Q-Courier
QUANTUMRONICS (PRIVATE) LIMITED Communication
Secure business email, calendar, contacts and tasks with S/MIME encryption.
- Downloads
- 7+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Oct 26
- 2026 · v1.0.3
Screenshots
About Q-Courier
Q-Courier brings your Q-Courier business mailbox to your phone — email, calendar, contacts and tasks in one secure app that works just like the Q-Courier webmail.
SECURE EMAIL
• Send digitally signed and encrypted mail with S/MIME
• Read encrypted mail right on your phone once your certificate is installed
• Clear lock and signed badges show which messages are protected
• Install your certificate directly from the app
FAST, SIMPLE INBOX
• Inbox, Starred, Drafts, Sent, Trash and Spam
• Starred shows your starred mail from every folder in one place
• Mark read or unread, star, move and delete instantly
• Colour tags to organise your mail
• Search your mailbox
• Full Cc and Bcc details, even on mails with many recipients
• Unread counts for your folders
AI ASSISTANT
• Summarize long emails in one tap
• AI Draft helps you write new emails
• Draft Reply with AI: choose what you want to say and the tone, and get a ready-to-edit reply
CALENDAR AND TASKS
• Day, week and month views of your calendars
• Create and edit events
• Tasks with status (needs action, in progress, completed), due dates and progress
• Search tasks and view completed ones
CONTACTS
• Your Q-Courier address book on the go
• Add and edit contacts and pick recipients quickly when writing mail
YOUR SETTINGS, EVERYWHERE
• Signature, language, time zone and other preferences match your webmail
• Light and dark themes
PRIVATE BY DESIGN
• All connections are encrypted and verified
• No ads and no tracking
• Your mail stays between you and your Q-Courier server
Q-Courier requires a Q-Courier account provided by your organization. Contact your administrator if you need access.
SECURE EMAIL
• Send digitally signed and encrypted mail with S/MIME
• Read encrypted mail right on your phone once your certificate is installed
• Clear lock and signed badges show which messages are protected
• Install your certificate directly from the app
FAST, SIMPLE INBOX
• Inbox, Starred, Drafts, Sent, Trash and Spam
• Starred shows your starred mail from every folder in one place
• Mark read or unread, star, move and delete instantly
• Colour tags to organise your mail
• Search your mailbox
• Full Cc and Bcc details, even on mails with many recipients
• Unread counts for your folders
AI ASSISTANT
• Summarize long emails in one tap
• AI Draft helps you write new emails
• Draft Reply with AI: choose what you want to say and the tone, and get a ready-to-edit reply
CALENDAR AND TASKS
• Day, week and month views of your calendars
• Create and edit events
• Tasks with status (needs action, in progress, completed), due dates and progress
• Search tasks and view completed ones
CONTACTS
• Your Q-Courier address book on the go
• Add and edit contacts and pick recipients quickly when writing mail
YOUR SETTINGS, EVERYWHERE
• Signature, language, time zone and other preferences match your webmail
• Light and dark themes
PRIVATE BY DESIGN
• All connections are encrypted and verified
• No ads and no tracking
• Your mail stays between you and your Q-Courier server
Q-Courier requires a Q-Courier account provided by your organization. Contact your administrator if you need access.
What’s new
Version 1.0.3 · Updated October 26, 2026
• Two-factor authentication: setup now works correctly and backup codes are created when you turn it on • New "Backup codes" option in Settings • Recipient suggestions show only people from your organisation • Better support for the newest Android phones • Stability and security improvements
Alternatives to Q-Courier
Looking for apps like Q-Courier? Here are 6 similar Android apps on Google Play. All of them are free to download.
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Contacts - Phone Call Launcher
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Coachlink
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BrundoApp
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NethivaripalliTrustRamalayam
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| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| Q-Courier | – | Free | 5+ | Oct 26, 2026 | |
| Contacts - Phone Call Launcher | – | Free | 5,000+ | Oct 22, 2026 | Compare |
| Coachlink | – | Free | 1+ | Oct 29, 2026 | Compare |
| BrundoApp | – | Free | 10+ | Dec 5, 2025 | Compare |
| ETalken AAC | – | Free | 100+ | Oct 30, 2026 | Compare |
| NethivaripalliTrustRamalayam | – | Free | 10+ | Oct 13, 2023 | Compare |
| TempMailX - Temp Email | – | Free | 5,000+ | Jul 8, 2024 | Compare |
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