iSectionLite vs DWG FastView
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iSectionLite
This engineering app calculates mechanical and structural properties for built-up section members. It supports various international steel shapes and allows input and output in both metric and imperial units.
- Calculates moment of inertia, modulus of section, radius of gyration, area, and weight
- Supports European, American, Canadian, and British steel shapes
- Input and output in mm or inch units
- Calculations in principal axes
- Light version with limitations on hot rolled library and flange dimensions
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iSection: For all structural engineers, steel designers, mechanical engineers: This engineering application for the iPhone or the iPod Touch calculates the mechanical and structural properties of three-plate built up section members. That includes moment of inertia, modulus of section, radius of gyration, area and weight. The calculations are done in both principal axes. This program is particularly useful for analysis and design of indeterminate structures and for calculating actual and allowable (permissible) stresses of structural members (beams, columns, etc.). The input is top flange width, top flange thickness, bottom flange width, bottom flange thickness, web depth and web thickness. The top flange and bottom flange dimensions can vary. You can select a section from a large library of hot rolled shapes: European IPE, HEA, HEB, HEM and American W shapes Canadian W metric shapes and British universal beams and columns (UB and UC shapes). More shapes from other countries will be added in the next releases. The input can be in mm or inch units, the output of area, Ixx, Sxx, Sxt, Sxb, Iyy, Iyt, Iyb, Syy rx, ry, rt, rb, Syt, Syb, depth and neutral axis can be displayed in mm or inch units. The weight can be displayed in kg/m or Lb/ft. This is a light version with limitations: The hot rolled library contains selected American shapes only and the built up section can have only equal top and bottom flanges. For the full version see iSection in the App Store. See also iConcrete in the App Store which designs single and double reinforced concrete rectangular and T beams.
DWG FastView
This cross-platform CAD application allows users to view, edit, and create 2D and 3D designs on the go. It supports a wide range of file formats and offers advanced tools for precise drawing, measurement, and annotation, even offline.
- View and edit 2D/3D CAD drawings
- Supports over 40 3D drawing formats
- Accurate measurement and annotation tools
- Export to PDF, BMP, JPG, PNG
- Offline access and no registration required
- Full compatibility with AutoCAD (DWG, DXF)
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Enjoy design anytime anywhere together with more than 100 million users around the world. [3D Modeling]: Supports BIM, Revit, Solidworks, NX, CATIA, Inventor, SolidEdge, ACIS, Pro/E, and other mainstream 3D design software models. Supports browsing over 50 formats of 3D drawings, including .rvt/.sldprt/.sldasm/.asm/.prt/.prt.*/.asm.*/.stp/.step. 3D Features include 3D model assembly part preview, scaling, rotation, sectioning, and explosion; 3D measurement (distance measurement between points, lines, and surfaces, arc length, etc.), 3D annotation; PMI display and hiding; free color matching; viewing and multiple views; DWG FastView is a cross-platform CAD software that meets designers’ demands in all kinds of situation, and fully compatible with AutoCAD (DWG, DXF). Various of CAD features such as: Edit, View, Measure, Dimension, Find text, etc. enables you do real CAD work on the go. 【DWG FastView Highlights】 (1) Accurate and fast access your drawings •Creating, viewing and editing with with easy-to-use advance tools. • There is no limit to how large the file is. • Fully compatibility with AutoCAD. (2) Support export to PDF, BMP, JPG and PNG, and share it to anyone freely • Transfer CAD drawings into PDF format and customize its paper size, orientation, color and so on. • Convert PDF to DWG. (3) No registration & Offline drawings • Simply download DWG FastView and use it immediately with NO REGISTRATION needed. • Without internet, you are able to save your masterpieces in the local workspace. • Drawings from E-mail, Cloud Service or Network Disk like Dropbox, OneDrive, Google Drive, Box or WebDAV can be