KIRI Engine
Mobile 3D scanning app with photogrammetry, LiDAR, NeRF, and 3D Gaussian Splatting for iPhone, Android, and web.
KIRI Engine is the best free mobile 3D scanner we've tested: genuinely usable free tier, plus LiDAR, NeRF, and 3DGS all for a reasonable Pro price. If you need fast, production-ready scans for 3D printing, games, or AR, it's a no-brainer. For sub-mm industrial accuracy, look to desktop tools like RealityCapture.
Verified 4d ago · liveness 73/100 · cite: rightaichoice.com/tools/kiri-engine
- 3D printing enthusiasts who want quick, accurate scans without desktop software
- Game developers creating real-time assets using 3DGS with mesh export
- Artists capturing real-world objects for digital art and animation
- Designers and engineers needing product prototypes from physical objects
- Professionals needing sub-mm accuracy (use RealityCapture)
- Users who need fully offline processing—cloud-only means no internet, no scanning
- Scenes with heavy occlusion or fine hair/fur—photogrammetry struggles
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3 free scans · no card needed
Skip KIRI Engine if you need sub-millimeter accuracy for industrial metrology, require fully offline processing, or expect to scan scenes with heavy occlusion or fine hair/fur.
Upgrading from Basic to Pro is necessary to unlock Featureless Object Scan, 3DGS Scan with mesh, PBR materials, quad mesh, and auto-rig, so the free tier won't cover advanced needs.
KIRI Engine's free tier is genuinely usable with unlimited exports, which is rare among 3D scanning apps. The Pro plan at $6.66/month (yearly) is competitive with Polycam (which charges more for similar features) and Luma AI (which lacks mesh export). For hobbyists and small teams, the free tier often suffices; for professionals needing advanced features, the yearly Pro at $79.99 is a cost-effective upgrade over monthly $17.99.
In short
KIRI Engine — Mobile 3D scanning app with photogrammetry, LiDAR, NeRF, and 3D Gaussian Splatting for iPhone, Android, and web. Best for 3D printing enthusiasts who want quick, accurate scans without desktop software, Game developers creating real-time assets using 3DGS with mesh export, Artists capturing real-world objects for digital art and animation. Free to start; paid plans from $17.99/mo.
What people actually say about KIRI Engine — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
85 mentions across 5 sources (Hacker News, YouTube, App Store, Bluesky, Lemmy) · researched Jul 4, 2026.
- +Free unlimited scans and exports on the free tier.
- +Supports NeRF-based scanning for shiny and transparent objects.
- +Integrates photogrammetry, LiDAR, NeRF, and 3DGS in one app.
- +Blender add-ons for 3DGS rendering and mesh wrapping are free.
- +3DGS-to-mesh export is one of the best available, per HN users.
- −LiDAR scanning crashes repeatedly on iOS, especially newer iPhones.
- −App crashes then prompts for subscription, frustrating free users.
- −Fine details are often lost in exported meshes.
- −No built-in reference scaling—size accuracy is unclear.
- −Unable to create full 3D environments for real estate, per user.
- • Pro subscription required for quad mesh and PBR—not clear upfront that these are absent from free tier
- • Crash issues may force Pro subscription to use premium features that also crash
Viability Score
How well maintained and how widely used is KIRI Engine? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: August 2026
How we score →Key Features
- Photo Scan (photogrammetry) produces high-quality 3D mesh and textures
- LiDAR Scan for room, scene, and object capture on iOS devices
- Featureless Object Scan using NeRF for shiny/reflective/transparent objects
- 3D Gaussian Splatting (3DGS) scan with mesh-included export
- AI-generated PBR materials (Albedo, Roughness, Normal, Displacement)
- Quad mesh retopology with selectable poly count and curve ratio
- Auto-rig generation for animation and motion capture
- Dynamic decimation to reduce poly count
- High-poly export with million-level vertices and up to 8K textures
- Advanced camera control (shutter speed, exposure value)
- In-app cropping and texturing tools
- 3D model embedder for any website
- 3DGS plug-in for Unreal Engine 5
- Web-based upload and processing (cloud)
- API for developers
About KIRI Engine
