Comparison

Marco 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

Marco

Consolidate all your email accounts, including Gmail, iCloud, and Outlook, into a single, unified inbox. Enjoy offline access, lightning-fast performance, and customizable views to organize your communications efficiently. This modern app offers a private and streamlined email management experience.

Highlights
  • Unified inbox for all email accounts
  • Offline email access
  • Customizable email views
  • Native iOS and macOS experience
  • Fast performance
  • Privacy-focused
Read full description

All your email accounts, one fast inbox. Marco is a fast, privacy-first email app that unifies Gmail, iCloud, Outlook, Yahoo, and IMAP accounts into one clean inbox. Works offline, syncs instantly, and runs natively on iPhone, iPad, and Mac. Key features: • Unified inbox for all accounts – Gmail, iCloud, Outlook, Yahoo, Exchange, and any IMAP provider in one place. • Native Apple experience – Built for iPhone, iPad, and Mac with full keyboard shortcuts and system integration. • Works offline – Read, search, and compose without a connection. Everything syncs when you're back online. • Privacy-first email – No tracking, no data selling, no ads. Your emails stay yours. • Instant speed – Opens, searches, and sends faster than default mail apps. • Smart email views – Filter by account, label, or sender. Zero inbox clutter. Tired of slow, bloated email clients? Marco is the lightweight, private alternative to Spark, Superhuman, and Apple Mail — with multi-account support, offline access, and no subscription required.

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

Marco4 screens
So Mail4 screens

Verdict

The call

The clearest difference is review sentiment: So Mail at 100% against Marco's 13%. So Mail also leads on rating (5.0 vs 3.7). Marco's advantage is ratings volume (3 vs 1). 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.

ReceptionRating · Positive reviews · Number of ratings

So Mail holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 13% of Marco's written reviews are positive against 100% of So Mail's.

UpkeepUpdate frequency

Marco ships an update every 4 days, So Mail weekly. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Marco versus So Mail: the parameters behind the verdict, then further details
ParameterMarcoSo Mail
PriceFreeFree
Rating3.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews12.5% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.016.0 — better
Further details — not scored
Size105 MB91 MB
Age rating4+4+
DeveloperMarco Technology Inc.SO LABS INC

Customer experience

Marco

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews8 reviews
Positive12.5%
Neutral25.0%
Negative62.5%

So Mail

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

In-app purchases

None

Marco

No in-app purchases

None

So Mail

No in-app purchases

Questions

Is Marco free?
Marco 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, Marco or So Mail?
So Mail is rated higher. Marco averages 3.7 out of 5 from 3 ratings, while So Mail averages 5.0 from 1 ratings.
Do Marco or So Mail have ads?
Neither Marco nor So Mail shows ads.
Which is updated more often, Marco or So Mail?
Marco ships an update every 4 days, and So Mail weekly. Most recently, Marco was updated on October 6, 2026 and So Mail on October 8, 2026.

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