Direct mail connection
Message bodies and attachments travel between your device and your chosen mail servers. CubMail does not store them.
Private email for iPhone and Android
All your inboxes. One calm, clear app.
CubMail connects directly to your providers’ IMAP and SMTP servers. Read, write, search and organize multiple accounts, with privacy choices and an optional one-time ad-free purchase.
iOS 15+Android 7+9 languages
Built for multiple accounts
Independent contacts, signatures, folders and notifications for every mailbox, with a combined unread badge.
Optional encrypted sync
Keep CubMail contacts, identity, profile photo and signatures available on your other devices. Sync is off by default.
Local-first and resilient
If the CubMail service is unavailable, mail, contacts and signatures continue to work locally and synchronize later.
Privacy by design
A simple 30-day limit
Inactive device authorizations and orphaned synced profiles are automatically deleted after 30 days. Global deletion remains available at any time.
Apple · Android · macOS
Designed for what comes next
The shared encrypted profile prepares continuity across phones and a future dedicated macOS version without copying your mailbox content.