Pick up an umbrella at a stand near you, keep it as long as you need, and return it at any other stand. No deposit. No key.
◆ HOW IT WORKS
Setting up
1. Download the app and choose English
2. Sign in with Apple, Google or LINE
3. Register a credit or debit card, or Apple Pay
Renting
1. Find a stand near you on the map
2. Tap Rent and scan the QR code on the stand
3. Turn the handle to the left and slide the umbrella out
Returning
1. Find any stand on the map (you do not have to go back to where you rented)
2. Tap Return and scan the QR code
3. Fold the umbrella neatly and slide it back in
◆ WHERE YOU CAN USE IT
- Tokyo
- Kanagawa
- Osaka
- Saitama
- Chiba
- Hyogo
- Kyoto
- Ibaraki
- Aichi
- Nara
- Okayama
Open the map in the app to see the stands around you.
◆ WHY IT'S CONVENIENT
- Rent anywhere, return anywhere — the two do not have to match
- Stands at train stations, convenience stores, shops, offices and universities
- No need to check the forecast before you go out
- Return it when the rain stops and travel light again
- Just scan a QR code. No counter, no paperwork, no deposit
- No Japanese phone number or bank account needed
- No wet umbrella to carry around a museum, a restaurant or a shop
- No umbrella taking up space in your luggage
- Glass fiber ribs that hold up in typhoons, heavy rain and snow
- Large enough for two people, and usable as a sun umbrella on hot days
◆ WHY IT'S GOOD VALUE
- From ¥140 for up to one hour
- ¥210 for a full day, ¥420 for two days
- No subscription and no sign-up fee
- Far cheaper than buying an umbrella you will leave behind
- You pay only for the time you keep it
◆ PLEASE NOTE
Hokkaido, Fukuoka and Saga (except Tosu) use a different type of umbrella that this mode cannot unlock, so you can neither rent nor return there. If you are carrying an umbrella, please return it at a stand outside those areas before you leave Japan.
If an umbrella is kept for more than 90 days it is treated as lost, and the total charge reaches ¥3,384.
iKasa is Japan's umbrella sharing service. Pick up an umbrella at a stand near you, keep it as long as you need, and return it at any other stand. No deposit. No key.
◆ HOW IT WORKS
Setting up
1. Download the app and choose English
2. Sign in with Apple, Google or LINE
3. Register a credit or debit card, or Apple Pay
Renting
1. Find a stand near you on the map
2. Tap Rent and scan the QR code on the stand
3. Turn the handle to the left and slide the umbrella out
Returning
1. Find any stand on the map (you do not have to go back to where you rented)
2. Tap Return and scan the QR code
3. Fold the umbrella neatly and slide it back in
◆ WHERE YOU CAN USE IT
- Tokyo
- Kanagawa
- Osaka
- Saitama
- Chiba
- Hyogo
- Kyoto
- Ibaraki
- Aichi
- Nara
- Okayama
Open the map in the app to see the stands around you.
◆ WHY IT'S CONVENIENT
- Rent anywhere, return anywhere — the two do not have to match
- Stands at train stations, convenience stores, shops, offices and universities
- No need to check the forecast before you go out
- Return it when the rain stops and travel light again
- Just scan a QR code. No counter, no paperwork, no deposit
- No Japanese phone number or bank account needed
- No wet umbrella to carry around a museum, a restaurant or a shop
- No umbrella taking up space in your luggage
- Glass fiber ribs that hold up in typhoons, heavy rain and snow
- Large enough for two people, and usable as a sun umbrella on hot days
◆ WHY IT'S GOOD VALUE
- From ¥140 for up to one hour
- ¥210 for a full day, ¥420 for two days
- No subscription and no sign-up fee
- Far cheaper than buying an umbrella you will leave behind
- You pay only for the time you keep it
◆ PLEASE NOTE
Hokkaido, Fukuoka and Saga (except Tosu) use a different type of umbrella that this mode cannot unlock, so you can neither rent nor return there. If you are carrying an umbrella, please return it at a stand outside those areas before you leave Japan.
If an umbrella is kept for more than 90 days it is treated as lost, and the total charge reaches ¥3,384.
Latest updates
1.137.0
- Added Visitor mode, which lets you rent and return umbrellas in English.
1.136.6
- 軽微な不具合を修正しました
1.136.3
- 軽微な不具合を修正しました
Store changes
What iKasa – Umbrella Sharing changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New screenshots
3 screenshots (was 3)
Added 4 languages
+ EN + KO + ZH + ZH
アイカサ-傘レンタルアプリ。いつでもどこでも雨に困らない。 Android
Not in a tracked Google Play top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
Developeri-kasa
CategoryLifestyle
PriceFree
Released–
Installs100k+
Rating★ 4.5 (0)
Updated–
Content ratingEveryone
Rating
4.5 ★
0 ratings
Measured
アイカサ-傘レンタルアプリ。いつでもどこでも雨に困らない。 on Google Play
App details
App ID
com.nig.ikasa
Publisher
NATURE INNOVATION GROUP, K.K.
Publisher country
Japan
Content rating
Everyone
アイカサ-傘レンタルアプリ。いつでもどこでも雨に困らない。 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.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
4.5 ★
0 ratings
Measured
Ratings
0
Measured
About アイカサ-傘レンタルアプリ。いつでもどこでも雨に困らない。
◆How to Use
Register
1. Download the app
2. Register your payment method (LINE Pay/Credit Card/Carrier Billing)
Rent
1. Search for nearby spots on the map
2. Press the "Rent" button to unlock
3. Pull out your umbrella to begin renting
Return
1. Search for nearby spots (unlike the rented spot, you can return anywhere!)
2. Tap "Return" to unlock the umbrella stand
3. Fold your umbrella neatly and return it to the stand
◆Locations
Kanto
- JR East
- Odakyu Line
- Seibu Shinjuku Line
- Toei Shinjuku Line
- Other Tokyo Areas
- Omiya Area
- Mito Area
Kansai
- Osaka Area
- Kyoto Area
Kyushu
- Fukuoka Area
- Saga Area
◆Featured Media
NHK
WBS
Sukkiri and over 300 other programs!
