Comparison

Stitch Viewer Pro vs STL Simple Viewer

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

Head to head
About

Stitch Viewer Pro

View and manage embroidery and quilting designs with realistic previews. Supports numerous file formats and cloud storage integration. Offers a free version with limitations and a full Pro version for unlimited access.

Highlights
  • Realistic embroidery view
  • Supports major stitch formats
  • Supports major quilt formats
  • Cloud storage integration
  • Color matching to thread charts
  • Print designs with information
  • Preview with standard hoops
Features
Read full description

- Present your embroidery stitch designs in Realistic View. - Open all major embroidery stitch formats. - Open all major quilt formats. - Open email attachments. - Save to major embroidery stitch formats. - Specify the fabric color. - Match your design's colors to standard embroidery thread charts like Madeira, Robison Anton, Mettler, etc. - Print your design in PDF in color with information and thread palette. - Preview design with standard hoops. - Send to Printer, Email, etc. - Full support for Dropbox, Google Drive, Microsoft One Drive, etc. Supported stitch formats for opening embroidery designs from machine manufactures like Tajma, Barudan, Brother, Janome, Elna, Melco, Pfaff, Bernina, Happy, Juki, Singer, Viking, etc. DST, DSB, DSZ, SST, EXP, KSM, PCS, PCM, JEF, JEF+, JPX, SEW, HUS, VIP, VP3, VP4, SHV, PES, PEC, CSD, 10o, XXX, EMD, ART, TAP, M3, DAT, U01, ZSK, C2S, RDE, BLF, WAF and more. *EMB is not supported Supported Quilting formats for opening: QCC, CQP, HQF, SSD, IQP, HQV, QLI Supported stitch formats for exporting embroidery and quilting designs: PES, PEC, XXX, PCS, PCM, SEW, HUS, SHV, CSD, JEF, VIP, VP3, VP4, EXP, DST, DSB, DSZ, SST, KSM, DAT, U01, 10o, ZSK, TAP, M3, CQP, HQF, QLI, IQP, SSD. * The app downloads as a free version with no ads and with a number of free designs to demonstrate the app's Realistic View. In the free version some features are disabled and the Realistic View is banned partially with white stripes for own designs. The purpose of the free version is to verify the Stitch Viewer's compatibility with owned designs. After purchasing all limitations are gone and Stitch Viewer Pro works forever with all designs. ** All trademarks belong to their respective owners

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

Screenshots

Stitch Viewer Pro4 screens
STL Simple Viewer4 screens

Verdict

The call

The clearest difference is rating: STL Simple Viewer at 4.3 against Stitch Viewer Pro's 2.0. STL Simple Viewer also leads on ratings volume (917 vs 5) and update cadence (every 5 months vs every 28 months). Stitch Viewer Pro's advantage is ads (none vs shown) and iOS requirement (9.0 vs 17.0). On price, review sentiment, in-app purchases and monetization model 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. Stitch Viewer Pro sells 1 one-off in-app purchase and STL Simple Viewer sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

STL Simple Viewer holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: STL Simple Viewer has 917 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 23% of Stitch Viewer Pro's written reviews are positive against 18% of STL Simple Viewer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Stitch Viewer Pro ships an update every 28 months, STL Simple Viewer every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Stitch Viewer Pro versus STL Simple Viewer: the parameters behind the verdict, then further details
ParameterStitch Viewer ProSTL Simple Viewer
PriceFreeFree
Rating2.0 (5 ratings)4.3 (917 ratings) — better
Positive reviews22.7% of reviews — better18.1% of reviews
Number of ratings5917 — better
Update frequencyEvery 28 monthsEvery 5 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size16 MB19 MB
Age rating4+4+
DeveloperA.G.S. Active Graphics Software LtdVictor Bovio

Customer experience

Stitch Viewer Pro

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews22 reviews
Positive22.7%
Neutral9.1%
Negative68.2%

STL Simple Viewer

All ratings909 ratings
Positive80.3%
Neutral4.5%
Negative15.2%
Written reviews166 reviews
Positive18.1%
Neutral11.4%
Negative70.5%

Bugs and requests

Stitch Viewer Pro

Not enough reviews yet to summarise bugs or 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

In-app purchases

1 purchases

Stitch Viewer Pro

One-time1
  • Feature Pack$4.99
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

Questions

Is Stitch Viewer Pro free?
Stitch Viewer Pro is free to download, with in-app purchases available.
Is STL Simple Viewer free?
STL Simple Viewer is free to download, with in-app purchases available.
Which has better reviews, Stitch Viewer Pro or STL Simple Viewer?
STL Simple Viewer is rated higher. Stitch Viewer Pro averages 2.0 out of 5 from 5 ratings, while STL Simple Viewer averages 4.3 from 917 ratings.
Do Stitch Viewer Pro or STL Simple Viewer have ads?
STL Simple Viewer shows ads; Stitch Viewer Pro does not.
Which is updated more often, Stitch Viewer Pro or STL Simple Viewer?
Stitch Viewer Pro ships an update every 28 months, and STL Simple Viewer every 5 months. Most recently, Stitch Viewer Pro was updated on October 24, 2026 and STL Simple Viewer on October 25, 2026.

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