KIRI Engine is a mobile-first 3D scanning app that combines photogrammetry, LiDAR capture, NeRF-based featureless scanning, and 3D Gaussian Splatting (3DGS) in one tool for iPhone, iPad, Android, and web. It lets you capture real-world objects, rooms, and scenes and turn them into production-ready 3D assets—meshes, textures, PBR materials—without needing desktop software. The app offers four scanning modes: Photo Scan for classic photogrammetry, LiDAR Scan for rooms and objects on iOS devices with LiDAR, Featureless Object Scan for shiny, transparent, or low-texture objects that trip up traditional photogrammetry, and 3DGS Scan for ultra-realistic, real-time renders that you can also export as physical meshes. After capture, you can clean up, texture, and optimize your models with in-app cropping, texturing, quad-mesh retopology, dynamic decimation, and AI-generated PBR materials (Albedo, Roughness, Normal, Displacement). You can even auto-rig your scans for animation. Exports support a range of formats including STL for 3D printing, and you can process scans in the cloud via the web companion. KIRI Engine is freemium: the free Basic plan is genuinely usable with no ads, no watermarks, and unlimited free exports, making it a favorite among 3D printing enthusiasts, game developers, artists, and engineers who need quick, affordable scans. The Pro tiers add the advanced scanning modes (Featureless and 3DGS) plus the PBR, quad mesh, and auto-rig tools, priced at $79.99/year or $17.99/month. Compared to Polycam and Luma AI, KIRI Engine's free tier is more generous, and it's one of the few mobile tools that includes NeRF and 3DGS support. It isn't a replacement for high-end desktop photogrammetry like RealityCapture for sub-mm metrology, but for quick, portable scanning, it's a top pick.
Behind the Verdict
KIRI Engine stands out in the mobile 3D scanning space for its combination of free access and advanced capabilities. The free tier is unusually generous—no ads, no watermarks, unlimited exports—which makes it a low-risk entry for hobbyists and professionals alike. The four scanning modes cover a wide range of use cases: Photo Scan for standard photogrammetry, LiDAR Scan for room and object capture on iOS, Featureless Object Scan (using NeRF) for shiny or transparent objects, and 3DGS Scan for real-time renders with mesh export. This breadth is rare in a single mobile app, and it's a key differentiator against competitors like Polycam and Luma AI. Strengths: The free tier is a genuine value proposition. Advanced features like AI-generated PBR materials, quad mesh retopology, auto-rigging, and mesh-inclusive 3DGS export are the kind of tools that usually require desktop software. The web companion extends processing beyond the phone, and the export formats (including STL for 3D printing) are practical. Weaknesses: The free tier limits scan size to 150 photos (2 GB) per scan, and the Pro tier to 500 photos (5 GB), which may feel restrictive for large projects. Free-tier processing can be slower due to queuing. The app relies on cloud processing, so you need an internet connection to process scans. There's no dedicated desktop app, though the web companion partially fills that gap. Where it fits: KIRI Engine is ideal for 3D printing enthusiasts, game developers needing quick asset capture, artists creating digital art from real objects, and designers or engineers prototyping with physical references. It's also suitable for architects and interior designers using LiDAR for room scans. Where it doesn't: If you need sub-millimeter accuracy for industrial metrology, you'll need desktop photogrammetry tools like RealityCapture. Scenes with heavy occlusion or fine hair/fur will challenge any photogrammetry-based approach.
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Real-world workflow fit
Concrete scenarios for the personas KIRI Engine actually fits — and what changes day-one when you adopt it.
You want to scan a small figurine to print a replica.
Outcome: Use Photo Scan or LiDAR Scan (if on iOS) to capture the object in minutes, then export as STL directly from the app. The free tier allows unlimited exports, so you can test and refine without cost.
You need a real-time asset for Unreal Engine.
Outcome: Use 3DGS Scan to capture a scene or object, export with mesh included, and import into Unreal Engine using the KIRI Engine 3DGS plug-in. The Pro tier enables this workflow with mesh-inclusive 3DGS export.
You want to create a quick floor plan of a room for a client.
Outcome: Use LiDAR Room Scan on an iPhone or iPad to capture the space, then export the scan for floor plan creation. In-app cropping and texturing help clean up the model for presentation.
Use Cases
- Scan a shiny ceramic mug with Featureless Object Scan for 3D printing.
- Capture your living room with LiDAR Room Scan to create a floor plan.
- Photograph a small sculpture with Photo Scan and export as OBJ for a game engine.
- Record a 3D Gaussian Splatting scene of a garden and export with mesh for VR.
