Comparison

Pst Mail vs Onshape 3D CAD

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

Head to head
About

Pst Mail

Access your Outlook emails offline by transferring PST files to your device. Browse, search, and manage your messages without an internet connection. View attachments, reply to emails, and even access contacts stored within the PST file.

Highlights
  • Open multiple PST files
  • Transfer PST files via iTunes or Dropbox
  • Search messages by sender, subject, text, and date
  • View and open email attachments
  • Reply and forward messages
  • Display PST file contacts
  • Password protection
Features
Read full description

Transfer Outlook pst files to your device, and have access to your messages. Save money on your data plan, as no connection to the server is necessary to read stored emails. Some of the features in Pst Mail are: * Open multiple pst files. * Get pst files quickly using iTunes. * Get pst files from Dropbox. * Get pst files from other apps that support “Open In”. * Search messages by sender, recipient, subject, attachment filename or full message text. You may specify a date range to narrow results. Subfolders may be included in the search. * Select sort criteria for the message list. * Use a different sort criterion for the special folder that contains sent items. * Filter messages by from/to/subject or all of them combined. * Open attachments externally with other apps in you device, or if the file format is supported, using Pst Mail preview option. * Reply and forward messages. * Link recipient names to the address book * Compatible with both old and new versions of the pst file (i.e., ANSI and Unicode). * Print emails wirelessly (iOS 4.2 or later). * Customize timezone for date and time display. * Display contacts in the pst file. * Option to protect Pst Mail with a password. * Option to exclude pst files from the iTunes backup.

About

Onshape 3D CAD

This professional CAD platform enables real-time collaboration on product design from any device. It offers parametric modeling tools, secure cloud storage, and version control, streamlining the design process for teams and individuals. Supports students and educators with free access for non-commercial projects.

Highlights
  • Parametric modeling tools
  • Real-time team collaboration
  • Cloud-based data management
  • Cross-device access
  • Version control and history
  • Commenting and feedback tools
Read full description

Onshape is a full mechanical CAD platform designed for professional users and extended teams. Create, edit, collaborate, and comment in real time with others from any computer or mobile device with an internet connection (free sign-up required). With Onshape’s secure cloud workspace teams can work together from anywhere on any device without the hassles of file management, IT overhead, and license key distribution, helping engineers focus more on doing their best work. Parametric CAD: • Design parts together in Part Studios with a full suite of parametric modeling tools • Create mechanical Assemblies to capture complex motion Ease of Access: • Create, edit, and view from any computer or mobile device (internet connection required) • Begin a project from one device and seamlessly continue from another Collaboration: • Instantly share your CAD data with your teams and partners. Monitor, change, and revoke permissions at any time • Work together with other users and view changes in real-time as they are made • Use Follow mode to see exactly what your teammate sees and add suggestions using Onshape’s built-in commenting tools Data Management: • Maintain a single source of truth for your data, no more sending around or checking in and out of files • Never worry about losing your work, all of your changes are saved automatically • Explore multiple design ideas in parallel and create professional release and approval processes for your designs Onshape for iOS also features Apple Pencil support for more intuitive sketching, navigation, and precise selection. Onshape proudly supports students and educators free of charge and is available free for non-commercial projects in an open-source public work space. Since Onshape is updated every few weeks with dozens of new features and user-requested enhancements, keep an eye out for update notifications from the Apple App Store.

Screenshots

Pst Mail4 screens
Onshape 3D CAD4 screens

Verdict

The call

The clearest difference is price: Onshape 3D CAD at Free against Pst Mail's $9.99. Onshape 3D CAD also leads on update cadence (every 3 weeks vs every 5 months) and ratings volume (417 vs 41). Pst Mail's advantage is rating (4.3 vs 3.5) and review sentiment (71% vs 47%). On 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

Onshape 3D CAD is free to download; Pst Mail costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Pst Mail holds the better App Store score, 4.3 against 3.5. That said, the two scores are not equally well evidenced: Onshape 3D CAD has 417 ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 71% of Pst Mail's written reviews are positive against 47% of Onshape 3D CAD's.

UpkeepUpdate frequency

Pst Mail ships an update every 5 months, Onshape 3D CAD every 3 weeks. Both last shipped on November 1, 2026.

