CubMail
CLYB Productivity iPhoneiPadiPod touchMac
CubMail is a free Productivity app for iPhone and iPad by CLYB. Requires iOS 15.0. Updated October 9, 2026.
- Price
- Free
- on the App Store
- Size
- 31 MB
- Age 4+
- Updated
- Oct 9
- 2026 · v1.2.25
Screenshots
About CubMail
Your email, your servers, your choice. CubMail is a modern email client that connects directly to your providers’ IMAP and SMTP servers. Bring multiple inboxes together, open every folder and stay in control of your data. EVERYDAY EMAIL, DONE WELL • Multiple accounts with instant switching • Inbox, drafts, sent, archive, junk and trash folders • Reply, forward, star, archive, move and delete • Sanitized HTML messages, inline images and attachments • Full composer with To, Cc, Photos and Files • All, Unread and Starred filters • IMAP folder creation and filters covering the entire folder • Compressed profile photo and HTML signature with resizable images • Scheduled automatic replies with server confirmation • Read and delivery receipt requests when supported CONTACTS THAT STAY ORGANIZED Each mailbox has its own CubMail address book. Contacts added to one account never appear in another. You can also import only the contacts you select from your device. PRACTICAL PRIVACY Passwords remain in the device’s secure storage. Message content and attachments travel directly between your device and your IMAP/SMTP servers. CubMail displays Google AdMob ads after gathering privacy choices and offers a one-time purchase to remove them. Your email content, contacts, and IMAP/SMTP credentials are never sent to AdMob. NOTIFICATIONS WHILE THE APP IS CLOSED When enabled, our private encrypted relay reads only the headers required to detect new mail. It never downloads message bodies or attachments. Removing an account also removes its local secret, contacts, and local and remote notifications. MORE INCLUDED Biometric lock, light and dark themes, widget, shortcuts and nine languages. GOOD TO KNOW Your provider must allow password or app-password access. Google and Microsoft OAuth are not available yet.
What’s new
Version 1.2.25 · Updated October 9, 2026
Fixed memory accumulation during mail synchronization. Message, image and attachment caches are now bounded, and content is released when the reader closes. Improved stability during extended sessions.
App privacy
The developer, CLYB, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID, User ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
- Contact Info: Physical Address, Email Address, Name, Phone Number
- Contacts: Contacts
- User Content: Emails or Text Messages, Photos or Videos, Other User Content
Used for: Third-Party Advertising, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Diagnostics: Crash Data
Used for: Third-Party Advertising, Analytics
Alternatives to CubMail
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