- Use auto-rig to create an animated character from a scanned figurine.
- Use AI-Enhanced LiDAR to scan an interior for AR staging.
Models Under the Hood
as of 2026-08-20
Limitations
- The free tier includes up to 150 photos (max 2 GB) per scan, while the Pro plan allows up to 500 photos (max 5 GB).
- Free-tier processing may be slower due to queuing.
- Advanced features such as Featureless Object Scan, PBR materials, quad mesh, auto-rig generation, and mesh-inclusive 3DGS scan are only available on the Pro plan.
- The service is accessible on mobile (iPhone/iPad and Android) and via web browsers.
as of 2026-08-19
Verification history
We have re-verified KIRI Engine 5 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published KIRI Engine tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Basic
$0/mo
Ideal for
Casual users and hobbyists who want to try 3D scanning without paying, with no ads or watermarks and unlimited exports for small scans.
What this tier adds
Free entry point with Photo Scan, LiDAR Scan, in-app cropping, up to 150 photos per scan, and unlimited exports. No access to advanced modes or PBR tools.
Pro Yearly
$79.99/year ($6.66/mo)
Ideal for
Serious creators, game developers, and professionals who need advanced scanning modes and production-ready tools on a budget, paying annually for a lower effective monthly price.
What this tier adds
Adds Featureless Object Scan, mesh-inclusive 3DGS, PBR materials, quad mesh, auto-rig, and faster processing. Best value at $6.66/month billed annually.
Pro Monthly
$17.99/mo
Ideal for
Users who need Pro features for a short-term project or want to test advanced capabilities without committing for a full year.
What this tier adds
Same as yearly Pro but billed monthly at $17.99; no long-term commitment, but higher total cost over time.
Where the pricing makes sense
The company stage and team size where KIRI Engine's pricing actually pencils out — and where peers do it cheaper.
KIRI Engine's free tier is genuinely usable with unlimited exports, which is rare among 3D scanning apps. The Pro plan at $6.66/month (yearly) is competitive with Polycam (which charges more for similar features) and Luma AI (which lacks mesh export). For hobbyists and small teams, the free tier often suffices; for professionals needing advanced features, the yearly Pro at $79.99 is a cost-effective upgrade over monthly $17.99.
Setup time & first value
How long it actually takes to get something useful out of KIRI Engine — broken out by persona, not the marketing-page minute.
For a basic photo scan, you can scan and export within 15 minutes on the free tier. LiDAR scans are quicker—often under 5 minutes for a room. Advanced features like PBR and quad mesh require a Pro subscription and may add a few extra minutes for processing. Web processing requires an internet connection and may take longer on the free tier due to queuing.
Switching to or from KIRI Engine
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From Polycam: Export your raw photos or LiDAR scans from Polycam and re-upload them to KIRI Engine's Photo Scan for processing—KIRI's free tier allows unlimited exports, so you can test before subscribing.
- ↗To RealityCapture: Export your high-poly mesh and textures from KIRI Engine, then import into RealityCapture for refinement and sub-millimeter alignment if you need industrial accuracy.
Integrations
Resources & Guides
Tutorials & Learning
Official links
Tools that pair well with KIRI Engine
Common stack mates teams adopt alongside KIRI Engine, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
Kiri Engine vs Polycam
If you need advanced scanning of challenging surfaces (shiny/transparent) or 3DGS for real-time assets, KIRI Engine is the winner. For professional AEC workflows, automatic floor plans, or drone scanning, Polycam’s broader export list and professional support make it the better choice.
Kiri Engine vs Cognition Ai
Choose KIRI Engine for quick, high-quality 3D scans from mobile photos/LiDAR, perfect for hobbyists and game devs. Choose Cognition AI (Devin) if you're an enterprise engineering team needing an autonomous coder for complex tasks like bug triage, cross-platform builds, and legacy modernization—especially with the new Devin Desktop and $10M productivity guarantee. They serve entirely different needs; pick based on whether you need 3D assets or production code.
Kiri Engine vs Bito
KIRI Engine and Bito serve completely different needs: KIRI Engine is a mobile 3D scanning tool for creating real-world assets, while Bito is a system-wide context layer for AI coding agents. Your choice depends on whether you need 3D scanning or multi-repo code understanding. If you're in 3D printing or game dev, choose KIRI Engine; if you manage complex multi-repo projects with AI coding agents, choose Bito.
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