App for Gmail SMS etc：CosmoSia Android
App for Gmail SMS etc：CosmoSia gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
App for Gmail SMS etc：CosmoSia is #11 in Communication Grossing on Google Play in Japan and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
Developer株式会社ACCESS
CategoryCommunication
PriceFree
Released
Installs5M+
Rating★ 4.1 (13k)
Updated
Content ratingEveryone
Rating
4.1 ★
13k ratings
Measured
Best rank now
#11
Communication GrossingMeasured
App for Gmail SMS etc：CosmoSia on Google Play
App details
App ID
com.access_company.android.nfcommunicator
Publisher
株式会社ACCESS
Content rating
Everyone
App for Gmail SMS etc：CosmoSia 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 App for Gmail SMS etc：CosmoSia'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 App for Gmail SMS etc：CosmoSia before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: In-app purchase-led
How App for Gmail SMS etc：CosmoSia makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 10 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | CommunicationGrossing | #11 |
| Japan | CommunicationFree | #72 |
Apps near App for Gmail SMS etc：CosmoSia on the chart
Communication Grossing, around #11.
Ratings
Google Play, worldwide.
Rating
4.1 ★
13k ratings
Measured
Ratings
13k
Measured
Written reviews
6
Measured
About App for Gmail SMS etc：CosmoSia
CosmoSia is the best simple client application for email, SMS, and MMS which can manage your mailbox easily.
CosmoSia is a messaging application for sending and receiving email and SMS with the ability to serve as the default SMS handler.
*CosmoSia must be set as the default SMS application in order to use SMS.
- Just tap! The all-new "Reactions" feature
Get your feelings across without words: Just like in a chat, react to emails with emoji such as "👍", "❤️", and "👏".
Reaches the other person even without the app: When you add a reaction, the recipient automatically receives a clear notification email. No matter which email service they use — Gmail, docomo mail, Yahoo! Mail, and more — your "I saw it" comes through loud and clear.
Stay connected like a conversation: Even in group exchanges, you can see at a glance who reacted and how, so conversations keep flowing and stay fun.
CosmoSia is the best replacement for your email or SMS client app because it supports all major email services, SMS/MMS and any other IMAP4 or POP3.
- Gmail
- Hotmail
- Yahoo mail
- AOL
- iCloud
- Outlook
- GMX
- Exchange
- SMS
- MMS
Easy to start
We provide a set for easy setting especially for Gmail, Outlook, Hotmail and SMS. You can start using it immediately.
Easy to use
CosmoSia love simplicity and are committed to make your email easy to read.
We do not provide the complicated functions that other mailers do.
Simple Client
CosmoSia is a simple mail client application that does not use an intermediate server.
We declare that it is structurally impossible for us to see any user's ID, account info, password or email body.
You can use CosmoSia app without concern that your information is being seen in the mailer service.
Animation Emoji
With CosmoSia, you can insert Emoji icons in emails.
Decorate your email and enjoy it!
We LOVE hearing your feedback and are so thankful for everyone supporting CosmoSia.
If you need any help, please contact us from [email protected] anytime.
CosmoSia is a messaging application for sending and receiving email and SMS with the ability to serve as the default SMS handler.
*CosmoSia must be set as the default SMS application in order to use SMS.
- Just tap! The all-new "Reactions" feature
Get your feelings across without words: Just like in a chat, react to emails with emoji such as "👍", "❤️", and "👏".
Reaches the other person even without the app: When you add a reaction, the recipient automatically receives a clear notification email. No matter which email service they use — Gmail, docomo mail, Yahoo! Mail, and more — your "I saw it" comes through loud and clear.
Stay connected like a conversation: Even in group exchanges, you can see at a glance who reacted and how, so conversations keep flowing and stay fun.
CosmoSia is the best replacement for your email or SMS client app because it supports all major email services, SMS/MMS and any other IMAP4 or POP3.
- Gmail
- Hotmail
- Yahoo mail
- AOL
- iCloud
- Outlook
- GMX
- Exchange
- SMS
- MMS
Easy to start
We provide a set for easy setting especially for Gmail, Outlook, Hotmail and SMS. You can start using it immediately.
Easy to use
CosmoSia love simplicity and are committed to make your email easy to read.
We do not provide the complicated functions that other mailers do.
Simple Client
CosmoSia is a simple mail client application that does not use an intermediate server.
We declare that it is structurally impossible for us to see any user's ID, account info, password or email body.
You can use CosmoSia app without concern that your information is being seen in the mailer service.
Animation Emoji
With CosmoSia, you can insert Emoji icons in emails.
Decorate your email and enjoy it!
We LOVE hearing your feedback and are so thankful for everyone supporting CosmoSia.
If you need any help, please contact us from [email protected] anytime.
What's new in 4.18.3 rev:2e4fbca build:1279
🎉Introducing "Reactions"! Make replying to emails easier and more fun. Send a quick "Got it," "Confirmed," or "Thanks" to the other person with a single tap — no need to write out a message. Backed by our proprietary patented technology (patent granted), it lets you expand your circle of communication safely and securely.
August 20 2026 | v4.18.3
- Fixed some bugs.
April 23 2024 | v4.15.0
- Now supports Android 14.
- Added 10 new rich templates.
August 20 2026 | v4.18.3
- Fixed some bugs.
April 23 2024 | v4.15.0
- Now supports Android 14.
- Added 10 new rich templates.