Services &
Modular Add-Ons.
Every system is hand-crafted with modern architectural rigor. Browse all 10 core disciplines below. Click Show Add-Ons on any service to reveal its strictly tailored modular upgrades and instant pricing.
Cloud Restaurant & Retail POS + Auto-Token Kit
Waiters take orders on their own phones or tablets. The kitchen terminal updates in <50ms, and tokens automatically cut on standard ESC/POS thermal printers. No physical wiring team or expensive local installers needed — we provide pre-configured cloud software and a foolproof 5-minute self-setup guide.
Native Android Apps (Kotlin & Jetpack Compose)
When you need serious Android performance, clunky cross-platform wrappers just don’t cut it. We write native Android apps in pure Kotlin using modern Jetpack Compose. Your app opens instantly, stays buttery-smooth at 60fps, and doesn’t chew through user batteries. We set up reliable background workers with WorkManager, offline Room databases so your app never crashes offline, and guide you through Google Play Store approval, including the 14-day closed testing gauntlet.
Cross-Platform Mobile Apps (Flutter & Dart)
Want to launch on both Apple App Store and Google Play without paying for two separate engineering teams? We build cross-platform mobile apps in Flutter and Dart that look, feel, and respond like true native software. No laggy webviews, no clunky compromises. We build offline-first SQLite local caching, push notification infrastructure, and smooth custom widgets so your MVP ships fast and scales cleanly.
Custom Web Apps & Brand Hubs
Hand-crafted web applications and high-conversion marketing engines built with React, Next.js, and TypeScript. No template bloat, no unneeded dependencies. Fully accessible, SEO-structured from day one, and tuned to score 95+ on Google PageSpeed.
Headless E-Commerce & Storefronts
High-velocity commerce engines combining Next.js with PostgreSQL, Stripe, and PayPal. Supports credit cards, Apple Pay, Google Pay, and international checkout with zero third-party platform percentage cuts.
Cloud Restaurant & Retail POS + Auto-Token Kit
A practical, 100% cloud-based restaurant software suite that eliminates expensive legacy POS boxes. Waiters take orders from table-side on any mobile browser (PWA). Orders sync instantly (<50ms) to a kitchen display tablet and fire automatic print commands to standard ESC/POS thermal printers over local WiFi/LAN. Client purchases an affordable $45 standard printer from Amazon/Daraz via our pre-tested link; Rymthos delivers the pre-configured software, print bridge, and 5-minute setup guide.
Autonomous AI Voice Agents & Phone Receptionists
Never miss a revenue-generating phone lead again. We engineer low-latency conversational voice agents that answer your business phone line, handle inquiries, negotiate booking slots, and collect customer details with human-grade clarity. Configured directly on your own Twilio/Vapi account (you fund your own carrier balance at cost with zero developer markup). Rymthos builds the conversation engine, calendar sync webhooks, and strict guardrails.
Private Enterprise AI Knowledge Hub & Secure RAG
Stop employees from wasting hours searching internal folders and chat histories. We deploy private retrieval-augmented generation (RAG) engines powered by Supabase pgvector and Claude 3.5. Queries are answered with exact document page citations. With strict PostgreSQL Row-Level Security, an intern will never receive answers derived from confidential executive files.
Intelligent Document Processing (IDP) & OCR Pipelines
Manual data entry is slow and error-prone. We build automated document ingestion pipelines using multimodal vision AI (Claude 3.5 Sonnet Vision & Gemini 2.0 Flash) with strict Zod/Pydantic validation. Parse complex tables, handwriting, and non-standard invoices directly into clean PostgreSQL records or ERP platforms.
Autonomous Agentic Workflows & CRM Orchestration
Replace brittle Zapier connections with high-performance, self-hosted n8n or custom agentic architectures. Whenever a lead arrives, autonomous agents research the prospect’s domain, detect their business model, draft hyper-personalized proposals, and notify your sales team with 1-click approve buttons.
Full-Stack SaaS & Scalable Backend Architectures
Backend infrastructure engineered for massive concurrency and fault tolerance. We design relational schemas, enforce database constraints, implement Redis semantic caching, and configure connection pooling (PgBouncer) so your application never buckles during viral traffic spikes.
Enterprise Security Hardening & Zero-Downtime Migration
Burned by unreliable dev agencies or inheriting vulnerable legacy code? We perform adversarial local static application security testing (SAST), purge exposed API secrets, patch SQL injection/XSS flaws, and migrate your database to modern, lightning-fast Next.js architecture with zero SEO loss.