Comparison

STL Simple Viewer vs MandateOS

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

MandateOS

Features
Read full description

MandateOS is the all-in-one field tool for political campaign teams. Plan canvassing routes, track election posters, coordinate tasks, and keep your volunteers motivated - all from one app. Built for grassroots campaigning, MandateOS replaces scattered spreadsheets and group chats with a single, organized workspace for your whole team. POSTERS • Map every election poster with a photo and exact GPS location • Track each poster's condition: new, good, damaged, or removed • Instantly see which posters need a visit or replacement CANVASSING & FLYERING • Record door-to-door and flyering routes with live GPS tracking • Background tracking keeps logging even when the screen is locked • Add co-walkers so every participant gets credit for the distance • Capture voter sentiment street by street TASKS & EVENTS • Create, assign, and complete tasks across your team • Keep upcoming events and appointments in one place • Everyone always knows what to do next TEAM & MOTIVATION • A live leaderboard highlights your most active volunteers • Earn badges for milestones and achievements • Group chat and an activity feed keep everyone in sync • A personalized daily message welcomes each volunteer BUILT FOR THE WHOLE CAMPAIGN • Run multiple campaigns and teams • Roles for leaders, coordinators, and volunteers • Candidate profiles and campaign info at hand PRIVACY BY DESIGN MandateOS follows GDPR principles. Location is used only for route tracking and poster mapping, and you stay in control of your data. Please note: MandateOS is made for political campaigns in Germany, and the app's interface is in German.

Screenshots

STL Simple Viewer4 screens
MandateOS4 screens

Verdict

The call

The clearest difference is in-app purchases: MandateOS at none against STL Simple Viewer's 4. MandateOS also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price 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. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. MandateOS asks for nothing beyond the download.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 5 months, MandateOS every 2 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

Scorecard4 real differences · 6 level
STL Simple Viewer versus MandateOS: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerMandateOS
PriceFreeFree
Rating4.3 (909 ratings) — better—
Positive reviews18.1% of reviews—
Number of ratings909 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size19 MB51 MB
Age rating4+12+
DeveloperVictor BovioVin Mangelsdorf

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

MandateOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

STL Simple Viewer

Subscriptions2
  • Pro version (1 week plan)$0.997 Days
  • Pro version (1 month plan)3 Days trial$1.991 Month
One-time2
  • Remove Ads$2.99
  • Export Pack$3.99
None

MandateOS

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is MandateOS free?
MandateOS is free to download, with no in-app purchases.
Do STL Simple Viewer or MandateOS have ads?
STL Simple Viewer shows ads; MandateOS does not.
Which is updated more often, STL Simple Viewer or MandateOS?
STL Simple Viewer ships an update every 5 months, and MandateOS every 2 months. Most recently, STL Simple Viewer was updated on October 16, 2026 and MandateOS on October 6, 2026.

Other comparisons