Comparison

CADraw vs Sketch Viewer UP

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

Head to head
About

CADraw

Create and edit precise technical drawings with a variety of tools. Supports layers, annotations, and export to common formats like PDF and DXF. Ideal for detailed design work on mobile devices.

Highlights
  • Draw lines, circles, arcs
  • Shape editing and modification
  • Angle constraints
  • Endpoint and midpoint snapping
  • Numeric keypad for precise input
  • Layer management
  • Annotation tools
  • Export to PDF and DXF
Features
Read full description

Easily draw shapes such as lines, circles, and arcs, and easily edit and modify shapes with just a touch of the shape. Angle constraints can specify commonly used angles of 5 º -90 º. Snap endpoints, midpoints, vertical points, tangents, and intersections, allowing you to draw accurately. There are also dynamic auxiliary points that provide you with dynamic assistance when drawing each line. The numeric keypad can accurately specify distances during drawing or modification. Drag the dimension edit point to convert it to horizontal or vertical dimensions. Angle annotations, radius annotations, and arc annotations can all rival the excellent performance of desktop applications in creation or editing. Layer management, displaying or hiding layers, and locking layers. Annotation management can add annotation styles, modify annotation styles, colors, line widths, and other annotation shapes. The drawn drawings can be exported as PDF files or DXF data exchange files, and can be shared on the computer and opened using AutoCAD. Thank you very much to Graziano from Italy for providing Italian language translation and Сергей Ломонос Provide Russian translation.

About

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.

Highlights
  • 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
Features
Read full description

A professional 3D model browsing and viewing tool Designed for designers, artists, teachers, students, engineers, and those involved in engineering drawing, suitable for various professional scenarios in multiple industries. It comes with a vast library of industry-standard models and supports the import and viewing of various 3D drawings, with efficient and convenient operations. 1. Professional software for designers, artists, scholars, students, teachers, engineering drafters, and engineers 2. Comprehensive standard libraries for all industries 3. Supports importing and viewing 3D drawings, quick and convenient. 4. Supports multiple formats, including SKP, SolidWorks, ProE/Creo, sview, CATIA, Fbx, Ifc, Inventor, JT, Parasolid, PDMS, Rhino, U3D, UG, CGR, Maya, LightWave (mainstream formats), parsing and browsing dae, max, 3ds, obj, ABC, FBX, DAE, OBJ, BVH, DXF, PSK, STL, PLY, X3D, JCD, svp. At the same time, SU supports mobile 3D viewing software, professional CAD viewing, drawing, modeling! Privacy Policy: https://kdocs.cn/l/coraO45x7Hrz User Agreement: https://kdocs.cn/l/ciYVcrmHDELu

Screenshots

CADraw4 screens
Sketch Viewer UP4 screens

Verdict

The call

The clearest difference is review sentiment: CADraw at 50% against Sketch Viewer UP's 0%. CADraw also leads on rating (2.9 vs 1.6). On price, ratings volume, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CADraw sells 6 in-app purchases, starting at $1.39 per month and Sketch Viewer UP sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

CADraw holds the better App Store score, 2.9 against 1.6. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews point the same way: 50% of CADraw's written reviews are positive against 0% of Sketch Viewer UP's.

UpkeepUpdate frequency

CADraw ships an update fortnightly, Sketch Viewer UP every 8 days. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
CADraw versus Sketch Viewer UP: the parameters behind the verdict, then further details
ParameterCADrawSketch Viewer UP
PriceFreeFree
Rating2.9 (10 ratings) — better1.6 (10 ratings)
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings1010
Update frequencyFortnightlyEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size175 MB40 MB
Age rating4+17+
Developer诚 张骁宇 陈

Customer experience

CADraw

All ratings10 ratings
Positive40.0%
Neutral0.0%
Negative60.0%
Written reviews38 reviews
Positive50.0%
Neutral18.4%
Negative31.6%

Sketch Viewer UP

All ratings10 ratings
Positive10.0%
Neutral10.0%
Negative80.0%
Written reviews8 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

6 purchases

CADraw

Subscriptions4
  • Monthly subscription$1.391 Month
  • per month$2.991 Month
  • Annual subscription$13.901 Year
Show 1 more
  • per year$26.001 Year
One-time2
  • Upgrade to the full version$69.99
  • Full version$99.99
3 purchases

Sketch Viewer UP

One-time3
  • 一季度会员$9.99
  • 一年会员$24.99
  • 永久会员$29.99

Questions

Is CADraw free?
CADraw is free to download, with in-app purchases available.
Is Sketch Viewer UP free?
Sketch Viewer UP is free to download, with in-app purchases available.
Which has better reviews, CADraw or Sketch Viewer UP?
CADraw is rated higher. CADraw averages 2.9 out of 5 from 10 ratings, while Sketch Viewer UP averages 1.6 from 10 ratings.
Do CADraw or Sketch Viewer UP have ads?
Neither CADraw nor Sketch Viewer UP shows ads.
Which is updated more often, CADraw or Sketch Viewer UP?
CADraw ships an update fortnightly, and Sketch Viewer UP every 8 days. Most recently, CADraw was updated on November 3, 2026 and Sketch Viewer UP on November 3, 2026.

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