Comparison

Letters vs Mailbox Email Client for Gmail

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

Head to head
About

Letters

Features
Read full description

LETTERS - Mailing made simple. Do you toggle too much between Gmail and WhatsApp? Your current email service is not fast enough for casual conversations with friends. Your messenger or WhatsApp is not functional enough for professional conversations. Letters is the one app you need to communicate with family, friends, and colleagues alike. It's fast, user-friendly, secure, AI-powered, and does much more than your current mailing app. Some of the best things in the world are priceless - so is our app. Access all the finest features that the mail world has to offer for FREE!

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! .

Screenshots

Letters4 screens
Mailbox Email Client for Gmail3 screens

Verdict

The call

The clearest difference is iOS requirement: Letters at 14.3 against Mailbox Email Client for Gmail's 17.6. 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.

Scorecard1 real difference · 8 level
Letters versus Mailbox Email Client for Gmail: the parameters behind the verdict, then further details
ParameterLettersMailbox Email Client for Gmail
PriceFreeFree
Rating—4.5 (31 ratings) — better
Number of ratings—31 — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS14.3 — better17.6
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperVumonic Datalabs OUIndigogo

In-app purchases

None

Letters

No in-app purchases

None

Mailbox Email Client for Gmail

No in-app purchases

Questions

Is Letters free?
Letters is free to download, with no in-app purchases.
Is Mailbox Email Client for Gmail free?
Mailbox Email Client for Gmail is free to download, with no in-app purchases.
Do Letters or Mailbox Email Client for Gmail have ads?
Neither Letters nor Mailbox Email Client for Gmail shows ads.

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