STL Simple Viewer vs UnlockedPerformanceApp
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
UnlockedPerformanceApp
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Test application for a patented automotive stand-alone module that is retrofitted to convert non-powered tailgate to a powered tailgate. The app monitors the state of the module to show the device state. This app is a dedicated hardware companion tool designed exclusively to connect via Bluetooth Low Energy (BLE) to the TinyWinch-V1 physical automotive tailgate winch system.
Screenshots
Verdict
The clearest difference is in-app purchases: UnlockedPerformanceApp at none against STL Simple Viewer's 4. UnlockedPerformanceApp also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 months). On price, 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. UnlockedPerformanceApp asks for nothing beyond the download.
STL Simple Viewer ships an update every 5 months, UnlockedPerformanceApp every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | STL Simple Viewer | UnlockedPerformanceApp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (923 ratings) — better | — |
| Positive reviews | 18.1% of reviews | — |
| Number of ratings | 923 — better | — |
| Update frequency | Every 5 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 19 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Victor Bovio | FRANCIS JUNGWON LEE |
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
UnlockedPerformanceApp
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
UnlockedPerformanceApp
No in-app purchases
Questions
Is STL Simple Viewer free?
Is UnlockedPerformanceApp free?
Do STL Simple Viewer or UnlockedPerformanceApp have ads?
Which is updated more often, STL Simple Viewer or UnlockedPerformanceApp?
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