Comparison

Mailbox Email Client for Gmail vs Outbox

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

Outbox

Effortlessly unsubscribe from unwanted emails and delete thousands of junk messages with a few taps. This app helps you reclaim storage space and focus on important communications by decluttering your inbox.

Highlights
  • Swipe to unsubscribe
  • Bulk unsubscribe
  • Delete junk emails
  • Reclaim storage space
  • Subscription sorting
  • Dark mode
Read full description

Outbox: Declutter Your Inbox in Seconds Tired of missing important emails buried under countless newsletters and promotions? Outbox makes unsubscribing from unwanted emails effortless, freeing up your inbox so you can focus on what truly matters. Spend less time scrolling and more time reading the messages that count. WHY OUTBOX? . Addictively Simple: Swipe left to unsubscribe or swipe right to keep. No more searching for hidden “unsubscribe” links. . Instant Cleanups: Delete thousands of junk emails with just a few taps. . One-Click Multi-Unsubscribe: Tired of unsubscribing sender by sender? Outbox allows you to remove multiple senders at once. . Reclaim Storage Space: Track exactly how much storage your emails occupy and free it up instantly. . Peace of Mind: Focus on urgent emails instead of drowning in promotional clutter. . Built for Gmail: Connect securely with your Gmail account for a streamlined, instant setup. . Dark Mode: Clean your inbox anytime with a theme that’s easy on the eyes. FEATURES THAT SAVE YOU TIME . Bulk Unsubscribe Mode: Unsubscribe from multiple senders with a single tap. . Subscription Sorting: Sort by frequency, size, or how often you open emails - so you can tackle the worst offenders first. . One-Tap Cleanup: Choose to unsubscribe, delete, or mark messages as read - all in one place. . Undo Swipes: Accidentally swipe the wrong way? No problem - easily undo for 24 hours. PRIVACY- FOCUSED Your data and email content are safe with us. Outbox never stores the content of your emails or sells your data. We only use minimal inbox information - like sender addresses and unsubscribe links—to provide essential details and ensure a secure, seamless experience. BETTER THAN COMPETITORS Other apps like Trimbox and Unroll.me can be clunky and complex. Outbox keeps it simple, with a clean interface in both light and dark modes - no extra gimmicks, no clutter, just results. Achieving inbox zero has never been so straightforward. TAKE BACK CONTROL OF YOUR INBOX Stop letting unwanted emails bury the ones that matter. Thousands have already rescued their inboxes from subscription overload - be next. Download Outbox now and experience true email freedom! By using Outbox, you agree to our terms of service, as outlined by standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Mailbox Email Client for Gmail3 screens
Outbox4 screens

Verdict

The call

The clearest difference is in-app purchases: Mailbox Email Client for Gmail at none against Outbox's 2. Outbox's advantage is rating (4.9 vs 4.5) and update cadence (fortnightly vs every 5 weeks). On price, ratings volume, ads 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. Outbox sells 2 in-app purchases, starting at $12.99 per month. Mailbox Email Client for Gmail asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Outbox holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 31 and 11 respectively.

UpkeepUpdate frequency

Mailbox Email Client for Gmail ships an update every 5 weeks, Outbox fortnightly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
Mailbox Email Client for Gmail versus Outbox: the parameters behind the verdict, then further details
ParameterMailbox Email Client for GmailOutbox
PriceFreeFree
Rating4.5 (31 ratings)4.9 (11 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings31 — better11
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.617.6
Further details — not scored
Size9 MB42 MB
Age rating4+4+
DeveloperIndigogoOutbox LLC

Customer experience

Mailbox Email Client for Gmail

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%

Outbox

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Mailbox Email Client for Gmail

No in-app purchases

2 purchases

Outbox

Subscriptions2
  • Monthly $12.99$12.991 Month
  • Outbox - Gmail Inbox Cleaner$39.991 Year

Questions

Is Mailbox Email Client for Gmail free?
Mailbox Email Client for Gmail is free to download, with no in-app purchases.
Is Outbox free?
Outbox is free to download, with in-app purchases available.
Which has better reviews, Mailbox Email Client for Gmail or Outbox?
Outbox is rated higher. Mailbox Email Client for Gmail averages 4.5 out of 5 from 31 ratings, while Outbox averages 4.9 from 11 ratings.
Do Mailbox Email Client for Gmail or Outbox have ads?
Neither Mailbox Email Client for Gmail nor Outbox shows ads.
Which is updated more often, Mailbox Email Client for Gmail or Outbox?
Mailbox Email Client for Gmail ships an update every 5 weeks, and Outbox fortnightly. Most recently, Mailbox Email Client for Gmail was updated on October 24, 2026 and Outbox on October 24, 2026.

Other comparisons