App for Gmail SMS etc：CosmoSia

Email app for SMS Gmail Outlook Yahoo AOL iCloud Exchange IMAP POP3

ACCESS CO., LTD. · com.access_company.android.nfcommunicator

5.0 out of 5 (1 rating) 5M+ downloads v4.18.4 rev:58b04d2 build:1284 52.6 MB Android 9+ PEGI 3 · Everyone

Download APK 52.6 MB All versions

Signature matches the Google Play version Details

Watch the App for Gmail SMS etc：CosmoSia trailer on YouTube

App for Gmail SMS etc：CosmoSia screenshot 1

App for Gmail SMS etc：CosmoSia screenshot 2

App for Gmail SMS etc：CosmoSia screenshot 3

App for Gmail SMS etc：CosmoSia screenshot 4

App for Gmail SMS etc：CosmoSia screenshot 5

App for Gmail SMS etc：CosmoSia screenshot 6

App for Gmail SMS etc：CosmoSia screenshot 7

At a glance

Latest version: v4.18.4 rev:58b04d2 build:1284 (1284)
Updated: Oct 5, 2026 (3 days ago)
APK size: 52.6 MB
Requires: Android 9+ (API 28)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Communication (app)
Listed since: Jul 15, 2021 (at least)
Permissions: 34 (9 sensitive)
Website: cosmosia.net
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

App for Gmail SMS etc：CosmoSia is an app by ACCESS CO., LTD. in the Communication category, listed since at least July 2021. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

Since version 4.13.7 rev:82d1541 build:1178, the APK grew from 27.2 MB to 52.6 MB and the minimum Android version rose from 5.0 to 9. It asks for 34 permissions, 9 of them sensitive, including camera, record audio and read contacts. It asks for the same permissions as version 4.18.3 rev:2e4fbca build:1279. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v4.18.4 rev:58b04d2 build:1284

🎉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.

Description

From the listing uploaded by “appupdater”.

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.

Version history

7 versions are listed, going back to v4.13.7 rev:82d1541 build:1178. Since v4.16.1 rev:3697ad1 build:1230 it requires Android 9+.

v4.18.4 rev:58b04d2 build:1284 LATEST Oct 5, 2026 52.6 MB TRUSTED v4.18.3 rev:2e4fbca build:1279 Aug 20, 2026 52.6 MB TRUSTED v4.18.2 rev:8871867 build:1276 Aug 12, 2026 52.6 MB TRUSTED v4.18.1 rev:38f9830 build:1275 Aug 29, 2026 52.6 MB TRUSTED v4.16.3 rev:fc2daf9 build:1235 Apr 23, 2026 48.1 MB TRUSTED

All 7 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 5, 2026.
Certificate issued to “ACCESS CO., LTD.” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Oct 5, 2026
Validated against Google Play Oct 5, 2026
Signed byCN=www.access-company.com, OU=Platform Product Development Division 2. Section 2, O="ACCESS CO., LTD.", L=Chiyoda, ST=Tokyo, C=jp
Signing certificate (SHA-1)1F:33:9A:53:75:CB:CB:2C:49:07:63:BA:B3:40:6F:A3:5C:DD:A9:7C
File MD5519dea83ae4335a176460042c8c8dd8f
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (34)

App for Gmail SMS etc：CosmoSia requests 34 permissions, 9 of them sensitive.

Camera Sensitive android.permission.CAMERA
Read contacts Sensitive android.permission.READ_CONTACTS
Read phone numbers Sensitive android.permission.READ_PHONE_NUMBERS
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Read sms Sensitive android.permission.READ_SMS
Receive mms Sensitive android.permission.RECEIVE_MMS
Receive sms Sensitive android.permission.RECEIVE_SMS
Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
Send sms Sensitive android.permission.SEND_SMS
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Advertising ID com.google.android.gms.permission.AD_ID
Attest (custom) com.amazon.privacypass.ATTEST
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Control vibration android.permission.VIBRATE
Foreground service data sync android.permission.FOREGROUND_SERVICE_DATA_SYNC
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.access_company.android.nfcommunicator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Nfcommunicator cemoji (custom) com.access_company.android.nfcommunicator.permission.CEMOJI
Nfcommunicator uemoji (custom) com.access_company.android.nfcommunicator.permission.UEMOJI
Prevent the device from sleeping android.permission.WAKE_LOCK
Read profile android.permission.READ_PROFILE
Request ignore battery optimizations android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE
Write sms android.permission.WRITE_SMS

Required hardware & features

Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Microphone android.hardware.microphone
Landscape screen android.hardware.screen.landscape
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

App for Gmail SMS etc：CosmoSia APK: questions and answers

Is there a version of App for Gmail SMS etc：CosmoSia for older Android phones?

The current version needs Android 9 or later. Version 4.13.7 rev:82d1541 build:1178 is the newest listed build that installs on Android 5.0 and later. Get version 4.13.7 rev:82d1541 build:1178 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is App for Gmail SMS etc：CosmoSia free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the App for Gmail SMS etc：CosmoSia APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 519dea83ae4335a176460042c8c8dd8f.