Scorecard7 real differences · 3 level
Pst Mail versus Onshape 3D CAD: the parameters behind the verdict, then further details
ParameterPst MailOnshape 3D CAD
Price$9.99Free — better
Rating4.3 (41 ratings) — better3.5 (417 ratings)
Positive reviews71.4% of reviews — better47.3% of reviews
Number of ratings41417 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.0
Further details — not scored
Size40 MB77 MB
Age rating4+4+
DeveloperArrow Bit SLPTC Inc.

Customer experience

Pst Mail

All ratings40 ratings
Positive82.5%
Neutral5.0%
Negative12.5%
Written reviews98 reviews
Positive71.4%
Neutral7.1%
Negative21.4%

Onshape 3D CAD

All ratings417 ratings
Positive61.4%
Neutral6.0%
Negative32.6%
Written reviews425 reviews
Positive47.3%
Neutral6.4%
Negative46.4%

User reviews

Pst Mail

From 41 App Store ratings

What we love

  • 👍 Access PST files easily
  • 🚀 Fast search and loading
  • ✅ Works with large PST files
  • 📂 Preserves folder hierarchy
  • 📄 Opens attachments

Room to improve

  • 🐛 Crashes occasionally
  • 🚫 Live sync not working
  • ❌ Cannot delete emails
  • ❌ Cannot send new emails
  • ❌ Limited sync options

Onshape 3D CAD

From 417 App Store ratings

What we love

  • 🚀 Powerful CAD features
  • 🌐 Accessible from any device
  • 👍 Intuitive interface
  • 💡 Great for on-site work
  • 🌟 Exceptional for a free app

Room to improve

  • 🐛 Crashes and stability issues
  • 👎 Unintuitive and clunky UI
  • 🔒 Requires account sign-up
  • 💰 Expensive paid plans
  • 🔍 Difficult to find/use key features

Bugs and requests

Pst Mail

Reported bugs

12 issues
  • App crashes when printing
  • Live sync does not work
  • Cannot open PST files
  • Occasional crashes
  • App crashes when trying to sync more than one file from Dropbox
Show 7 more
  • Landscape mode not optimized, hangs on orientation change
  • PST Mail Sync app not working
  • Lite version hangs on large files
  • App shows no emails in preview after upgrading to full version
  • Cannot install on second iPhone using same ID
  • Cannot read PST files (unable to read message)
  • App crashes when trying to sync more than one file from Dropbox

Requested features

25 requests
  • Add quick scroll function for inbox
  • More sync options (OneDrive, Google Drive)
  • Better search tags
  • Direct link to Files app
  • Ability to delete emails
Show 20 more
  • Ability to send new emails
  • Support for OST files
  • Direct integration with Exchange account
  • Sort emails by subject/name
  • Search within email body
  • Option to delete individual emails
  • Option to add mails to PST
  • Reorganize folders and emails within PST
  • Move mails from iPad inbox into PST Mail
  • Sync to-do action flags
  • Improve user interface design
  • Sort order reversal
  • Download monitoring for large files
  • Add/remove individual folders from display
  • Import PST data by FTP server
  • Show calendar commitment dates
  • Sync with Outlook for iOS for replies/forwards
  • Ability to sort by date in reverse
  • Search across all PST files
  • Make it installable on second device with same ID

Onshape 3D CAD

Reported bugs

5 issues
  • Frequent crashes and freezes
  • Dimensions not visible/editable
  • Rotation/view controls unreliable
  • Unable to create account
  • Incompatible with older devices

Requested features

5 requests
  • Add keyboard shortcuts
  • Improve dimensioning tools
  • Allow private file storage
  • Optimize for iPad/Apple Pencil
  • Provide better documentation/tutorials

In-app purchases

None

Pst Mail

No in-app purchases

None

Onshape 3D CAD

No in-app purchases

Questions

Is Pst Mail free?
Pst Mail costs $9.99, with no in-app purchases.
Is Onshape 3D CAD free?
Onshape 3D CAD is free to download, with no in-app purchases.
Which has better reviews, Pst Mail or Onshape 3D CAD?
Pst Mail is rated higher. Pst Mail averages 4.3 out of 5 from 41 ratings, while Onshape 3D CAD averages 3.5 from 417 ratings.
Do Pst Mail or Onshape 3D CAD have ads?
Neither Pst Mail nor Onshape 3D CAD shows ads.
Which is updated more often, Pst Mail or Onshape 3D CAD?
Pst Mail ships an update every 5 months, and Onshape 3D CAD every 3 weeks. Most recently, Pst Mail was updated on November 1, 2026 and Onshape 3D CAD on November 1, 2026.

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