Sketch Viewer UP vs HighDeF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sketch Viewer UP
This application allows users to import and view 3D models from various professional design software. It supports a wide range of file formats, making it convenient for designers, engineers, and students to access and analyze 3D drawings on their mobile devices.
- Import and view 3D drawings
- Supports multiple professional 3D file formats
- Collection of standard industry libraries
- Mobile 3D viewing software
- Professional CAD drawing and modeling
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Sketch Up is a professional browsing software for 3D models 1. Professional software for designers, artists, scholars, students, teachers, engineering drafters, and engineers 2. A complete collection of standard libraries in various industries 3. Support importing and viewing 3D drawings, fast and convenient. 4. Multiple format support, including SolidWorks, ProE/Creo, sview, CATIA, Fbx, Ifc, Inventor, JT, Parasolid, PDMS, Rhino, U3D, UG, CGR, maya, LightWave mainstream format software, analysis and browsing dae, max , 3ds, obj, ABC, FBX, DAE, OBJ, BVH, DXF, PSK, STL, PLY, X3D, JCD, svp. At the same time, SU Sketch Master supports mobile phone 3D viewing software, providing SU, skp, Sketch Up, sketch, 3d model, 3D modeling, 3D, drawings, CAD, DWG, ability to view drawings. Professional CAD drawing and modeling! Privacy Policy: https://kdocs.cn/l/coraO45x7Hrz User Agreement: https://kdocs.cn/l/ciYVcrmHDELu
HighDeF
View HDF5 files on Apple devices. Browse groups and datasets, then display data as tables, plots, or images. Large files open instantly and remain responsive due to efficient loading.
- HDF5 file viewing
- Group and dataset browsing
- Data visualization (table, plot, image)
- Instant loading of large files
- Responsive performance
- Open source
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Views HDF5 files on Apple devices. Open an .h5 file and browse its groups and datasets in the sidebar, then read any dataset as a table, a plot, or an image — whichever suits the data. The app only reads the part of a dataset you are looking at, so even multi-gigabyte files open immediately and stay responsive. It is free and open source, and built on the HDF5 library.
Screenshots
Verdict
The clearest difference is rating: HighDeF at 5.0 against Sketch Viewer UP's 1.6. HighDeF also leads on in-app purchases (none vs 3). Sketch Viewer UP's advantage is ratings volume (10 vs 1) and update cadence (every 9 days vs every 3 weeks). On price, ads 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
Both are free to download. Sketch Viewer UP sells 3 one-off in-app purchases. HighDeF asks for nothing beyond the download.
HighDeF holds the better App Store score, 5.0 against 1.6. That said, the two scores are not equally well evidenced: Sketch Viewer UP has 10 ratings behind it against 1, so its average is the more settled of the two.
Sketch Viewer UP ships an update every 9 days, HighDeF every 3 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | Sketch Viewer UP | HighDeF |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (10 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 40 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | 骁宇 陈 | Twarge LLC |
Customer experience
Sketch Viewer UP
HighDeF
In-app purchases
Sketch Viewer UP
- 一季度会员$9.99
- 一年会员$24.99
- 永久会员$29.99
HighDeF
No in-app purchases
Questions
Is Sketch Viewer UP free?
Is HighDeF free?
Which has better reviews, Sketch Viewer UP or HighDeF?
Do Sketch Viewer UP or HighDeF have ads?
Which is updated more often, Sketch Viewer UP or HighDeF?
Other comparisons
