Comparison

OptMsg vs GCM Mail

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

Head to head
About

OptMsg

This email app offers unparalleled privacy and security with 100% inbox control. Only approved senders can reach you, and all messages are fully encrypted. Enjoy a distraction-free, password-free experience with no ads or data tracking.

Highlights
  • 100% inbox control with approved senders
  • Password-free authentication via Passkeys
  • End-to-end encryption for secure messaging
  • No ads, no tracking, no data mining
  • Auto-delete trash after 30 days
  • Community recommendations for new senders
Features
Read full description

OptMsg: Private, Secure, Simple Email Everyone else decides what lands in your inbox. A retailer you bought from once. A list you never joined. A message pretending to be your bank. OptMsg puts that decision back with you. OptMsg is patent-pending opt-in email: mail from a sender you have not approved goes straight to Trash, and Trash empties itself after 30 days. You decide who gets in, and you can change your mind at any time. You Decide Who Gets In • Mail from senders you haven't approved goes to Trash, not your Inbox. • Easily grant or revoke access to your inbox. • Auto-delete trash after 30 days—no clutter, no wasted space. Private Always • Fully encrypted for secure messaging between OptMsg users. • Mail you send to an address outside OptMsg may still be read or monetized by that provider. • OptMsg does not scan your emails to sell ads. • No ads. We don't collect your personal data to sell to advertisers. Security First • No Passwords – protect your inbox and your other online accounts • Uses Passkeys for seamless, password-free authentication • Your OptMsg account has no password, so a password stolen from another site can't open your inbox. Simple by Design • Clean, intuitive design for effortless email management. • No complicated settings—just straightforward, secure communication. • Reliable performance to keep your inbox running smoothly. Other Key Features • A new clean, @optmsg.com email address others can trust • Send and receive emails and attachments with ease • Keep your inbox tidy and clean with tags and simple swipe-gestures • Receive important notifications • Manage your contacts • Use Community Recommendations to identify new senders of interest • Make OptMsg your default email app We're constantly improving OptMsg — new features, and steady work on email security. Create Your Account. Your Inbox. Your Rules.

About

GCM Mail

Features
Read full description

GCM Mail – One Inbox. All Your Accounts. GCM Mail brings all your emails together in one powerful, secure, and beautifully designed app. Connect your Gmail, Outlook, Hotmail, Office 365, Exchange, and other IMAP or POP3 accounts — and manage everything seamlessly in a single inbox.

Screenshots

OptMsg4 screens
GCM Mail4 screens

Verdict

The call

The clearest difference is update cadence: GCM Mail at every 5 days against OptMsg's monthly. GCM Mail also leads on iOS requirement (13.0 vs 15.0). On price, ads, 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

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

OptMsg ships an update monthly, GCM Mail every 5 days. The most recent releases landed on October 4, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 8 level
OptMsg versus GCM Mail: the parameters behind the verdict, then further details
ParameterOptMsgGCM Mail
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyMonthlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size61 MB31 MB
Age rating4+4+
DeveloperOptMsg, LLCGCM TECH SOLUTIONS

In-app purchases

None

OptMsg

No in-app purchases

None

GCM Mail

No in-app purchases

Questions

Is OptMsg free?
OptMsg is free to download, with no in-app purchases.
Is GCM Mail free?
GCM Mail is free to download, with no in-app purchases.
Do OptMsg or GCM Mail have ads?
Neither OptMsg nor GCM Mail shows ads.
Which is updated more often, OptMsg or GCM Mail?
OptMsg ships an update monthly, and GCM Mail every 5 days. Most recently, OptMsg was updated on October 4, 2026 and GCM Mail on October 5, 2026.

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