Custom Software & App Development

Let's Build Something Together

Tell us what you need — a restaurant order page, a business automation tool, an invoice generator, or an AI-powered app. We design, build, and deploy it on AWS.

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In a hurry? Email us directly at info@ondevtra.com

What We Build
  • Restaurant & Shop Order Pages — One-page menu sites, email-on-order, QR code ready, zero commission
  • Custom Web Apps — Dashboards, portals, internal tools built to your exact workflow
  • Business Automation — Invoice generators, PDF processors, reporting systems
  • iOS App Development — AI-powered native iPhone and iPad apps, App Store ready
  • Text to Speech & Speech to Text — OpenAI Whisper/TTS, Azure Speech, ElevenLabs
  • Vision & Document Analysis — GPT-4o Vision, Azure Computer Vision, PDF extraction
  • AI API Integration — OpenAI, Azure AI, Claude API, any AI service
  • Custom Invoice Systems — Multi-currency invoicing with bank PDF extraction
  • AWS Deployment — EC2, S3, CloudFront, Lambda, RDS — fully managed
  • Enquiry & Lead Forms — Simple landing pages that capture and email leads instantly
Built: Custom Invoice Generator
Automated Multi-Currency Invoicing

A freelancer needed to automate dual-currency invoicing across Stripe India (INR) and Apple Inc (USD). We built a Flask web app that reads bank PDFs, extracts amounts, and generates compliant invoices with sequential numbering.

  • Reads bank PDF statements, extracts amounts automatically
  • Generates invoices with shared sequential numbering
  • INR ↔ USD exchange rates from remittance PDFs
  • Monthly summary reports for tax filing

Stack: Python, Flask, ReportLab, pypdf · AWS EC2 · Shipped in 2 days

Built: Restaurant Menu & Order Page
Phone Orders → Zero Commission QR Menu

A local restaurant taking orders only by phone. We built a single mobile-friendly page — customers scan a QR code, browse the menu, tap items, and place orders. The owner gets a formatted email with every order instantly.

  • Interactive menu with categories, items, prices, live cart
  • Order email sent to owner with full item list & total
  • Mobile-first, any phone, QR code ready
  • Zero platform commission, minimal hosting cost

Stack: HTML, CSS, JS, Formspree · Built in 5 days. Works for restaurants, grocery, bakeries, catering.

Built: AI Voice Generator (iOS)
24,000+ Users on the App Store

A production iOS app converting text to natural-sounding speech with multi-voice, multi-language support and one-tap audio export — built in Swift/SwiftUI.

  • Native Swift / SwiftUI, optimised for iPhone & iPad
  • Multiple AI voices, global language support
  • Speed, pitch, and pause controls
  • MP3/WAV export for videos, reels, and podcasts

Stack: Swift, SwiftUI, AVFoundation · Live on the App Store

Built: Real-Time Translation App (iOS)
Low-Latency Live Speech Translation

A one-way translation app for live conversations — detects spoken language and outputs translated speech in near real-time, useful for travellers, meetings, and customer support.

  • Live speech-to-text with language auto-detection
  • Real-time translation across 30+ language pairs
  • Text-to-speech playback of translated output
  • Works offline for common language pairs

Stack: Swift, AVSpeechRecognizer, Translation framework · Live on the App Store

Common Questions
Simple automation tools and order pages: 1–2 weeks. Mid-size web apps: 4–8 weeks. Larger systems with AI integrations: 2–3 months. We'll give a realistic estimate after reviewing your brief.

Prefer to email directly?

info@ondevtra.com