Apps

Flutter, shipped.

A dictionary, an audio pipeline, and a field tool that works with no signal.

Captured from the apps running for real — the bundled dictionary, live podcast feeds and a survey project on iPad.

01 từ điển

từ điển

Vietnamese–English dictionary · iOS & Android

An offline dictionary — it ships encrypted inside the app and updates over the air. Search ignores tones, and any word can be looked up in a 793,000-sentence news corpus, translated and speakable.

Flutter
Dart
SQLite
Encrypted DB + OTA
Go API
LLM
TTS
Speech-to-text

Dictionary search results for hoc, showing Vietnamese and English matches — Tone-insensitive search, both directions at once.

Word detail for hoc with numbered senses and examples — Numbered senses, examples with the headword picked out, tap to hear it.

Corpus examples grouped by topic with a translated sentence — Real usage from a 793k-sentence news corpus, by topic, translated.

Saved bookmarks list — Bookmarks, searchable and exportable.

02 Podcasto

Podcasto

Podcast client · Android

Search the Podcast Index, subscribe, and get one merged episode list across every subscription. Background playback with variable speed, offline downloads and output to HEOS speakers.

Flutter
Dart
just_audio
audio_service
SQLite
Podcast Index API
RSS
HEOS

Merged episode list across subscriptions with dates and durations — One episode list across every subscription.

Subscribed podcasts shown as cover art cards — Subscriptions, kept locally.

Episode player mid-playback with seek bar and speed control — Playing: seek, ±10s, variable speed, background audio.

03 Orizons

Orizons

Building surveys · iPad

A surveyor walks the site and records zones, equipment, photos and energy data straight onto the floor plan — working offline, then syncing.

orizons.io Product site

Flutter
Dart
Firebase Auth
Offline mode
SVG floor plans
Google Maps
Camera
REST API