Email Security Suite vs CubMail
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Email Security Suite
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Email Security Suite by Sixscape is a certificate manager for popular email clients for certificate based digital signing and encryption of mails. Email Security Suite delivers on internal and external secure email communications with automation of certificate request, deployment and management with protection of your private key and allows you to achieve and maintain compliance.
CubMail
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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.
Screenshots
Verdict
The clearest difference is ads: Email Security Suite at none against CubMail's shown. Email Security Suite also leads on iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Email Security Suite | CubMail |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 82 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Sixscape Communications | CLYB |
In-app purchases
Email Security Suite
No in-app purchases
CubMail
No in-app purchases





