Comparison

MailPeek MSG Viewer vs TagSpaces

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

TagSpaces

Features
Read full description

TagSpaces is a private, offline file organizer and note-taking app. Browse, tag, and find your documents, photos, notes, and PDFs — all kept on your device or in your own iCloud Drive. No account, no sign-up, no cloud lock-in, and no tracking. Most apps push your files into someone else's cloud. TagSpaces does the opposite: your data stays yours, in plain files and folders you fully control, readable with or without the app. Organize with tags • Add tags directly into filenames or store them in sidecar files • Group and color your tags for fast visual sorting • Works across all your folders — no proprietary database Find anything, fast • Search by name or tags with fuzzy matching • Filter and narrow down large folders in seconds Notes & to-dos • Create notes in plain text, Markdown, or HTML • Keep simple task lists with the built-in editor View your media • Open images, PDFs, audio, and video right in the app • Preview and manage documents without extra tools Private and offline by design • 100% offline — no internet connection required • No ads, no analytics, no accounts • Your files live on your device and in your iCloud Drive, and integrate with the iOS Files app Open source you can trust The TagSpaces core is open source (AGPL), so anyone can verify how it handles your data. TagSpaces Pro Unlock advanced features with an in-app purchase, including downloading and clipping web pages and files from a URL, and more power tools for your workflow. Part of a cross-platform suite TagSpaces is also available for Mac, Windows, Linux, and the web — organize the same folders everywhere, your way. Take back control of your files. Download TagSpaces and turn your phone into a private, offline home for everything that matters.

Screenshots

MailPeek MSG Viewer4 screens
TagSpaces4 screens

Verdict

The call

The clearest difference is price: TagSpaces at Free against MailPeek MSG Viewer's $3.99. TagSpaces also leads on update cadence (every 3 weeks vs every 4 months) and iOS requirement (15.0 vs 17.0). MailPeek MSG Viewer's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

TagSpaces is free to download; MailPeek MSG Viewer costs $3.99 up front. TagSpaces sells 1 one-off in-app purchase. MailPeek MSG Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

MailPeek MSG Viewer ships an update every 4 months, TagSpaces every 3 weeks. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

Scorecard4 real differences Ā· 2 level
MailPeek MSG Viewer versus TagSpaces: the parameters behind the verdict, then further details
ParameterMailPeek MSG ViewerTagSpaces
Price$3.99Free — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size4 MB219 MB
Age rating4+4+
DeveloperSneed IT GmbHTagSpaces GmbH

In-app purchases

None

MailPeek MSG Viewer

No in-app purchases

1 purchases

TagSpaces

One-time1
  • TagSpaces Pro$29.99

Questions

Is MailPeek MSG Viewer free?
MailPeek MSG Viewer costs $3.99, with no in-app purchases.
Is TagSpaces free?
TagSpaces is free to download, with in-app purchases available.
Do MailPeek MSG Viewer or TagSpaces have ads?
Neither MailPeek MSG Viewer nor TagSpaces shows ads.
Which is updated more often, MailPeek MSG Viewer or TagSpaces?
MailPeek MSG Viewer ships an update every 4 months, and TagSpaces every 3 weeks. Most recently, MailPeek MSG Viewer was updated on September 19, 2026 and TagSpaces on September 9, 2026.

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