4dc App Studio

Proprietary software and agentic apps.

Alongside bespoke client engineering sprints, our team designs, builds, and supports standalone applications. From offline-first consumer tools to autonomous multi-agent pipelines, every application embodies our commitment to data sovereignty, clean architecture, and reliable performance.

Fitness & strength training Beta

GainLogic

The gym companion you actually own: free, private, and easy to use.

A simple, reliable gym companion with zero subscriptions and zero data tracking. Plan and adapt your workouts using your existing AI accounts or direct API keys, with every rep, weight, and routine kept strictly on your phone.

Zero subscriptions and zero tracking: Free forever with no subscriptions, paywalls, or ads. Your training logs, body measurements, and workout history never leave your phone.

Bring your own AI companion: Connect your existing AI subscriptions through a quick clipboard chat bridge, or plug in your own API keys (OpenAI, Anthropic, Google Gemini, OpenRouter) to generate and tweak routines on the fly.

Simple, distraction-free logging: Built for quick, effortless logging between sets. Works completely offline in basement gyms and dead zones with zero delay.

Flutter Dart SQLite

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Fashion & personal styling Beta

Drobely

Intelligent digital wardrobe curation, custom outfit creation, and peer clothing exchange.

A private digital wardrobe assistant that catalogues your clothes, builds and saves coordinated outfits, tracks wear metrics, and supports peer outfit sharing and clothes exchanges on request.

Instant garment digitisation: Snap a quick photo of any garment; automated on-device vision cleanly removes backgrounds and tags categories, fabrics, and colours.

Interactive outfit creation and canvas: Mix and match tops, bottoms, outerwear, and accessories on a visual canvas to create, save, and schedule complete looks for any occasion.

Contextual styling and wear analytics: Get smart outfit suggestions tailored to local weather forecasts while tracking rotation frequency and true cost-per-wear metrics.

Flutter Dart ADK Supabase

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Knowledge & reading Beta

LibMate

Private library companion: catalogue physical and e-books, track exact book locations, coordinate peer loans, and accelerate reading.

A comprehensive book management and accelerated reading platform. Catalogue physical bookshelves and digital e-books, map exact physical locations across your home, manage loans with peers, and read faster with an integrated RSVP speed reader.

Dual physical and digital cataloguing: Scan ISBN barcodes for instant physical book metadata or import e-books (EPUB, PDF) with automated cover and chapter extraction.

Precision location and shelf mapping: Tag physical books by room, bookcase, shelf level, or storage bin so you can locate any volume in seconds.

Peer lending ledger and loan tracking: Keep accurate records of books loaned to peers, track return deadlines, and discover titles available to borrow from friends.

Typescript SvelteKit ADK Supabase

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Culinary & lifestyle Beta

CookMate

Intelligent culinary management: recipe extraction from URLs, hands-free cooking assistant, meal scheduling, and smart grocery planning.

A private, distraction-free culinary assistant. Extract recipes instantly from any web link or enter them manually, plan balanced weekly meals, track pantry groceries with automated aisle grouping, and cook hands-free with an interactive kitchen assistant.

One-touch recipe extraction and authoring: Paste any web URL to instantly strip away clutter and extract clean recipes, or author and preserve your own custom dishes manually.

Interactive hands-free cooking assistant: Follow step-by-step kitchen instructions with voice navigation, dynamic ingredient scaling, and simultaneous timers tied to cooking stages.

Visual meal calendar and planner: Plan lunches and dinners across days or weeks with drag-and-drop scheduling, balanced dietary variety, and portion adjustments.

TypeScript Tailwind CSS SvelteKit PostgreSQL ADK

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Knowledge & document intelligence Beta

DocuForge

High-fidelity document intelligence: convert legacy ODF and technical PDFs into structured JSON or Markdown with free BYOK.

A high-precision document parser and conversion utility. Available as a free bring your own key (BYOK) application, DocuForge transforms legacy ODF files (.odt, .ods, .odp) and technical PDFs into strictly typed, machine-readable JSON schemas and clean Markdown.

Free BYOK architecture: Use the application completely free with your own AI API keys or local on-premise models, with zero software licensing or per-page subscription fees.

Comprehensive ODF and PDF conversion: Seamlessly parse legacy Open Document Format files (.odt, .ods, .odp) and complex scanned technical PDFs into machine-readable structures.

Structured JSON and clean Markdown: Generate strictly validated JSON schemas or clean GitHub-flavoured Markdown ready for vector databases, LLM ingestion, or archival databases.

Python IBM Docling Vanilla CSS, JS, HTML

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Enterprise AI & knowledge systems Beta

OptiChat

Enterprise domain-specialist RAG: private local LLMs, dual LoRA adaptation for jargon, and neuro-symbolic verification.

Build, deploy, and embed specialist conversational systems over your private document corpus using advanced RAG. Compatible with local LLMs, OptiChat supports dual LoRA adapters for domain jargon embeddings and output stylistic consistency, reinforced by neuro-symbolic validation for zero-hallucination precision.

Grounded domain RAG with embeddable widget: Ingest your proprietary document corpus and embed specialized chat interfaces directly into your enterprise portals and internal software workflows.

Air-gapped local LLM execution: Run completely air-gapped on your own hardware using Ollama, vLLM, or TensorRT-LLM with zero data leaving your private network.

Dual LoRA domain adaptation: Fine-tune dedicated LoRA adapters for both embeddings (mastering domain acronyms and jargon) and generation (enforcing style, structure, and tone).

Python ADK PyTorch FastEmbed

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Enterprise process automation In development

OpsTriage

Multi-agent incident triage and automated ticket routing.

An autonomous incident response system that correlates incoming alert noise, drafts diagnostic runbooks, and routes actionable tasks to engineers.

Autonomous log correlation: Clusters redundant telemetry spikes into single actionable incident briefs.

Deterministic git diff inspection: Cross-checks recent release commits to isolate offending pull requests in minutes.

Human-in-the-loop approvals: Proposes rollbacks or configuration toggles requiring single-click human confirmation.

Python LangGraph Docker Google Run PostgreSQL

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Bespoke Engineering

Need custom autonomous agents or deterministic software?

We design and engineer bespoke agentic workflows, private on-premise AI deployments, and tailor-made web and mobile applications directly to your enterprise specifications and data boundaries.

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