Y!mobile メール Android
Y!mobile メール gets 100+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Y!mobile メール is #44 in Communication Free on Google Play in Japan and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperYahoo! JAPAN (LY Corporation)
CategoryCommunication
PriceFree
Released–
Installs10M+
Rating★ 3.4 (36k)
Updated
Content ratingEveryone
Rating
3.4 ★
36k ratings
Measured
Best rank now
#44
Communication FreeMeasured
Y!mobile メール on Google Play
App details
App ID
jp.co.yahoo.android.ymobile.mail
Publisher
Yahoo! JAPAN (LY Corporation)
Content rating
Everyone
Y!mobile メール 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 Y!mobile メール'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.
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | CommunicationFree | #44 |
Apps near Y!mobile メール on the chart
Communication Free, around #44.
Ratings
Google Play, worldwide.
Rating
3.4 ★
36k ratings
Measured
Ratings
36k
Measured
Written reviews
2
Measured
About Y!mobile メール
Y!mobile Mail is the official Y!mobile email app.
You can manage multiple email accounts at once, including Y!mobile email address (@yahoo.ne.jp), MMS/SMS/+Message (*1), Yahoo! Mail, Gmail, etc. (*2), depending on the purpose. This is the definitive email app that has two display formats that you can choose from.
~ Two display formats to choose from depending on the application ~
[Conversational]
It is a format that allows you to easily exchange messages in a chat style, and it is suitable for casual communication with family and friends because it allows you to see a list of previous exchanges and the flow of conversations.
Additionally, you can automatically sort emails from addresses other than those registered in your phone book, so you won't miss any important emails.
[List type]
This display format is similar to that of a regular mailer, and allows you to check the emails that have arrived in your inbox or personal folders in chronological order. The filtering function also supports automatic folder sorting.
Additionally, you can switch to conversational mode with a single tap from the email details screen, so you can immediately check the conversation up to that point.
*1
・The MMS that can be used are as follows.
@ymobile.ne.jp
@wcm.ne.jp
@emobile-s.ne.jp
@y-mobile.ne.jp
@pdx.ne.jp
@di.pdx.ne.jp
@dj.pdx.ne.jp
@dk.pdx.ne.jp
@wm.pdx.ne.jp
@willcom.com
・MMS and +Message can only be used when using a SIM contracted with Y!mobile or SoftBank. Even if you have a contract with Y!mobile or SoftBank, some contract plans may not be available.
・+Message is not available on some devices
*2
Compatible with docomo mail
------------------------
When using Y!mobile Mail, please check the Y!mobile Mail Terms of Use before using.
・Y!mobile Mail Terms of Use https://ymobile.jp/service/ymobile/mail/eula_ymobilemail.html
Please check the LINE Yahoo common terms of use (including software rules (guidelines)) before using the Y!mobile email app.
・LINE Yahoo common terms of use https://www.lycorp.co.jp/ja/company/terms/
・Software rules (guidelines) https://www.lycorp.co.jp/ja/company/terms/#anc2
・Yahoo! Mail Guidelines https://mail.yahoo.co.jp/info/guidelines/mail.html
Y!mobile Mail is provided by Yahoo! JAPAN, which also provides Yahoo! Mail.
- If you allow "access to notifications" in the Android OS settings, other apps may read the information notified by this app (including the sender of new emails, subject information, etc.). Please see below for details. https://support.yahoo-net.jp/SccYjcommon/s/article/H000012101
You can manage multiple email accounts at once, including Y!mobile email address (@yahoo.ne.jp), MMS/SMS/+Message (*1), Yahoo! Mail, Gmail, etc. (*2), depending on the purpose. This is the definitive email app that has two display formats that you can choose from.
~ Two display formats to choose from depending on the application ~
[Conversational]
It is a format that allows you to easily exchange messages in a chat style, and it is suitable for casual communication with family and friends because it allows you to see a list of previous exchanges and the flow of conversations.
