STL Simple Viewer vs Union Member Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STL Simple Viewer
Easily view and interact with 3D STL CAD models. Supports various file types and offers advanced rendering options for detailed analysis. Get model information and explore interiors with clipping planes.
- View ASCII and Binary STL files
- Load STL from ZIP
- Rotate, pan, and zoom
- Orthogonal and Perspective modes
- Model info (triangle count, bounding box)
- Rendering options (faces, edges, transparency)
- Clipping plane for interiors
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STL Simple Viewer is a great app to quickly view STL, 3MF & DXF 3D files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF & DXF files. - Load files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY, USD, STL & 3MF. - Measure distances between points within your model. - Rotate, pan, and zoom models with intuitive touch controls. - Configure rendering options: faces, edges, points, background and transparency. - Render using a clipping plane (useful for viewing model interiors). - View models in Orthographic or Perspective mode. - Obtain model information including triangle count, bounding box, surface area, and volume. Privacy Policy: https://www.boviosoft.com/apps/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For support or questions: support@boviosoft.com
Union Member Assistant
Organize union-related information, document workplace incidents, and manage grievances with guided workflows. Access contracts, record details, and generate professional reports for printing or sharing. This tool helps members and stewards stay prepared and informed.
- Document workplace investigations
- Manage grievance records
- Access and search contracts
- Generate PDF reports
- Offline access
- Transfer cases between users
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Union Member Assistant is an organizational toolkit for union members and stewards. Keep essential workplace information together, prepare for meetings, document incidents, manage grievances, and access your contracts wherever the job takes you. Use guided workflows to record workplace investigations, disciplinary meetings, member statements, supervisor details, supporting evidence, steward notes, and requested remedies. Create and track grievances from initial documentation through resolution, then generate a professional PDF for printing or sharing. Import collective bargaining agreements and other PDF documents for convenient access. Search contract text, jump directly to a page, save important sections as bookmarks, and exchange compatible bookmark files with other app users. Union Member Assistant can also help you: • Document workplace investigations and disciplinary matters • Prepare and manage detailed grievance records • Record hours, earnings, and related work information • Save notes, attachments, evidence, and signatures • Maintain union contacts and member information • Search imported contracts and bookmark key provisions • Generate, print, and share grievance PDFs • Transfer editable cases and grievances between app users • Back up and restore saved app information • Access built-in educational resources and workplace-rights guidance • Continue working with saved information while offline Designed with privacy in mind, saved records and imported documents are stored locally on your device. Optional device security features can help protect access to sensitive workplace information. Whether you are preparing for a meeting, reviewing contract language, documenting a concern, or organizing an active grievance, Union Member Assistant gives you a practical place to keep the details that matter. Union Member Assistant is an independent organizational and educational tool. It is not affiliated with, endorsed by any employer or labor organization. It does not provide legal advice and is not a substitute for your collective bargaining agreement, official union guidance, or advice from a qualified union representative or attorney. Always verify requirements, procedures, and filing deadlines with the applicable agreement and your union.
Screenshots
Verdict
The clearest difference is rating: Union Member Assistant at 5.0 against STL Simple Viewer's 4.3. Union Member Assistant also leads on ads (none vs shown) and update cadence (every 9 days vs every 5 months). STL Simple Viewer's advantage is ratings volume (920 vs 1). On price, in-app purchases, device support and iOS requirement 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
Both are free to download. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days and Union Member Assistant sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Union Member Assistant holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: STL Simple Viewer has 920 ratings behind it against 1, so its average is the more settled of the two.
STL Simple Viewer ships an update every 5 months, Union Member Assistant every 9 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.
| Parameter | STL Simple Viewer | Union Member Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (920 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 18.1% of reviews | — |
| Number of ratings | 920 — better | 1 |
| Update frequency | Every 5 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 19 MB | 13 MB |
| Age rating | 4+ | 12+ |
| Developer | Victor Bovio | Cory Johnson |
Customer experience
STL Simple Viewer
Union Member Assistant
Bugs and requests
STL Simple Viewer
Reported bugs
3 issues- App crashes when opening larger STL files
- Inability to open some file formats
- Ads continue to appear even after paying for ad removal
Requested features
3 requests- Add ability to save color/lighting settings
- Improve stability and reduce crashes
- Provide an ad-free paid version
Union Member Assistant
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STL Simple Viewer
- Pro version (1 week plan)$0.997 Days
- Pro version (1 month plan)3 Days trial$1.991 Month
- Remove Ads$2.99
- Export Pack$3.99
Union Member Assistant
- Full Version$6.99
Questions
Is STL Simple Viewer free?
Is Union Member Assistant free?
Which has better reviews, STL Simple Viewer or Union Member Assistant?
Do STL Simple Viewer or Union Member Assistant have ads?
Which is updated more often, STL Simple Viewer or Union Member Assistant?
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