Cotomo（コトモ：AIチャット・おしゃべりAI）: iPhone vs Android
Cotomo（コトモ：AIチャット・おしゃべりAI） gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
Cotomo（コトモ：AIチャット・おしゃべりAI） by Starley Inc. 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 ★
12k ratings, both stores
Measured
Best rank now
#32
Android · 
Entertainment Grossing
Entertainment GrossingMeasured
App Store
App details
App ID
6460890513
Publisher
Starley Inc.
Publisher country
Japan
On the store since
Feb 2024
2 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
9+
2 content notes below
Languages
8
EN ID JA KO ZH TH ZH VI
Size
122 MB
Also listed in
Lifestyle
Content notesInfrequent/Mild ContestsInfrequent/Mild Profanity or Crude Humor
Google Play
App details
App ID
jp.co.starley.cotomounity
Publisher
STARLEY INC.
Publisher country
Japan
Content rating
Everyone
Cotomo（コトモ：AIチャット・おしゃべりAI） downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | 1k+ | – |
| Google Play | 500+ | 500k+ Measured |
| Total | 1k+ Confidence | 500k+ 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.
Where Cotomo（コトモ：AIチャット・おしゃべりAI）'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How Cotomo（コトモ：AIチャット・おしゃべりAI） makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Cotomo Coin x14700 | |
| 2 | Cotomo Coin x525 | |
| 3 | Cotomo Coin x250 | |
| 4 | Cotomo Coin x500 | |
| 5 | Cotomo Coin x1000 | |
| 6 | Cotomo Coin x10000 | |
| 7 | Cotomo Coin x25000 | |
| 8 | Cotomo Coin x5000 | |
| 9 | Cotomo Coin x125 | |
| 10 | Cotomo Essentials Pack 9.99 |
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.1 ★ | 7.5k |
| Google Play | 4.0 ★ | 4.6k 14 written reviews |
| Both stores | 4.1 ★ weighted by ratings | 12k |
About Cotomo（コトモ：AIチャット・おしゃべりAI）
Cotomo is an AI conversation experience where stories, relationships, and unforgettable characters come to life.
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
■ Stories You Can Talk To
Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo
Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve
Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences
Experience immersive conversations with cinematic stage directions, or switch to everyday conversations.
■ Immersive Voice Audio
Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo
Design your own characters, customizing personalities, backstories, voices, and even quirks!
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
■ Stories You Can Talk To
Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo
Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve
Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences
Experience immersive conversations with cinematic stage directions, or switch to everyday conversations.
■ Immersive Voice Audio
Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo
Design your own characters, customizing personalities, backstories, voices, and even quirks!
Cotomo（コトモ：AIチャット・おしゃべりAI） iPhone
Cotomo（コトモ：AIチャット・おしゃべりAI） gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
Cotomo（コトモ：AIチャット・おしゃべりAI） is #51 in Entertainment Grossing in Japan and charting in 1 of 30 countries we track.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperStarley Inc.
CategoryEntertainment
PriceFree
Released
Rating★ 4.1 (7.5k)
Version3.4.475
Age rating9+
First seen by us 24 Sep 2026
24 Sep 2026Rating
4.1 ★
7.5k ratings
Measured
Best rank now
#51
Entertainment GrossingMeasured
Cotomo（コトモ：AIチャット・おしゃべりAI） on the App Store
App details
App ID
6460890513
Publisher
Starley Inc.
Publisher country
Japan
On the store since
Feb 2024
2 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
9+
2 content notes below
Languages
8
EN ID JA KO ZH TH ZH VI
Size
122 MB
Also listed in
Lifestyle
Content notesInfrequent/Mild ContestsInfrequent/Mild Profanity or Crude Humor
Cotomo（コトモ：AIチャット・おしゃべりAI） 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.
Where Cotomo（コトモ：AIチャット・おしゃべりAI）'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend in Cotomo（コトモ：AIチャット・おしゃべりAI） before Apple and Google take their fee.
How this is calculated
Top Grossing positions in every country we track, converted to dollars per store and country, sized by each market's published consumer spend and calibrated on revenue companies publish.
Business model: In-app purchase-led
How Cotomo（コトモ：AIチャット・おしゃべりAI） makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Cotomo Coin x14700 | |
| 2 | Cotomo Coin x525 | |
| 3 | Cotomo Coin x250 | |
| 4 | Cotomo Coin x500 | |
| 5 | Cotomo Coin x1000 | |
| 6 | Cotomo Coin x10000 | |
| 7 | Cotomo Coin x25000 | |
| 8 | Cotomo Coin x5000 | |
| 9 | Cotomo Coin x125 | |
| 10 | Cotomo Essentials Pack 9.99 |
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | EntertainmentGrossing | #51 |
| Japan | EntertainmentFree | #73 |
Apps near Cotomo（コトモ：AIチャット・おしゃべりAI） on the chart
Entertainment Grossing, around #51.
Ratings
App Store, worldwide.
Rating
4.1 ★
7.5k ratings
Measured
Ratings
7.5k
Measured
About Cotomo（コトモ：AIチャット・おしゃべりAI）
Cotomo is an AI conversation experience where stories, relationships, and unforgettable characters come to life.
