Comparison

STL Simple Viewer vs 3D Cost

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 3D STL & 3MF files and export them to the most commonly used CAD formats. Features: - Supports STL files both ASCII and Binary formats. - Supports 3MF files. - Load STL and 3MF files directly from ZIP archives. - Export to DXF, OBJ, DAE, PLY and USD. - Rotate, pan, and zoom models with intuitive touch controls. - Measure distances between points within your model. - 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

3D Cost

Calculate the true cost of your 3D prints with this intuitive calculator. It helps enthusiasts and professionals determine production expenses and set profitable selling prices by analyzing filament, print time, and energy consumption.

Highlights
  • Detailed cost calculation
  • Comprehensive cost reports
  • Selling price suggestions
  • Cost simulation
  • Printer registration and management
  • Calculation history
Read full description

Discover the True Cost of Your 3D Prints with the 3D Printing Calculator! This intuitive app was designed to help 3D printing enthusiasts and professionals accurately calculate production costs and set appropriate selling prices. Our tool makes the cost evaluation process simpler and more precise. Key Features: Detailed Cost Calculation: Enter filament data, print time, energy consumption, and other parameters to get a complete cost analysis. Comprehensive Reports: View all detailed costs, including material usage, energy, machine maintenance, and other variable expenses. Selling Price Suggestions: Set your desired profit margin and get suggested selling prices to ensure profitability. Cost Simulation: Experiment with different parameters and see how they affect the total cost and suggested price. Printer Registration: Register and manage all your 3D printers. Calculation History: View all past calculations with details like date, printer used, consumption values, and notes.

Screenshots

STL Simple Viewer4 screens
3D Cost4 screens

Verdict

The call

The clearest difference is review sentiment: 3D Cost at 75% against STL Simple Viewer's 17%. 3D Cost also leads on in-app purchases (none vs 4) and update cadence (every 6 weeks vs every 20 months). STL Simple Viewer's advantage is price (Free vs $0.99) and rating (4.3 vs 1.0). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

STL Simple Viewer is free to download; 3D Cost costs $0.99 up front. STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. 3D Cost asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STL Simple Viewer holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: STL Simple Viewer has 866 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 17% of STL Simple Viewer's written reviews are positive against 75% of 3D Cost's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 20 months, 3D Cost every 6 weeks. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
STL Simple Viewer versus 3D Cost: the parameters behind the verdict, then further details
ParameterSTL Simple Viewer3D Cost
PriceFree — better$0.99
Rating4.3 (866 ratings) — better1.0 (1 ratings)
Positive reviews17.2% of reviews75.0% of reviews — better
Number of ratings866 — better1
Update frequencyEvery 20 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.0 — better
Further details — not scored
Size19 MB3 MB
Age rating+44+
DeveloperVictor BovioMarcos Roberto Hohl

Customer experience

STL Simple Viewer

All ratings866 ratings
Positive80.4%
Neutral4.5%
Negative15.1%
Written reviews157 reviews
Positive17.2%
Neutral10.8%
Negative72.0%

3D Cost

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

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

3D Cost

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 to OBJ, DAE, DXF, PLY$3.99
None

3D Cost

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is 3D Cost free?
3D Cost costs $0.99, with no in-app purchases.
Which has better reviews, STL Simple Viewer or 3D Cost?
STL Simple Viewer is rated higher. STL Simple Viewer averages 4.3 out of 5 from 866 ratings, while 3D Cost averages 1.0 from 1 ratings.
Do STL Simple Viewer or 3D Cost have ads?
Both STL Simple Viewer and 3D Cost show ads.
Which is updated more often, STL Simple Viewer or 3D Cost?
STL Simple Viewer ships an update every 20 months, and 3D Cost every 6 weeks. Most recently, STL Simple Viewer was updated on September 26, 2026 and 3D Cost on September 21, 2026.

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