◆ The Convenience of i-Kasa
・Rent anywhere and return anywhere you like
・Rental and return locations can be different (sharing)
・Rent anywhere: train stations, offices, universities, department stores, convenience stores, shops, and even around town
・Go out without worrying about the weather
・No need to check the weather forecast
・Return as soon as it's sunny! Hands-free and comfortable!
・No more getting wet
・Easy and quick with QR code
・Unlimited use plan means no need to worry about returning it separately
・Multiple locations nationwide! No need to worry about rain while on a business trip or vacation
・For a smarter life. Enrich your life. Add a new, positive lifestyle.
・The hottest sharing and IoT service!
◆ The Value of i-Kasa
・Incredibly cheap! Only ¥140 for under an hour!
・Free registration!
・Best value for money! Save money
・Many campaigns and coupons available
・Far cheaper than buying an umbrella
◆ What i-Kasa is all about
・All-plastic umbrellas are easy to recycle and disassemble!
・Sustainable, environmentally friendly umbrellas (umbrellashare)
・Made of fiberglass, they're strong and unbreakable! Even in typhoons, heavy rain, and snow.
・Can also be used as a parasol to prevent heatstroke.
・Smart umbrella stand allows you to quickly borrow an umbrella even if you're in a hurry because of a sudden downpour.
・A system and business model that is kind to people, the earth, and everyday life.
◆What AI-Kasa Can Solve
・Mass consumption and waste of plastic umbrellas
・Eliminating the accumulation of plastic umbrellas at home
・No need to worry about sudden rain showers or showers
・No more getting wet in the rain.
・Check the weather forecast and news during busy morning hours, so you don't have to carry an umbrella from home for the afternoon rain. Time-saving and stress-relieving.
◆AI-Kasa's Vision
Japan consumes and disposes of 80 million umbrellas every year, causing a serious plastic waste problem and earning a negative global reputation.
AI-Kasa wants to work with you to change this disposable culture.
By "sharing" umbrellas that were previously purchased individually,
we will reduce the production and disposal of unnecessary umbrellas and create a sustainable society.
I-Kasa will change modern society through umbrellas,
creating a society and global environment that will
Register
1. Download the app
2. Register your payment method (LINE Pay/Credit Card/Carrier Billing)
Rent
1. Search for nearby spots on the map
2. Press the "Rent" button to unlock
3. Pull out your umbrella to begin renting
Return
1. Search for nearby spots (unlike the rented spot, you can return anywhere!)
2. Tap "Return" to unlock the umbrella stand
3. Fold your umbrella neatly and return it to the stand
◆Locations
Kanto
- JR East
- Odakyu Line
- Seibu Shinjuku Line
- Toei Shinjuku Line
- Other Tokyo Areas
- Omiya Area
- Mito Area
Kansai
- Osaka Area
- Kyoto Area
Kyushu
- Fukuoka Area
- Saga Area
◆Featured Media
NHK
WBS
Sukkiri and over 300 other programs!
◆ The Convenience of i-Kasa
・Rent anywhere and return anywhere you like
・Rental and return locations can be different (sharing)
・Rent anywhere: train stations, offices, universities, department stores, convenience stores, shops, and even around town
・Go out without worrying about the weather
・No need to check the weather forecast
・Return as soon as it's sunny! Hands-free and comfortable!
・No more getting wet
・Easy and quick with QR code
・Unlimited use plan means no need to worry about returning it separately
・Multiple locations nationwide! No need to worry about rain while on a business trip or vacation
・For a smarter life. Enrich your life. Add a new, positive lifestyle.
・The hottest sharing and IoT service!
◆ The Value of i-Kasa
・Incredibly cheap! Only ¥140 for under an hour!
・Free registration!
・Best value for money! Save money
・Many campaigns and coupons available
・Far cheaper than buying an umbrella
◆ What i-Kasa is all about
・All-plastic umbrellas are easy to recycle and disassemble!
・Sustainable, environmentally friendly umbrellas (umbrellashare)
・Made of fiberglass, they're strong and unbreakable! Even in typhoons, heavy rain, and snow.
・Can also be used as a parasol to prevent heatstroke.
・Smart umbrella stand allows you to quickly borrow an umbrella even if you're in a hurry because of a sudden downpour.
・A system and business model that is kind to people, the earth, and everyday life.
◆What AI-Kasa Can Solve
・Mass consumption and waste of plastic umbrellas
・Eliminating the accumulation of plastic umbrellas at home
・No need to worry about sudden rain showers or showers
・No more getting wet in the rain.
・Check the weather forecast and news during busy morning hours, so you don't have to carry an umbrella from home for the afternoon rain. Time-saving and stress-relieving.
◆AI-Kasa's Vision
Japan consumes and disposes of 80 million umbrellas every year, causing a serious plastic waste problem and earning a negative global reputation.
AI-Kasa wants to work with you to change this disposable culture.
By "sharing" umbrellas that were previously purchased individually,
we will reduce the production and disposal of unnecessary umbrellas and create a sustainable society.
I-Kasa will change modern society through umbrellas,
creating a society and global environment that will