Comparison

mCA Mail vs So Mail

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

So Mail

This app provides AI-powered email security to detect and block phishing, scams, and malicious links. It also unifies all your email accounts, offers task management, and includes productivity features like scheduled sending and email templates.

Highlights
  • AI-powered phishing and scam detection
  • Real-time malicious link scanning
  • Unified inbox for multiple email accounts
  • Email to task conversion
  • Scheduled email sending
  • Email templates
Features
Read full description

Ṣọ Mail: Secure Email & Tasks Your inbox is under attack. Ṣọ Mail is your shield. Every day, hackers send billions of phishing emails. One wrong click can lead to fraud, identity theft, or financial loss. Ṣọ Mail uses AI-powered security to detect threats before you fall for them. Security That Works • Real-time phishing and scam detection • Business Email Compromise (BEC) protection against invoice and wire fraud • Malicious link scanning before you click • QR code scanner that verifies safety before opening links • Dark web breach monitoring with alerts • Sender verification using SPF, DKIM, and DMARC Unified Inbox Connect all your email accounts in one place: Gmail, Outlook/Hotmail, Yahoo Mail, iCloud, and any IMAP email. View everything in a single inbox, color-coded by account. Reply from any address and search across all accounts. Productivity Built In • Convert emails into tasks with one tap • Calendar with Google Calendar and Outlook sync, or use the built-in calendar • Email templates for frequently sent replies, proposals, and follow-ups • Send later and schedule emails at the right time • Snooze emails and bring them back when you’re ready • Labels and smart folders to stay organized Built for Freelancers, Small Businesses, and Nonprofits You may not have an IT team, but you still handle sensitive emails, invoices, and client data. Ṣọ Mail provides enterprise-grade protection without enterprise complexity. Privacy First • Secure credential storage • No data selling • Minimal permissions • Your emails remain private and under your control Download Ṣọ Mail and take back control of your inbox.

Screenshots

mCA Mail4 screens
So Mail4 screens

Verdict

The call

The clearest difference is update cadence: So Mail at weekly against mCA Mail's every 5 weeks. mCA Mail's advantage is iOS requirement (6.0 vs 16.0). On price, rating, review sentiment and ratings volume 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for mCA Mail against 5.0 for So Mail. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

mCA Mail ships an update every 5 weeks, So Mail weekly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
mCA Mail versus So Mail: the parameters behind the verdict, then further details
ParametermCA MailSo Mail
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS6.0 — better16.0
Further details — not scored
Size19 MB91 MB
Age rating4+4+
DeveloperVietnam Posts and Telecommunications GroupSO LABS INC

Customer experience

mCA Mail

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

So Mail

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

mCA Mail

No in-app purchases

None

So Mail

No in-app purchases

Questions

Is mCA Mail free?
mCA Mail is free to download, with no in-app purchases.
Is So Mail free?
So Mail is free to download, with no in-app purchases.
Which has better reviews, mCA Mail or So Mail?
mCA Mail and So Mail are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do mCA Mail or So Mail have ads?
Neither mCA Mail nor So Mail shows ads.
Which is updated more often, mCA Mail or So Mail?
mCA Mail ships an update every 5 weeks, and So Mail weekly. Most recently, mCA Mail was updated on November 1, 2026 and So Mail on October 30, 2026.

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