Comparison

SolidInsight vs STEP Viewer

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

Head to head
About

SolidInsight

View and collaborate on 2D and 3D CAD files on your mobile device without needing expensive desktop software. Measure designs, access properties, and share feedback instantly.

Highlights
  • Supports major 2D/3D CAD formats
  • View models and drawings on mobile
  • Measure design dimensions
  • Access design properties
  • Markup and share comments
  • Isolate/hide components
  • Browse assembly tree
Features
Read full description

SolidInsight is a proven professional CAD collaboration application. It supports all the major 3D and 2D CAD formats, including SOLIDWORKS, CREO / PRO-E, UG / NX, CATIA, Solid Edge, Inventor, AutoCAD and many more. SolidInsight on your phones or tablets assists you to instantly view 3D models and 2D drawings without expensive CAD editors or heavy computers. Whether you are reviewing designs with your team on the road, showing off your products to potential customers at a tradeshow, collecting design feedback from a client on a job site, or guiding a supplier on a factory floor, 3D at your fingertips gives you immediate CAD access, intuitive visual insights, and accurate properties such as mass, bounding box sizes, volumes, and other meta data. Beyond handy viewing, you can also measure models to obtain vital dimensions, capture views for quick revisits and 3D presentations. Features: * Intuitive and easy-to-use user interface * Supports all the major 3D and 2D formats as follows.sat, sab, cgr, model, session, CATPart, CATProduct, 3dxml, ifc, igs, iges, ipt, iam, jt, x_t, x_b, xmt_txt, xmt_bin, prt, asm, xas, 3dm, step, stp, par, psm, sldprt, sldasm, 3ds, bdf, jcd, obj, stl, ply, 3mf, glb, gltf, fbx, rvm, rvt, dwg, dxf. * Measure your design data * Access design properties * Isolate or hide components in the model for easy viewing * Zoom, pan and rotate your 2D or 3D CAD data using multi-touch * Browse your assembly components tree, configurations and drawing sheets * Create views,convince hiring managers, customers, partners, investors of your values in 3D. * View your designs in full screen * Markup your designs and send to others and read others’ markups * Share with stakeholders inside and outside your company * Search for parts in the model and see them automatically highlighted in the design * Sample files included Facebook: https://www.facebook.com/people/Hoteam-SolidInsight/100075484253549/ Service Terms:https://www.solidinsight3d.com/solidInsight/privacy/agreement.html Privacy Policy:https://www.solidinsight3d.com/solidInsight/privacy/privacy.html

About

STEP Viewer

Features
Read full description

STEP Viewer opens STEP (.step, .stp) CAD files in 3D on your phone. No desktop CAD software needed. Everything is free. There are no in-app purchases. Credits only skip the ad; without credits you can still open every file after watching a short ad. Key features * Open .step and .stp files straight from your file manager - just tap the file * Measure your model: a bounding box with all three side lengths, in mm or m * Six fixed views (front, right, back, left, top, bottom), plus pinch to zoom, pan and rotate * Save the converted model as GLB whenever you need it * Large files show the estimated time and memory before conversion starts, and progress while it runs * If a file cannot be opened, the app tells you why instead of failing silently * Available in 12 languages, following your device settings Supported formats * Input: .stp, .step (STEP AP203, AP214) * Output: .glb (glTF Binary) How to use 1. Tap a .step file in your file manager, or open the app and tap the folder icon 2. Wait for the conversion - large files show progress and an estimate 3. Drag to rotate, pinch to zoom, tap the view button to switch sides License This app uses Open CASCADE Technology (LGPL-2.1). https://www.opencascade.com For questions or bug reports, please contact us by email.

Screenshots

SolidInsight4 screens
STEP Viewer4 screens

Verdict

The call

The clearest difference is in-app purchases: STEP Viewer at none against SolidInsight's 3. STEP Viewer also leads on update cadence (every 5 days vs every 5 weeks). On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SolidInsight sells 3 in-app purchases, starting at $46.99 per year. STEP Viewer asks for nothing beyond the download.

UpkeepUpdate frequency

SolidInsight ships an update every 5 weeks, STEP Viewer every 5 days. The most recent releases landed on August 15, 2026 and September 17, 2026 respectively.

Scorecard2 real differences · 8 level
SolidInsight versus STEP Viewer: the parameters behind the verdict, then further details
ParameterSolidInsightSTEP Viewer
PriceFreeFree
Rating4.4 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size258 MB61 MB
Age rating4+4+
DeveloperSHANDONG HOTEAM SOFTWARE CO., LTD.Smart Cube Labs Co., Ltd.

In-app purchases

3 purchases

SolidInsight

Subscriptions2
  • Starter Annual Subscription$46.991 Year
  • Premium Annual Subscription$94.991 Year
One-time1
  • Unlock features in a design$0.99
None

STEP Viewer

No in-app purchases

Questions

Is SolidInsight free?
SolidInsight is free to download, with in-app purchases available.
Is STEP Viewer free?
STEP Viewer is free to download, with no in-app purchases.
Do SolidInsight or STEP Viewer have ads?
Neither SolidInsight nor STEP Viewer shows ads.
Which is updated more often, SolidInsight or STEP Viewer?
SolidInsight ships an update every 5 weeks, and STEP Viewer every 5 days. Most recently, SolidInsight was updated on August 15, 2026 and STEP Viewer on September 17, 2026.

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