Comparison

Mailbox Email Client for Gmail 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

Mailbox Email Client for Gmail

This app streamlines Gmail management with AI-powered summaries, multi-account support, and smart scheduling. Its intuitive design and fast swipe actions help users focus on important messages and boost productivity.

Highlights
  • AI email summarization
  • Multi-account management
  • Smart email scheduling
  • Lightning-fast swipe actions
  • Threaded conversations
  • Modern, clean interface
Features
Read full description

Mailbox for Gmail - Smart Email Client Experience Gmail like never before with AI-powered simplification and beautiful design. Mailbox for Gmail transforms your email experience with intelligent features that help you focus on what matters. Manage multiple Gmail accounts, simplify complex emails with AI, and stay organized with powerful productivity tools. KEY FEATURES AI Email Simplification • Get instant summaries of long emails • Extract key points automatically • Powered by OpenAI for accurate understanding • Save time reading newsletters and reports Multi-Account Management • Seamlessly switch between multiple Gmail accounts • Each account keeps separate preferences • Instant switching - no re-authentication needed • Secure OAuth2 authentication with Google Smart Email Scheduling • Snooze emails to reappear at the perfect time • Schedule messages for later review • Keep your inbox focused on what's urgent Productivity Features • Lightning-fast swipe actions • Star important messages • Archive, delete, or snooze with a swipe • Thread conversations for context Beautiful Design • Modern, clean interface built with SwiftUI • Smooth animations and intuitive navigation • Customizable text sizes for comfortable reading • Dark mode support (coming soon) Privacy & Security • Secure OAuth2 authentication • Your credentials never stored on servers • Data encrypted with iOS Keychain • No email content shared with third parties Built for iOS • Native iOS 15+ performance • Optimized for all iPhone sizes • Offline access to cached emails • Fast sync with Gmail servers PERFECT FOR • Professionals managing multiple email accounts • Anyone overwhelmed by long email threads • Users who want AI-powered productivity • People seeking a modern Gmail experience TRY DEMO MODE Not ready to connect your account? Try our built-in demo mode with realistic fake emails to explore all features risk-free! REQUIREMENTS • iOS 15.0 or later • Gmail account(s) • OpenAI API key (for AI features - optional) GET STARTED IN SECONDS 1. Sign in with your Gmail account 2. Customize your preferences 3. Start managing emails smarter Download Mailbox for Gmail today and experience email productivity reimagined! .

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

Mailbox Email Client for Gmail3 screens
GCM Mail4 screens

Verdict

The call

The clearest difference is update cadence: GCM Mail at every 5 days against Mailbox Email Client for Gmail's every 5 weeks. GCM Mail also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price, 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

Mailbox Email Client for Gmail ships an update every 5 weeks, GCM Mail every 5 days. The most recent releases landed on September 18, 2026 and May 19, 2026 respectively.

Scorecard3 real differences · 6 level
Mailbox Email Client for Gmail versus GCM Mail: the parameters behind the verdict, then further details
ParameterMailbox Email Client for GmailGCM Mail
PriceFreeFree
Rating4.6 (14 ratings) — better—
Number of ratings14 — better—
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size9 MB31 MB
Age rating4+4+
DeveloperIndigogoGCM TECH SOLUTIONS

In-app purchases

None

Mailbox Email Client for Gmail

No in-app purchases

None

GCM Mail

No in-app purchases

Questions

Is Mailbox Email Client for Gmail free?
Mailbox Email Client for Gmail 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 Mailbox Email Client for Gmail or GCM Mail have ads?
Neither Mailbox Email Client for Gmail nor GCM Mail shows ads.
Which is updated more often, Mailbox Email Client for Gmail or GCM Mail?
Mailbox Email Client for Gmail ships an update every 5 weeks, and GCM Mail every 5 days. Most recently, Mailbox Email Client for Gmail was updated on September 18, 2026 and GCM Mail on May 19, 2026.

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