Comparison

MailPeek MSG Viewer vs MBOX Viewer

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

Head to head
About

MailPeek MSG Viewer

Features
Read full description

Open Outlook MSG, EML, MBOX and winmail.dat / TNEF files on Mac, iPhone and iPad. MailPeek makes Outlook message files easy to open and read without sending anything to the cloud. Open files, read messages, save attachments, and use headers or raw source only when you need more detail. Remote content is blocked by default, so emails cannot silently load external tracking resources unless you allow it. Features: • Open .msg, .eml, .mbox, .mht and .mhtml files • Open winmail.dat / TNEF attachments and extract embedded files • Read HTML, plain text and RTF message bodies • Save attachments quickly • Search by sender, recipient, subject and filename • Native interface with Dark Mode and Quick Look support • Block remote content by default to prevent external tracking • View Email, Headers and Source in one app • Export emails as PDF or share them directly • Export contacts in multiple formats • 100% local processing, nothing sent to the cloud • One-time purchase for Mac, iPhone and iPad – no subscription Built for everyday access to Outlook message files, with extra detail available when you need it.

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/

Screenshots

MailPeek MSG Viewer4 screens
MBOX Viewer4 screens

Verdict

The call

The clearest difference is price: MBOX Viewer at Free against MailPeek MSG Viewer's $3.99. MBOX Viewer also leads on update cadence (every 5 days vs every 4 months). MailPeek MSG Viewer's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement 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

MBOX Viewer is free to download; MailPeek MSG Viewer costs $3.99 up front. MBOX Viewer sells 3 in-app purchases, starting at $3.99 per 7 days. MailPeek MSG Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

MailPeek MSG Viewer ships an update every 4 months, MBOX Viewer every 5 days. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
MailPeek MSG Viewer versus MBOX Viewer: the parameters behind the verdict, then further details
ParameterMailPeek MSG ViewerMBOX Viewer
Price$3.99Free — better
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.017.0
Further details — not scored
Size4 MB22 MB
Age rating4+4+
DeveloperSneed IT GmbH延平 陈

In-app purchases

None

MailPeek MSG Viewer

No 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

Questions

Is MailPeek MSG Viewer free?
MailPeek MSG Viewer costs $3.99, with no in-app purchases.
Is MBOX Viewer free?
MBOX Viewer is free to download, with in-app purchases available.
Do MailPeek MSG Viewer or MBOX Viewer have ads?
Neither MailPeek MSG Viewer nor MBOX Viewer shows ads.
Which is updated more often, MailPeek MSG Viewer or MBOX Viewer?
MailPeek MSG Viewer ships an update every 4 months, and MBOX Viewer every 5 days. Most recently, MailPeek MSG Viewer was updated on September 19, 2026 and MBOX Viewer on September 18, 2026.

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