Comparison

STL Simple Viewer vs Moku

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

Moku

This platform provides professional-grade scientific and engineering instruments on an iPad. It offers 16 versatile tools, including oscilloscopes and spectrum analyzers, with advanced customization options. Seamlessly control experiments, stream data, and share findings wirelessly.

Highlights
  • 16 professional-grade instruments
  • Customizable test setups
  • Wireless iPad control
  • Real-time data streaming
  • Cloud and email data sharing
  • Demo mode with simulated signals
Features
Read full description

Moku is a revolutionary all-in-one test and measurement platform for professional scientists and engineers, with 16 professional-grade instruments: • Oscilloscope • Spectrum Analyzer • Gigabit Streamer • Waveform Generator • Phasemeter • Data Logger • Lock-in Amplifier • PID Controller • FIR Filter Builder • Frequency Response Analyzer • Arbitrary Waveform Generator • Digital Filter Box • Laser Lock Box • Logic Analyzer / Pattern Generator • Time & Frequency Analyzer • Neural Network plus the ability to create your own customized test setup with Multi-Instrument Mode and GenInst Studio or Moku Compile. With high-speed analog inputs and outputs combined with reconfigurable FPGA hardware, the digital signal-processing capabilities are virtually limitless. The Moku app for iPad communicates wirelessly with your device and is mission control for all of your Moku instruments. Each instrument features an intuitive multi-touch user interface, thoughtfully designed and meticulously optimized for iPad. Stream data and control your experiment in real time as you move around the lab. Connect to Dropbox, iCloud or email to instantly save your data and share your breakthroughs with colleagues or friends. Try out the app in demo mode to interact with simulated signals and experience the innovative iPad interface. For more information visit www.liquidinstruments.com.

Screenshots

STL Simple Viewer4 screens

Verdict

The call

The clearest difference is rating: Moku at 5.0 against STL Simple Viewer's 4.3. Moku also leads on in-app purchases (none vs 4) and ads (none vs shown). STL Simple Viewer's advantage is ratings volume (866 vs 6). 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. Moku asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Moku 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 866 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 17% of STL Simple Viewer's written reviews are positive against 50% of Moku's.

UpkeepUpdate frequency

STL Simple Viewer ships an update every 20 months, Moku every 2 months. The most recent releases landed on September 23, 2026 and August 8, 2026 respectively.

Scorecard8 real differences · 2 level
STL Simple Viewer versus Moku: the parameters behind the verdict, then further details
ParameterSTL Simple ViewerMoku
PriceFreeFree
Rating4.3 (866 ratings)5.0 (6 ratings) — better
Positive reviews17.2% of reviews50.0% of reviews — better
Number of ratings866 — better6
Update frequencyEvery 20 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPad
Requires iOS17.015.0 — better
Further details — not scored
Size19 MB2.1 GB
Age rating+44+
DeveloperVictor BovioLiquid Instruments

Customer experience

STL Simple Viewer

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

Moku

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

Moku

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

Moku

No in-app purchases

Questions

Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Is Moku free?
Moku is free to download, with no in-app purchases.
Which has better reviews, STL Simple Viewer or Moku?
Moku is rated higher. STL Simple Viewer averages 4.3 out of 5 from 866 ratings, while Moku averages 5.0 from 6 ratings.
Do STL Simple Viewer or Moku have ads?
STL Simple Viewer shows ads; Moku does not.
Which is updated more often, STL Simple Viewer or Moku?
STL Simple Viewer ships an update every 20 months, and Moku every 2 months. Most recently, STL Simple Viewer was updated on September 23, 2026 and Moku on August 8, 2026.

Other comparisons