Additionally, you can automatically sort emails from addresses other than those registered in your phone book, so you won't miss any important emails.
[List type]
This display format is similar to that of a regular mailer, and allows you to check the emails that have arrived in your inbox or personal folders in chronological order. The filtering function also supports automatic folder sorting.
Additionally, you can switch to conversational mode with a single tap from the email details screen, so you can immediately check the conversation up to that point.
*1
・The MMS that can be used are as follows.
@ymobile.ne.jp
@wcm.ne.jp
@emobile-s.ne.jp
@y-mobile.ne.jp
@pdx.ne.jp
@di.pdx.ne.jp
@dj.pdx.ne.jp
@dk.pdx.ne.jp
@wm.pdx.ne.jp
@willcom.com
・MMS and +Message can only be used when using a SIM contracted with Y!mobile or SoftBank. Even if you have a contract with Y!mobile or SoftBank, some contract plans may not be available.
・+Message is not available on some devices
*2
Compatible with docomo mail
------------------------
When using Y!mobile Mail, please check the Y!mobile Mail Terms of Use before using.
・Y!mobile Mail Terms of Use https://ymobile.jp/service/ymobile/mail/eula_ymobilemail.html
Please check the LINE Yahoo common terms of use (including software rules (guidelines)) before using the Y!mobile email app.
・LINE Yahoo common terms of use https://www.lycorp.co.jp/ja/company/terms/
・Software rules (guidelines) https://www.lycorp.co.jp/ja/company/terms/#anc2
・Yahoo! Mail Guidelines https://mail.yahoo.co.jp/info/guidelines/mail.html
Y!mobile Mail is provided by Yahoo! JAPAN, which also provides Yahoo! Mail.
- If you allow "access to notifications" in the Android OS settings, other apps may read the information notified by this app (including the sender of new emails, subject information, etc.). Please see below for details. https://support.yahoo-net.jp/SccYjcommon/s/article/H000012101
What's new
◆Version 4.5.0
・新着メール一覧に既読メールを表示できるようになりました。
・新着メール通知に「1時間後にリマインド」ボタンを表示するか設定できるようになりました。
・メール一覧のその他メニューからメールの選択操作ができるようになりました。
・軽微な機能改修を行いました。
◆Version 4.4.12
・軽微な不具合を解消しました。
◆Version 4.4.11
・Android OS 7.0～7.1.2の端末でのサポートを終了しました。
・MMSアカウントで認証情報が確認できるようになりました。
・軽微な機能改修を行いました。
◆Version 4.4.10
・軽微な不具合を解消しました。
◆Version 4.4.9
・通知から新着などを起動できるクイックツールに対応しました。
・軽微な機能改修を行いました。
◆Version 4.4.8
・軽微な不具合を解消しました。
◆Version 4.4.7
・カラーテーマ「レッド」がダークモードに対応しました。
・会話型表示で過去のメールを読み込めるようになりました。
・軽微な機能改修を行いました。
・新着メール一覧に既読メールを表示できるようになりました。
・新着メール通知に「1時間後にリマインド」ボタンを表示するか設定できるようになりました。
・メール一覧のその他メニューからメールの選択操作ができるようになりました。
・軽微な機能改修を行いました。
◆Version 4.4.12
・軽微な不具合を解消しました。
◆Version 4.4.11
・Android OS 7.0～7.1.2の端末でのサポートを終了しました。
・MMSアカウントで認証情報が確認できるようになりました。
・軽微な機能改修を行いました。
◆Version 4.4.10
・軽微な不具合を解消しました。
◆Version 4.4.9
・通知から新着などを起動できるクイックツールに対応しました。
・軽微な機能改修を行いました。
◆Version 4.4.8
・軽微な不具合を解消しました。
◆Version 4.4.7
・カラーテーマ「レッド」がダークモードに対応しました。
・会話型表示で過去のメールを読み込めるようになりました。
・軽微な機能改修を行いました。