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
■ Stories You Can Talk To
Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo
Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve
Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences
Experience immersive conversations with cinematic stage directions, or switch to everyday conversations.
■ Immersive Voice Audio
Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo
Design your own characters, customizing personalities, backstories, voices, and even quirks!
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
■ Stories You Can Talk To
Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo
Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve
Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences
Experience immersive conversations with cinematic stage directions, or switch to everyday conversations.
■ Immersive Voice Audio
Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo
Design your own characters, customizing personalities, backstories, voices, and even quirks!
Latest updates
3.4.475
• Create and edit characters more easily, including generating video icons.
• Improvements to voice preview, speaker indicators, and conversation audio.
• Smoother story and feed experiences, including sharing, comments, and notifications.
• Improvements to profiles, themes, and home-screen options.
3.4.462
• Find and customize characters more easily, including video icons for story characters.
• Get clearer progress and reward notifications for beginner missions.
• Create, edit, and publish stories more smoothly.
• Enjoy improvements to onboarding, search, and audio reliability.
3.4.437
- 画像生成機能の改善：チケットUIの刷新、所持数表示と不足判定の追加、AIメッセージからの生成フロー対応、通知表現の統一。
- ストーリー機能の強化：複数キャラクターのト書き表示と改行入力に対応。
- 安定性・最適化：メモリキャッシュの最適化、低スペック端末での安定性向上、Sentry報告の適正化、UI表示の自動調整など。
Store changes
What Cotomo（コトモ：AIチャット・おしゃべりAI） changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got smaller
185 MB → 115 MB (-38%)
Content notes changed
+ Infrequent/Mild Contests
Added 7 languages
+ ID + JA + KO + TH + VI + ZH + ZH
Cotomo Android
Cotomo gets 1k+ downloads a day worldwide (AppInsider estimate, October 2026, rounded down to a band).
Cotomo is #32 in Entertainment Grossing on Google Play in Japan and charting in 1 of 23 countries we track.
Updated 24 Oct 2026 · rankings refresh through the day
DeveloperStarley Inc.
CategoryEntertainment
PriceFree
Released
Installs500k+
Rating★ 4.0 (4.6k)
Updated
Content ratingEveryone
Rating
4.0 ★
4.6k ratings
Measured
Best rank now
#32
Entertainment GrossingMeasured
Cotomo on Google Play
App details
App ID
jp.co.starley.cotomounity
Publisher
STARLEY INC.
Publisher country
Japan
Content rating
Everyone
Cotomo 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 Cotomo'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend in Cotomo before Apple and Google take their fee.
How this is calculated
Top Grossing positions in every country we track, converted to dollars per store and country, sized by each market's published consumer spend and calibrated on revenue companies publish.
Business model: In-app purchase-led
How Cotomo makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Top in-app purchases · App Store US, most popular first
| 1 | Cotomo Coin x14700 | |
| 2 | Cotomo Coin x525 | |
| 3 | Cotomo Coin x250 | |
| 4 | Cotomo Coin x500 | |
| 5 | Cotomo Coin x1000 | |
| 6 | Cotomo Coin x10000 | |
| 7 | Cotomo Coin x25000 | |
| 8 | Cotomo Coin x5000 | |
| 9 | Cotomo Coin x125 | |
| 10 | Cotomo Essentials Pack 9.99 |
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | EntertainmentGrossing | #32 |
| Japan | All AppsGrossing | #109 |
| Japan | EntertainmentFree | #61 |
Apps near Cotomo on the chart
Entertainment Grossing, around #32.
Ratings
Google Play, worldwide.
Rating
4.0 ★
4.6k ratings
Measured
Ratings
4.6k
Measured
Written reviews
14
Measured
About Cotomo
Cotomo is an AI conversation experience where stories, relationships, and unforgettable characters come to life.
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
Whether you’re looking for late-night conversations, immersive roleplay, emotional companionship, or simply someone to talk to, there’s a Cotomo waiting for you.
■ Stories You Can Talk To Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences Experience immersive Romance and Roleplay with cinematic stage directions, or switch to Lite mode for casual everyday conversations.
■ Immersive Voice Audio Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo Design your own characters, customizing personalities, backstories, voices, and even quirks!
Discover thousands of unique AI personalities, step into interactive stories you can talk to, and build relationships that evolve through shared memories over time.
Whether you’re looking for late-night conversations, immersive roleplay, emotional companionship, or simply someone to talk to, there’s a Cotomo waiting for you.
■ Stories You Can Talk To Experience AI-powered interactive stories where your choices shape conversations, relationships, and outcomes.
■ Find Your Cotomo Meet characters with unique personalities, voices, emotions, and stories. From wholesome companions to chaotic troublemakers, every Cotomo feels different.
■ Relationships That Evolve Shared memories grow overtime, building relationships that are unique to you!
■ Multiple Conversation Experiences Experience immersive Romance and Roleplay with cinematic stage directions, or switch to Lite mode for casual everyday conversations.
■ Immersive Voice Audio Experience voiced AI conversations, including Japanese voice chats with live English subtitles.
■ Create Your Own Cotomo Design your own characters, customizing personalities, backstories, voices, and even quirks!