opened, viewed, edited and shared as well with Internet. (4) Do real CAD work on mobile. • Move, Copy, Rotate, Scale, Color, Measure object, record management results, manage layers and use Layout. • Advanced drawing and editing tools such as trim, offset, dimension and find text. •Set precision and display formats of coordinates, distance and angle. • Zoom in or zoom out a CAD drawing by adjusting the space between two fingers. • Import or download the CAD drawing with its fonts and symbols to the font’s folder in order to display all uncommon fonts. (5) Easily switch between 2D and 3D mode, 3D mode include: 3D Wireframe, Realistic and 3D Hidden with the powerful tools of Layer, Layout, and ten different perspectives viewing. • View 3D models, View different CAD file formats including: RVT, Solidworks, Creo, NX, CATIA, Inventor, SolidEdge and more than 40 formats; • Rotate 3D CAD drawing by touching the drawing area and moving to view the 3D mode comprehensively in 360 degrees. Click the screen to stop rotating and locate the 3D mode at the best perspective. (6)Precise Drawing available, e.g., user can change the number of the coordinates to move the points precisely. • Support 2D absolute coordinates, relative coordinates and polar coordinates and 3D Spherical coordinates and Cylindrical coordinates. (7) Stay connected. Helpful and responsive technical support. Click the “Feedback” button to send your tech problem to us via email. 【Auto-renew Subscription Notification】 Auto-renew Subscription Cycle: Subscriptions are billed monthly and annually at the rate based on the subscription plan. Please choose the subscription cycle you need and confirm before payment. Payment: Payment will be charged to your iTunes、App Store account at purchase confirmation. Cancellation of Subscription: You can turn off auto-renew at any time from your iTunes/App Store account settings; you must do so at least 24 hours before the end of the current subscription period to avoid being billed for the next cycle. Privacy Policy:https://www.gstarcad.com/agreement/privacy-app Terms of Use:http://www.gstarcad.com/Terms-of-use Apple Standard License Agreement(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Feedback Email: support@dwgfastview.com
Screenshots
Verdict
The clearest difference is rating: DWG FastView at 4.5 against iSectionLite's 1.8. DWG FastView also leads on update cadence (every 4 weeks vs every 46 months) and ratings volume (1.1K vs 12). iSectionLite's advantage is in-app purchases (none vs 9) and ads (none vs shown). On price 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. DWG FastView sells 9 in-app purchases, starting at $0.99 per month. iSectionLite asks for nothing beyond the download.
DWG FastView holds the better App Store score, 4.5 against 1.8. That said, the two scores are not equally well evidenced: DWG FastView has 1.1K ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 50% of iSectionLite's written reviews are positive against 69% of DWG FastView's.
iSectionLite ships an update every 46 months, DWG FastView every 4 weeks. Both last shipped on October 23, 2026.
| Parameter | iSectionLite | DWG FastView |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (12 ratings) | 4.5 (1.1K ratings) — better |
| Positive reviews | 50.0% of reviews | 68.6% of reviews — better |
| Number of ratings | 12 | 1.1K — better |
| Update frequency | Every 46 months | Every 4 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 0 MB | 418 MB |
| Age rating | 4+ | 17+ |
| Developer | ahmj | Gstarsoft Co., Ltd |
Customer experience
iSectionLite
DWG FastView
Bugs and requests
iSectionLite
Not enough reviews yet to summarise bugs or requests.
DWG FastView
Reported bugs
4 issues- Crashes when opening certain DWG files
- Issues with file uploads and synchronization
- Incompatibility with some device models
- Unreliable performance after recent updates
Requested features
5 requests- Support for 3D CAD files
- Improved layer management
- Better integration with cloud storage services
- Customizable units and dimensions
- More advanced drawing and editing tools
In-app purchases
iSectionLite
No in-app purchases
DWG FastView
- 1 month$0.991 Month
- 1 month$7.991 Month
- 12 months$8.991 Year
Show 6 moreShow fewer
- 3 months$9.993 Months
- 1个月超级帐户测试$12.991 Month
- 1 month$14.991 Month
- 3 months$14.993 Months
- 12 months$47.991 Year
- 12 months$69.991 Year









