Comparison

mCA Mail vs PK Protect for Intune

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

mCA Mail

A secure email client for iOS devices that supports multiple mail types and manual server configuration. It offers advanced security features like email signing and encryption, alongside convenient tools for managing attachments and contacts.

Highlights
  • Secure email features with token
  • Support for multiple mail types (Gmail, Outlook, Yahoo)
  • Manual IMAP/SMTP server configuration
  • Threaded conversations for mail
  • Auto-complete contact names
  • Attachment preview and saving
  • Customizable email scribbles
Features
Read full description

mCA Mail is a secure email client app for your iPhone or iPad. The newly redesigned mCA Mail with multiple mail type support and manual config your account with any IMAP/SMTP server. With the app, you can: ● Using secure mail features by token (sign/verify email, encrypt/decrypt email and protect account by token password) ● Switch between up to multi accounts with multi mail type include: Gmail, Outlook Mail, Yahoo! Mail and manual configuration. ● Read and Delete your mail with threaded conversations ● Auto-complete contact names as you type from your contacts or your phone ● Preview, saving and browse attachment files in the iTunes sharing folder ● Customize emails with custom scribbles

About

PK Protect for Intune

Read full description

Specifically designed for existing customers with Microsoft Intune for MDM or MAM. Requires active Microsoft Intune enrollment on your device. PK Protect for iOS helps you get your work done on the go. It’s fast, secure and simple to use so you can be productive from anywhere. If you are unsure if you have PK Protect please contact your company’s IT administrator. With PK Protect for iOS, users can encrypt and decrypt files using: - Smartkeys (including Smartkey creation) - Strong Passphrase - Strong Passphrase (AE2) - X.509 Digital Certificates (decrypt only) - OpenPGP Keys (decrypt only) Automatically access files stored in popular file-sync-and-share solutions including Box, Dropbox, OneDrive and Google Drive. Authenticate with existing Active Directory domain credentials. Perform digital signing and authentication of data with X.509 certificates. Secure files located in other apps can also be passed to PK Protect via the “Open In…” command. That’s it. Click on the install button to get started! PK Protect armors data at its core, eliminating vulnerabilities everywhere data is used, shared or stored. For nearly three decades, PKWARE has provided encryption and compression software to more than 30,000 enterprise customers and over 200 government agencies.

Screenshots

mCA Mail4 screens
PK Protect for Intune4 screens

Verdict

The call

The clearest difference is iOS requirement: mCA Mail at 6.0 against PK Protect for Intune's 13.6. On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

mCA Mail ships an update every 5 weeks, PK Protect for Intune monthly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
mCA Mail versus PK Protect for Intune: the parameters behind the verdict, then further details
ParametermCA MailPK Protect for Intune
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better13.6
Further details — not scored
Size19 MB30 MB
Age rating4+4+
DeveloperVietnam Posts and Telecommunications GroupPKWARE, Inc.

In-app purchases

None

mCA Mail

No in-app purchases

None

PK Protect for Intune

No in-app purchases

Questions

Is mCA Mail free?
mCA Mail is free to download, with no in-app purchases.
Is PK Protect for Intune free?
PK Protect for Intune is free to download, with no in-app purchases.
Do mCA Mail or PK Protect for Intune have ads?
Neither mCA Mail nor PK Protect for Intune shows ads.
Which is updated more often, mCA Mail or PK Protect for Intune?
mCA Mail ships an update every 5 weeks, and PK Protect for Intune monthly. Most recently, mCA Mail was updated on November 1, 2026 and PK Protect for Intune on October 25, 2026.

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