Mobile app · iOS & Android · Own product
Take a photo, get a 3D model. Ready to download or send to Blender, Unity or Roblox with one tap.
01 · The problem
Anyone who wants a 3D model either spends years learning to model, or pays someone. For a hobby project that's too much to ask.
A character for your game, a part for your 3D printer, a prop for your Roblox world. The idea takes five seconds; making the model takes days — if you even know how.
AI can now turn a photo into a surprisingly good 3D model. But that technology is hidden behind developer tools, credits and file formats that don't work in the software you use.
Threely wraps that in an app anyone understands: take a photo, wait a moment, use the model. Where the model needs to go — Blender, Unity, Roblox or your printer — the app takes care of.
02 · How it works




Free · €0
GLB format, kept for 7 days. Ad-supported.
Hobby · €6.99
+ OBJ and STL for 3D printing, kept for 14 days.
Pro · €14.99
+ FBX, USDZ and zip bundles, kept for 30 days, priority in the queue.
Extra
Need a bit more? Individual credits from €1.99, no subscription.
03 · What's inside
An app that feels simple takes a lot of work behind the scenes. Here's a selection.
Three models in production at once, subscribers first. If a generation fails, you get your credit back automatically. If something gets stuck, the system cleans it up itself.
Models and previews are stored on your device. On the train with no signal? Your collection is simply there.
We produce the STL format for 3D printers in-house — so no extra cost per download and no dependence on third parties.
Blender, Unity and Roblox Studio each get their own plugin. Model ready in the app → appears in your project seconds later.
Pay, upgrade, pause. Payment confirmations are never processed twice; on a failed payment you get seven days' grace.
Free users occasionally see a short rewarded ad — neatly built in, with a fallback channel if the first provider has nothing.
Share your best models in the public gallery. An administrator approves what becomes visible.
Smart limits per device and connection stop anyone from draining the system with ten free accounts.
Type what you want instead of taking a photo. The engine already exists, the button in the app is on its way. Planned



04 · Under the hood
Device
One codebase for iOS and Android, with access to camera, files and notifications.
Server
Manages accounts, credits, queue, payments and the admin panel.
AI
Turns the photo into a 3D model. The backend tracks progress and fetches the result.
Storage
Models, previews and source photos, delivered fast worldwide.
Desktop
Blender, Unity and Roblox listen for new models over a live connection.



Everything that takes time happens in the background. The app requests a model, the server queues it, sends it to the AI, waits, converts the result into five formats and puts everything in the cloud. All the app has to ask is: “ready yet?”
That makes the system robust: close the app, lose signal, restart your phone — the generation simply continues and the result waits for you.
05 · Why this is different
Other tools give you a download. Threely puts the model straight into Blender, Unity or Roblox Studio — three plugins that talk to the app live.
A credit is reserved on request, refunded on failure and never counted twice. Boring to build, essential to trust.
By producing STL ourselves, we don't pay a supplier per download — and we can offer a free plan that stays sustainable.
The payment system is designed so that Apple and Google payments can later sit alongside Stripe, without rewriting the logic.
Ads only as a reward, never as a wall. Two providers in sequence, so there's always something to show — or nothing, and then you just carry on.
06 · What we learned along the way
Compressing a large model on the server used up all the memory — and the whole backend went down.
Errors are now logged instead of fatal. Compression sits behind a kill switch and is moving to a separate process. One heavy task can no longer drag down the rest.
A temporary hiccup at the AI provider marked generations as permanently failed.
An intermediate “unknown” status, a limited number of retries and a grace window. Temporary is not the same as broken.
The mobile 3D viewer sometimes disappeared or leaked memory after repeated opening.
Timers cleaned up properly and the graphics context released explicitly. Recovery after minimising the app is still on the list.
When switching payment keys, price references fell out of sync and the server refused to start.
Every price now self-heals separately at start-up and reports loudly what's wrong, instead of stopping at the first error.
07 · What's next
The full flow from photo to Blender/Unity/Roblox works on real devices.
A first group of users with a limited number of places.
In-app purchases alongside Stripe, with account deletion and data export.
Describe what you want instead of taking a photo.
Publishing the plugins, starting with Blender.
An app idea with AI in it?