Comparison

MailPeek vs MBOX Viewer & Reader · Convert

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

Head to head
About

MailPeek

Features
Read full description

Open MSG and EML files on Mac, iPhone and iPad — without Outlook. MailPeek lets you read saved emails with their formatting and attachments. Open a message, save its attached files or export the email as a PDF. Files are processed locally on your device. OPEN MSG AND EML • Open and read Outlook MSG and EML files • View HTML, plain text and RTF message bodies • View and save attachments • Search messages by sender, recipient, subject and filename SAVE AND SHARE • Export emails as PDF • Share messages and attachments using the system share sheet • Open messages in Apple Mail to reply or forward PRIVATE ON YOUR DEVICE • No file uploads for processing • Remote content is blocked by default • You decide whether external images and other remote content can load MORE FORMATS AND DETAILS • Open MBOX mail archives, MHT and MHTML files • Extract files from winmail.dat / TNEF attachments • Inspect full message headers and raw source when needed • Native interface with Dark Mode and Quick Look ONE PURCHASE FOR ALL YOUR DEVICES MailPeek is a one-time purchase for Mac, iPhone and iPad. No subscription.

About

MBOX Viewer & Reader · Convert

Quickly open, read, and search large MBOX email archives on your Apple devices. Convert emails to PDF, CSV, or JSON, and extract contacts. All processing happens offline for maximum privacy.

Highlights
  • Open MBOX and MBX archives
  • Read emails with full formatting
  • Full text search
  • Export attachments
  • Convert to PDF, CSV, JSON
  • Extract contacts to vCard
  • Offline processing
Features
Read full description

MBOX Viewer & Reader is the fastest way to open, read, search and convert MBOX email archives on your iPhone, iPad and Mac. Stuck with a huge .mbox or .mbx file you can't open? MBOX Reader loads it in seconds, even archives with tens of thousands of messages, and shows every message exactly as it was sent. KEY FEATURES • Open .mbox and .mbx archives from Files, Mail, Safari, AirDrop and any other app (MBOX Opener) • Read every message exactly as sent: sender, recipients, date, formatted body and attachments • Lightning fast full text search across the whole archive • Browse, preview and save attachments, or export them all as a ZIP (Compressed MBOX Viewer) • Works fully offline, so nothing is ever uploaded CONVERT AND EXPORT • Export single messages to PDF (MBOX to PDF) • Convert a whole archive to CSV for spreadsheets, or to JSON (MBOX Converter) • Extract every sender and recipient as a vCard contact (Konverter) • Split a large archive into smaller MBOX files • Combine several MBOX files into one archive PRIVATE BY DESIGN Your email never leaves your device. No account, no sign in, no tracking. Everything happens on device, even offline. MBOX Reader turns an archive you couldn't open into something you can read, search, convert and share in seconds.

Screenshots

MailPeek4 screens
MBOX Viewer & Reader · Convert4 screens

Verdict

The call

The clearest difference is price: MBOX Viewer & Reader · Convert at Free against MailPeek's $3.99. MBOX Viewer & Reader · Convert also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (16.0 vs 18.4). MailPeek's advantage is in-app purchases (none vs 9). On 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

MBOX Viewer & Reader · Convert is free to download; MailPeek costs $3.99 up front. MBOX Viewer & Reader · Convert sells 9 in-app purchases, starting at $6.99 per 7 days. MailPeek asks for nothing beyond the download.

UpkeepUpdate frequency

MailPeek ships an update every 3 months, MBOX Viewer & Reader · Convert every 4 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
MailPeek versus MBOX Viewer & Reader · Convert: the parameters behind the verdict, then further details
ParameterMailPeekMBOX Viewer & Reader · Convert
Price$3.99Free — better
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS18.416.0 — better
Further details — not scored
Size4 MB15 MB
Age rating4+4+
DeveloperSneed IT GmbHRUSH TOOLS LLC

In-app purchases

None

MailPeek

No in-app purchases

9 purchases

MBOX Viewer & Reader · Convert

Subscriptions8
  • Pro Weekly3 Days trial$6.997 Days
  • Pro Weekly$9.997 Days
  • Pro Annual$19.991 Year
Show 5 more
  • Pro Annual$29.991 Year
  • Pro Annual$39.991 Year
  • Pro Annual$44.991 Year
  • Pro Annual$49.991 Year
  • Pro Annual$79.991 Year
One-time1
  • Lifetime Access$110.99

Questions

Is MailPeek free?
MailPeek costs $3.99, with no in-app purchases.
Is MBOX Viewer & Reader · Convert free?
MBOX Viewer & Reader · Convert is free to download, with in-app purchases available.
Do MailPeek or MBOX Viewer & Reader · Convert have ads?
Neither MailPeek nor MBOX Viewer & Reader · Convert shows ads.
Which is updated more often, MailPeek or MBOX Viewer & Reader · Convert?
MailPeek ships an update every 3 months, and MBOX Viewer & Reader · Convert every 4 days. Most recently, MailPeek was updated on November 9, 2026 and MBOX Viewer & Reader · Convert on November 10, 2026.

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