Comparison

MBOX Viewer vs Mailbox

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

Head to head
About

MBOX Viewer

Easily open, convert, and export MBOX email archives to various formats like PDF, EML, HTML, or TXT. This app offers fast performance for large files, batch conversion, and robust search capabilities. It prioritizes user privacy with 100% offline functionality and no account requirement.

Highlights
  • MBOX to PDF, EML, HTML, TXT conversion
  • Batch email export
  • Fast performance for large archives
  • Search and filter emails
  • View and extract attachments
  • Cross-device access with one subscription
  • 100% offline functionality
Features
Read full description

The easiest way to convert, open, and export MBOX archives on iPhone, iPad, and Mac. ONE SUBSCRIPTION. ALL YOUR DEVICES. Access all premium features across your Apple devices with a single subscription. No ads, no hidden fees—just full support for iPhone, iPad, and Mac. CONVERT & ACCESS YOUR EMAIL ARCHIVES Easily convert MBOX files to PDF, EML, HTML, or TXT for sharing, backup, or documentation. Open and browse your email archives with a fast, reliable viewer designed for large files. Whether it’s a Gmail Takeout, Thunderbird backup, or legacy archive, your emails are ready in seconds. CORE FEATURES • MBOX Conversion: Export emails to PDF, EML, HTML, or TXT • Batch Export: Convert multiple emails quickly and efficiently • Fast Performance: Handles large, multi-gigabyte archives smoothly • Search & Filter: Find emails by sender, subject, date, or keyword • Attachment Support: View and extract attachments easily • Cross-Device Access: One subscription for iPhone, iPad, and Mac PRIVACY FIRST Your data stays on your device—always. • 100% Offline: No uploads, no cloud processing • No Account Required: Start instantly • Zero Tracking: Your data is never collected PERFECT FOR • Gmail Takeout and email backups • Converting emails for sharing or records • Legal, compliance, or offline review • Accessing old email archives Compatibility: Supports standard MBOX (mboxrd) formats Need help or have feedback? Contact us at admin@yenpi.com Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Mailbox

Features
Read full description

Downloaded your email archive as an .mbox file and can't open it on your iPhone? Mailbox opens MBOX mailboxes — like a Google Takeout mail export — so you can read the messages and save their attachments, right on your iPhone. Choose the .mbox file in the Files app. Mailbox lists every message with its subject, sender, date and attachment count; tap one to read it. • EVERY MESSAGE IN A LIST — subject, sender, date and a paperclip count for messages with attachments. • READ THE MESSAGE — From, To, Date and Subject plus the message text. HTML emails are shown as clean readable text, and you can select and copy text. • ATTACHMENTS — see each attachment's name, type and size, and save it to Files with one tap. • REAL-WORLD MAIL FORMATS — multipart messages, nested parts, base64 and quoted-printable encoding, encoded subject lines and mboxrd-escaped lines are decoded. • SINGLE EMAILS TOO — open an .eml file to read one message on its own. Honest scope: Mailbox is a read-only viewer. There is no search, sorting or reply, and HTML emails are shown as text without images or formatting. Every message in the file is listed, and large archives of several GB open too: the mailbox is read from storage one message at a time instead of being loaded whole. Text in older encodings such as ISO-2022-JP, Shift_JIS or ISO-8859-1 is decoded using the character set the message declares. Your mailbox is read on your iPhone. Nothing is uploaded and no account is needed. Reading messages is free and unlimited. Saving attachments includes 3 free exports; a one-time $4.99 purchase unlocks unlimited attachment exports. No subscription, no ads. Questions: overlapmarr@gmail.com

Screenshots

MBOX Viewer4 screens
Mailbox3 screens

Verdict

The call

The clearest difference is device support: MBOX Viewer at 3 against Mailbox's 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. MBOX Viewer sells 3 in-app purchases, starting at $3.99 per 7 days and Mailbox sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on October 24, 2026.

Scorecard1 real difference · 9 level
MBOX Viewer versus Mailbox: the parameters behind the verdict, then further details
ParameterMBOX ViewerMailbox
PriceFreeFree
Rating5.0 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.016.0 — better
Further details — not scored
Size24 MB1 MB
Age rating4+4+
Developer延平 陈Jhomar Maravillas

In-app purchases

3 purchases

MBOX Viewer

Subscriptions2
  • Premium Weekly$3.997 Days
  • Premium Yearly$9.991 Year
One-time1
  • MBOX Viewer & Converter Premium$19.99
1 purchases

Mailbox

One-time1
  • Unlock Unlimited$4.99

Questions

Is MBOX Viewer free?
MBOX Viewer is free to download, with in-app purchases available.
Is Mailbox free?
Mailbox is free to download, with in-app purchases available.
Do MBOX Viewer or Mailbox have ads?
Neither MBOX Viewer nor Mailbox shows ads.
Which is updated more often, MBOX Viewer or Mailbox?
MBOX Viewer ships an update every 5 days, and Mailbox every 5 days. Most recently, MBOX Viewer was updated on October 24, 2026 and Mailbox on October 24, 2026.

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