CAD Viewer Friendly vs Digit 3D CAD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CAD Viewer Friendly
View and measure 3D models like STEP and STL files directly on your iPhone or iPad. Analyze dimensions, create orthographic views, and export your designs as PNG, DXF, or PDF. Perfect for quick design checks on the go.
- Open STEP, STP, and STL files
- Measure distances and arcs
- Create orthographic views
- Export as PNG, DXF, and PDF
- Rotate, zoom, and pan with touch controls
- View automatically detected dimensions
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Open STEP, STP and STL models on your iPhone or iPad in seconds. Inspect overall dimensions, measure distances and arcs, create orthographic views, and export proportion-correct PNG, DXF and vector PDF files—all directly on your device. FAST 3D INSPECTION • Open STEP, STP and STL files • Rotate, zoom and pan with intuitive touch controls • Read automatically detected overall dimensions • Change model colors for clearer presentation MEASURE & ANALYZE • Measure distances between selected points • Measure arcs on continuous curved edges • Review TOP, FRONT and RIGHT orthographic views EXPORT & SHARE • Export proportion-correct PNG engineering views • Export DXF and vector PDF views • Share results with classmates, clients, coworkers or friends Designed for students, 3D creators, engineers, makers, CNC users and technical sales teams who need quick answers away from a desktop. Files are processed locally on the device. No account registration or login is required. Always verify critical dimensions before manufacturing. An Apple-confirmed annual subscription or one-time Lifetime Full Access purchase is required before using the app. Eligible new subscribers receive a 3-day free trial. If the trial is not cancelled before it ends, Apple charges the localized annual price shown in the purchase sheet and the subscription renews automatically. Manage or cancel the subscription in Apple Account settings. Lifetime Full Access: NT$599 in Taiwan or US$19.99 in the United States, charged once with no time limit. Apple-localized prices are shown before purchase. The 3-day free trial applies only to eligible annual subscriptions, not the one-time purchase. Buying lifetime access does not cancel an existing annual subscription. If no valid entitlement remains after a trial or subscription expires, features are locked; purchase and Restore Purchases remain available in Settings. Privacy Policy: https://friendlyappios.netlify.app/#cad-viewer-friendly-privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Need animated outline lighting or marquee text? Search for Lighting Friendly on the App Store.
Digit 3D CAD
Create 3D models and designs on your mobile device. Offers free sketching and modeling tools, with an optional subscription for advanced features like export, rendering, and analysis.
- 3D sketching and modeling
- Parametric history
- STEP/STL/3MF export (Pro)
- Section views (Pro)
- Measurement and analysis (Pro)
- Rendering (Pro)
- Drawing export (Pro)
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Digit 3D is parametric 3D CAD for iPhone and iPad: sketch, model, assemble and make drawings. Sketch • Lines, circles, arcs, splines, ellipses, polygons and slots, with dimensions and constraints • Mirror; linear, circular and along-curve patterns; trim, extend, chamfer and fillet • Apple Pencil support for precise drawing Model • Extrude, revolve, sweep, loft, shell, fillet, chamfer, hole, thread, pattern and mirror • Auto boolean: cuts when it overlaps, joins when it touches, new body when apart • Direct editing: move, rotate and copy faces, with adjacent fillets following along • Surfaces, 3D curves and 3D splines • Parametric history: edit any step at any time, and replay how the model was built Assembly and drawings • Assembly lives in the modeling workspace: new parts, move parts, auto-detected mates, clash check • 2D drawings with standard views, sections and dimensions; 3D annotations export with STEP Two interfaces • Full: every command, with customizable side rails • Simple: tap a face and drag the arrow, easy for beginners Files • Import STEP, IGES, STL, OBJ, 3MF, 3DM, Parasolid (X_T) and DXF drawings • Projects are saved as encrypted .d3d files Privacy Policy: https://digit3d.top/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is monetization model: Digit 3D CAD at freemium against CAD Viewer Friendly's subscription. Digit 3D CAD also leads on update cadence (every 2 days vs every 4 days). On price, rating, ratings volume and ads 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. CAD Viewer Friendly sells 1 in-app purchase, starting at $8.99 per year and Digit 3D CAD sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for CAD Viewer Friendly against 5.0 for Digit 3D CAD. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
CAD Viewer Friendly ships an update every 4 days, Digit 3D CAD every 2 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.
| Parameter | CAD Viewer Friendly | Digit 3D CAD |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 12 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | jian-nan lan | 运保 罗 |
In-app purchases
CAD Viewer Friendly
- Annual Full Access3 Days trial$8.991 Year
Digit 3D CAD
- Digit 3D Pro (monthly)$1.991 Month
- Digit 3D Max (monthly)$2.991 Month
- Digit 3D Pro (yearly)$9.991 Year
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- Digit 3D Max (yearly)$17.991 Year
Questions
Is CAD Viewer Friendly free?
Is Digit 3D CAD free?
Which has better reviews, CAD Viewer Friendly or Digit 3D CAD?
Do CAD Viewer Friendly or Digit 3D CAD have ads?
Which is updated more often, CAD Viewer Friendly or Digit 3D CAD?
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