PST Viewer & Converter

PST Viewer & Converter

Open OST, Export PDF MBOX EML

6 ratings
13 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 25, 2026
  • August 22, 2026

Features

PST Viewer & Converter screenshot #1 for iPhone
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PST Viewer & Converter screenshot #4 for iPhone
PST Viewer & Converter screenshot #5 for iPhone
PST Viewer & Converter screenshot #6 for iPhone
PST Viewer & Converter screenshot #7 for iPhone
PST Viewer & Converter screenshot #8 for iPhone
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About

This application allows professionals to securely view and convert Outlook PST archives to the MBOX format. It preserves mailbox integrity, metadata, and attachments, offering selective export options for efficient email management and migration across Apple devices.

Open and view PST files with attachments
Accurate PST to MBOX conversion
Preserve folder hierarchy and metadata
Selective export and date filtering
Local, private, and secure processing
Cross-device compatibility (Mac, iPad, iPhone)
Show original description

What's New in PST Viewer & Converter

26.8.0

August 22, 2026

- Included general reliability and compatibility improvements. (PST Viewer & Converter for Outlook)

1

In-App Purchases

$9.99

PST Converter Pro

PST Converter Pro

User reviews

Super simple PST tool for Mac

Really easy‑to‑use PST viewer and converter. Opens my Outlook archive files fast without Outlook installed. Clean interface, straightforward preview and export functions. Everything works locally on my Mac. Exactly what I needed to check old email backups.

Unterordner gehen nicht zu öffnen

Das Programm kann die PST Datei öffnen, wenn dort allerdings Unterordner angelegt wurden, werden diese nur mit einem Pfeil (rechts) angezeigt, können aber nicht aufgeklappt werden. Schade, somit komme ich nur an wenige Mails und das Programm ist für mich nur Schrott.

Response from developer

Vielen Dank für Ihre Rückmeldung und den Hinweis. Wir haben das Problem mit den Unterordnern inzwischen geprüft und behoben. Bei bestimmten PST-Dateien konnte es vorkommen, dass Unterordner zwar angezeigt wurden, sich aber nicht aufklappen ließen. Mit der aktuellen Version ist dieses Problem behoben und die Unterordner sollten sich wieder wie erwartet öffnen lassen. Bitte aktualisieren Sie die App auf die neueste Version und probieren Sie es noch einmal aus. Falls dennoch etwas nicht wie erwartet funktioniert, schreiben Sie uns gerne an admin@yenpi.com – wir kümmern uns darum. Vielen Dank, dass Sie uns mit Ihrem Feedback geholfen haben, die App zu verbessern.

Perfect Standalone PST Viewer!

This app is a lifesaver for opening old Outlook .pst files without having the actual Outlook software installed. It is incredibly fast, clean, and does exactly what it promises.

Perfect PST Viewer!

Reliable, Fast and Simple, Work as I Expected!

Response from developer

Thank you so much!

Converts PST to MBOX but clunky

After conversion, the newly created MBOX file doesn’t appear to be loading in Apple email. However, it turns out that the folder of interest is buried several levels deep, but the emails are there. Also, link to support connects to email but doesn’t seem to get any response from the author.

Response from developer

Thanks for reporting this, and sorry for the inconvenience. We were able to quickly identify the cause and have already released a fix. Please try again with the latest version when you have a chance. In some cases, Apple Mail places the imported folder several levels deep in the mailbox hierarchy, but the emails should be there. We've also replied to your email with additional details. If you run into any further issues, just let us know—we're happy to help.

Developer apps

FAQ

What is PST Viewer & Converter?

PST Viewer & Converter is a professional utility for Mac, iPad, and iPhone that allows you to securely view Outlook PST archives and convert them to the MBOX format. It is designed for tasks like email migration, backup, and eDiscovery.

How does PST Viewer & Converter handle data privacy?

All processing of your email data happens locally on your device. Your sensitive email data never leaves your iPhone, iPad, or Mac, ensuring a private and secure experience.

What devices does PST Viewer & Converter support?

PST Viewer & Converter is available for Mac, iPad, and iPhone, offering a seamless experience across all your Apple devices with a single subscription.

Can I convert only specific emails or folders?

Yes, the app offers selective export control. You can choose to convert only the folders you need and filter emails by date range for more targeted conversions.

Does PST Viewer & Converter have ads?

No, PST Viewer & Converter is ad-free. You can enjoy a clean, focused experience with no ads or interruptions.

How accurate is the PST to MBOX conversion?

The conversion is designed to be accurate, preserving the complete mailbox structure, folder hierarchy, message metadata (To, From, CC, BCC, Date, Subject), and all attachments.

What is the update frequency for PST Viewer & Converter?

The app was last updated on May 12, 2026, indicating active development and support. The latest version is 6.1.0.

What is the age rating for PST Viewer & Converter?

PST Viewer & Converter has an age rating of 4+, making it suitable for a wide range of users. It is designed for professional workflows.