Works really well
I imported an mbox file that was 9 GB in size with no trouble. Just make sure you select the inner mbox folder with the email rather than the outer folder that contains the inner folder. You can view email without a purchase. To print email and view attachments you do need to make an in-app purchase, but it is well worth the reasonable price.
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Perfect for Google Takeout!
It is incredibly fast, lightweight, and handles massive archive files
Reliable and Simple！
Perfect，it's what i need！
Awesome app
Such a great and practical app! I highly recommend it.
Reliable & Simple!
Works very well for large MBOX files(15GB)
Super easy and handy！
It is highly convenient and easy to use.
If you have old MBOX files, you need this app！
As a journalist, I get email dumps in MBOX format often. read them on my iPad during flights — no laptop needed. Search is powerful, and I can AirDrop key emails instantly. good tool.
Enterprise-ready
My team uses this to review legacy email archives during audits. Handles thousands of emails without lag. Rare to find this quality on the App Store
Perfect for Google Takeout users!
Does exactly what it says — no fuss, no crashes. Opens huge MBOX files in seconds. A must-have.
Clean & Fast!
Simple, powerful, and does exactly what it says. It’s the most stable MBOX viewer I’ve used on macOS. If you need to view or export MBOX files, don't waste time with other apps—this is the one
No email client needed – works perfectly
Opens Thunderbird and Apple Mail archives with ease. Search is lightning fast.