Comparison

MBOX Viewer vs SmartDecrypt PDF ZIP

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

SmartDecrypt PDF ZIP

Features
Read full description

SmartDecrypt helps you unlock password-protected PDFs and archives without hunting through notes, messages, or old emails for the right password. Save a pattern once, such as a bank statement or invoice filename format, and SmartDecrypt can match future files automatically. Passwords with Chinese, Japanese, and Korean characters are now fully supported. On iPhone and iPad, open files from the app or send them through the iOS Share Sheet from Files, Mail, or other apps. Features: - Unlock password-protected PDF files. - Extract ZIP and 7z archives. - Save password patterns for recurring files. - Share files directly to SmartDecrypt from iOS. - Supports UTF-8 passwords including CJK characters. - Process one file at a time for free. - Upgrade once to unlock batch file loading and automatic password cycling. - Keep passwords in the system Keychain. - Interface available in 11 languages. SmartDecrypt is designed for files you already have permission to access. It does not bypass unknown passwords. SmartDecrypt Pro is a one-time universal purchase. Buy once and unlock Pro on both iOS and macOS with the same Apple ID.

Screenshots

MBOX Viewer4 screens
SmartDecrypt PDF ZIP4 screens

Verdict

The call

The clearest difference is update cadence: MBOX Viewer at every 5 days against SmartDecrypt PDF ZIP's every 4 weeks. On price, ads, in-app purchases 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

Both are free to download. MBOX Viewer sells 3 in-app purchases, starting at $3.99 per 7 days and SmartDecrypt PDF ZIP sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MBOX Viewer ships an update every 5 days, SmartDecrypt PDF ZIP every 4 weeks. Both last shipped on October 18, 2026.

Scorecard1 real difference · 9 level
MBOX Viewer versus SmartDecrypt PDF ZIP: the parameters behind the verdict, then further details
ParameterMBOX ViewerSmartDecrypt PDF ZIP
PriceFreeFree
Rating5.0 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 days — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.016.0 — better
Further details — not scored
Size24 MB8 MB
Age rating4+4+
Developer延平 陈KIEN WEI CHOO

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
2 purchases

SmartDecrypt PDF ZIP

One-time2
  • 7-Days TrialFree
  • SmartDecrypt Premium$9.99

Questions

Is MBOX Viewer free?
MBOX Viewer is free to download, with in-app purchases available.
Is SmartDecrypt PDF ZIP free?
SmartDecrypt PDF ZIP is free to download, with in-app purchases available.
Do MBOX Viewer or SmartDecrypt PDF ZIP have ads?
Neither MBOX Viewer nor SmartDecrypt PDF ZIP shows ads.
Which is updated more often, MBOX Viewer or SmartDecrypt PDF ZIP?
MBOX Viewer ships an update every 5 days, and SmartDecrypt PDF ZIP every 4 weeks. Most recently, MBOX Viewer was updated on October 18, 2026 and SmartDecrypt PDF ZIP on October 18, 2026.

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