A 3D + AI web application for kids, built by Hoop, marketed by Hoop.
LetsPut needed a children's creative platform where kids photograph real crafts and see them in personal virtual galleries, with strict privacy, parent-friendly onboarding and a calm, non-competitive interface. Our team built the Next.js 16 and Supabase platform and is integrating the Unity WebGL 3D layer; the same agency handles its SEO.
- Client
- LetsPut
- Industry
- Kids’ Creative Tech
- Timeline
- 2025, Ongoing
- Status
- In Progress
In short
LetsPut is a children's platform that bridges physical and digital creativity, and it needed to be safe by design. We built it as a full-stack Next.js 16 and React 19 application on Supabase, with privacy enforced at the database layer, an interface designed through our product design process to stay calm and non-competitive, and a Unity WebGL layer being integrated for 3D galleries.
- Full-stack build on Next.js 16, React 19, TypeScript and Supabase
- Privacy-first architecture with row-level security and per-user data isolation
- Kid-first UI: calm, distraction-free, no gamification or social comparison
- Unity WebGL 3D runtime integrated into a modern React application
A children's product with a demanding 3D layer
LetsPut sits at an unusual intersection. A children’s product raises the bar on safety and privacy, while a 3D gallery inside a modern React stack raises the bar on engineering. Each half of the brief made the other harder.
Nothing could be treated as an afterthought: authentication had to work for parents, the interface had to stay calm and free of competitive mechanics, and user-generated photos needed scalable storage that stayed isolated per account.
A safe, calm environment
A digital space appropriate for children: nothing noisy, nothing manipulative, nothing competitive.
Parent-friendly secure authentication
Secure sign-in with simple, transparent onboarding for the parents who manage each child’s profile.
Privacy-first data isolation
Every account’s data had to be completely isolated from every other account’s, by design.
An interface without gamification
An intuitive UI with no leaderboards, no competitive elements and no social comparison.
Unity WebGL inside React
Integrating a Unity 3D runtime into a modern Next.js and React application without compromising either.
Scalable media storage
Storage for user-generated photos and assets that scales with growth while staying private per account.
Privacy at the data layer, calm at the interface layer
We built LetsPut on Next.js 16 and React 19 with TypeScript, using Supabase for authentication, storage and the database. Privacy is enforced through Supabase row-level security, so each account’s data is isolated at the database itself rather than relying on application code alone.
The interface uses Radix UI and shadcn/ui components with Tailwind CSS, keeping it minimal, calm and responsive across devices. On that foundation, we are integrating a Unity WebGL runtime to power immersive 3D virtual galleries.
What's live, and what's still being built
LetsPut is an ongoing engagement, built in phases. The account, profile and gallery foundation comes first; the 3D and AI layer builds on top of it.
The foundation
- Parent accounts with secure Supabase authentication
- Multiple child profiles under one parent account, with an Add Child flow
- Personal walls of 12 frames per child, with progress tracking per wall
- Camera and photo upload straight onto a wall
- Past Wall archive, plus Settings, Help and Log Out
The 3D and AI layer
- Unity WebGL runtime for immersive 3D virtual galleries
- Craft-photo-to-3D asset generation
- Style presets: Toy, Cartoon, Realistic and Low Poly
- Asset library with GLB export, sharing and embedding
Shown in the product concept above. Scope and release timing follow the client's roadmap.
A full feature set across four areas
Each area was engineered as its own module inside one Next.js application, so the 3D layer can grow without reworking accounts, profiles or storage underneath it.
Accounts & Privacy
- Parent Authentication (Supabase Auth)
- Multi-Child Profiles
- Row-Level Security
- Per-User Data Isolation
Galleries & Walls
- 12-Frame Personal Walls
- Frame Progress Tracking
- Past Wall Archive
- Camera & Photo Upload
3D & AI (In Development)
- Unity WebGL Runtime
- Craft-to-3D Generation
- Style Presets
- GLB Asset Export
Platform
- Cloud Storage & Database
- Responsive Tailwind UI
- Radix + shadcn/ui Components
- Vercel-Hosted Live Demo
The design system
Technologies In The Stack
8
Frames Per Wall
12
Leaderboards Or Social Comparison
0
Design System, Every Screen
1
Isolation enforced where the data lives
Row-level security
Supabase row-level security policies mean each account can only reach its own rows, enforced by the database rather than trusted to the UI.
Parent-managed accounts
Authentication is built around the parent, who manages each child’s profile through simple, transparent flows.
No social or competitive layer
There are no public feeds or comparison features, so the product’s surface area for privacy risk stays small.
The results so far
Clean, Distraction-Free UI
Kid-Safe
Row-Level Data Isolation
Secure
Ready For User Growth
Scalable
Foundation For Virtual Galleries
3D-Ready
I've had a great experience working with Hoop on the LetsPut project — professional, responsive, and patient throughout. Strong UI/UX, mobile, and Supabase skills, and they genuinely care about delivering a polished product.
P Rahnama — Client, LetsPut
The services behind this platform
Web Development
The Next.js, React and Supabase build.
ExploreProduct Design
The kid-first UI and design system.
ExploreUX Audit
Usability for young users and parents.
ExploreSaaS SEO
Search visibility for the product.
ExploreMobile App Development
A natural companion app extension.
ExploreGrowth Consulting
Ongoing product and traffic strategy.
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