3D Simplify vs ScanToPrint
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Simplify
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Too heavy to send, open or load in AR? 3D Simplify makes 3D models lighter on your device: fewer polygons, smaller textures, the same look. It opens LiDAR, photogrammetry and Object Capture scans as well as models from other apps, and exports a light USDZ, GLB or OBJ. Nothing is uploaded and there is no account to create. SEE WHERE THE SIZE IS Most 3D files are mostly textures. 3D Simplify shows how much of a file is textures and how much is geometry. When textures make up most of it, Compress Textures Only (Pro) shrinks them in one tap and keeps every face. WHO IT IS FOR • 3D scanning users whose LiDAR, photogrammetry or Object Capture results are too heavy to share or open in AR • AR, RealityKit and visionOS developers who need assets that load quickly in AR Quick Look • Game developers building LODs and trimming heavy props for real-time engines • Online stores and web teams shipping 3D product models that have to download fast • Engineers and designers turning machinery and CAD-style models into something an iPhone can show HOW IT WORKS 1. Open a model from the Files app, or drag it into the viewer on iPad and Mac. 2. Let Auto pick the reduction, or set a ratio, face count or file size (Pro). 3. Compare Original and Simplified side by side, shaded or in wireframe. 4. Export USDZ, or GLB and OBJ with levels of detail (Pro). FREE • Automatic smart reduction that picks the target polygon count for you • Viewer with shaded, untextured and wireframe views, side-by-side comparison and a frame button; the camera stays put when you switch • Live face count, file size and texture/geometry split • Preview in AR Quick Look before you share • USDZ export at the model's real-world size • Batch Reduce for a folder of up to 3 models at a fixed 50% reduction • Shortcuts action for your own automations • Interface in English, 繁體中文, 简体中文, 日本語 and 한국어 3D SIMPLIFY PRO • Reduce by ratio in 5% steps, by target face count or by target file size • Hard-surface mode: removes whole edge loops so cylinders and machinery stay round and evenly spaced instead of turning into slivers • Texture Size (Original, 1/2, 1/4) and one-tap Compress Textures Only • Re-bake Textures: re-wraps the textures onto the lighter mesh and keeps normal, roughness, metallic, transparency and glow maps. Up to 8K on Mac and on iPads with 16 GB of memory, 4K on iPads with 8 GB • Hausdorff quality reading and output validation after a re-bake • GLB and OBJ export, plus LOD0, LOD1 and LOD2 in one go • Saved Models Library • Unlimited files per batch run, with Texture Size and Re-bake FORMATS • Open: USDZ, USD, USDA, USDC, OBJ, STL, PLY, GLB, glTF, and ZIP files containing a model • Export: USDZ (free), GLB and OBJ (Pro) PRIVACY AND PERFORMANCE Everything runs on your device and the texture steps are Metal-accelerated. No account, no upload, no cloud - it works in airplane mode. PLEASE NOTE 3D Simplify makes a model you already have lighter. It is not a 3D scanner or a modelling app, and it does not remesh or repair broken geometry. Reducing a mesh always removes detail, so the side-by-side view is there for you to decide how much is acceptable. PLATFORMS iPhone and iPad (iOS/iPadOS 17 or later) and a native Mac app (macOS 14 or later). SUBSCRIPTION 3D Simplify Pro is an auto-renewing subscription: US$2.99 per month or US$19.99 per year (US pricing; your local price is shown before you confirm). Payment is charged to your Apple Account at confirmation of purchase. It renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and renewal is charged within 24 hours before the period ends. Manage or cancel any time in Settings > Apple Account > Subscriptions. Privacy Policy: https://mapohin.com/3dSimplifier/policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://mapohin.com/3dSimplifier/support
ScanToPrint
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ScanToPrint turns your iPhone's LiDAR sensor into a pocket 3D scanner. Capture real-world objects in seconds and export clean, print-ready models straight to your 3D printer — no computer required. From keepsakes and figurines to vases and mechanical parts, ScanToPrint makes high-quality 3D capture simple. Every scan is automatically processed so it is ready to slice and print. KEY FEATURES • LiDAR 3D Scanning — Use your iPhone's LiDAR sensor to capture detailed 3D scans of real-world objects. • Print-Ready Optimization — Meshes are automatically processed: background removed, geometry optimized, and a flat base added for stable printing. • Real 3D Preview — Inspect every model with an interactive 3D viewer showing exact dimensions on each axis. • Print Estimation — See estimated volume, print time, and material weight before you start printing. • Flexible Export — Export print-ready STL (Binary or ASCII) and OBJ files with your preferred coordinate system. • Scale Control — Resize any model from 10 percent to 500 percent before exporting. • Project Library — Keep all your scans organized with mesh details, dimensions, and file sizes. • 100% Offline & Private — No account, no network, no tracking. Every scan stays on your device. Note: ScanToPrint requires a device with a LiDAR sensor (iPhone 12 Pro and later, iPad Pro 2020 and later). Start scanning the world and bring it to your 3D printer with ScanToPrint.
Screenshots
Verdict
The clearest difference is in-app purchases: ScanToPrint at none against 3D Simplify's 2. 3D Simplify's advantage is device support (3 vs 1). On price, ads 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
Both are free to download. 3D Simplify sells 2 in-app purchases, starting at $2.99 per month. ScanToPrint asks for nothing beyond the download.
| Parameter | 3D Simplify | ScanToPrint |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Po hin Ma | 晓 郭 |
In-app purchases
3D Simplify
- Reduce3D Pro Monthly$2.991 Month
- Reduce3D Pro Yearly$19.991 Year
ScanToPrint
No in-app purchases
Questions
Is 3D Simplify free?
Is ScanToPrint free?
Do 3D Simplify or ScanToPrint have ads?
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