AI-assisted engineering
Features, refactors and data-collection scripts are built in an agentic workflow with Claude Code; every change is type-checked and verified in a live preview.
GUIDU is live on Google Play
Engineering the Architecture of Autonomous AI Interactions.
LikelightAi builds context-aware applications that turn where you are into what you need to know — no search box, no typing, no tour guide required.
- Narrated attractions
- 856
- Cities covered
- 14
- Restaurants
- 6,700+
- Languages
- 4
- Countries
- KR · JP
Why we exist
The question a tour guide can't answer in time.
The idea started on a highway in Norway. Our founder spotted a strange facility covered in antennas — but the tour guide was busy explaining something else, and the answer ended up coming from a hurried web search.
Every traveler has these moments: a building, a gate, a street you pass that nobody explains. GUIDU fills that gap. It notices where you are and tells you the story of the place, in your language, the moment you arrive.
LikelightAi's goal is to make that experience work anywhere in the world — accurate, offline-capable, and free to start.
Our Flagship Platform: GUIDU
A GPS-triggered audio travel guide for Korea and Japan. Try the live web version below — it is the same product our Android users run.
Narration on arrival
Walk within range of a landmark and its story plays automatically. Tap any sentence to replay from there.
One-minute or deep dive
Every attraction has a one-minute highlight; Korean sites add a three-minute deep dive.
Food near every sight
6,700+ restaurants, one tap away in Google Maps, Naver Map or KakaoMap.
● Live Demo
Itineraries in one tap
Pick days and themes; GUIDU groups nearby sights, slots in meals and avoids closing days — computed instantly on the device.
Built for the road
Download a region and narration, maps and photos keep working without roaming data.
Help when it matters
Essential local phrases with pronunciation, plus emergency numbers for the country you're in.
Live Demo Mode: browse attractions, read the narration and explore restaurants right here. Location-triggered auto-play runs in the Android app.
Where GUIDU works today
Each city is researched against official city and tourism-board sources before it ships, then expanded in batches.
South Korea · 10 cities
Seoul · Busan · Daegu · Incheon · Gyeongju · Jeju · Gimhae · Yangsan · Geochang · Bucheon
Japan · 4 cities
Tokyo · Kyoto · Osaka · Nara
Technology
Built with Claude
GUIDU is designed, written, refactored and tested with Claude Code, Anthropic's agentic coding tool — from architecture decisions to performance work and data pipelines. That workflow is how a one-person team ships a multilingual, offline-first product across two countries.
GPS geofencing
Tight triggers for single landmarks, polygon boundaries for palaces and large complexes, and entry notifications even in the background.
Structured narration
An eight-slot template — hook, history, highlights, honest notes, local tips, practical info — keeps every attraction consistent in four languages.
Offline-first
Content ships with the app into on-device SQLite; downloaded regions add map tiles and photos to the local cache.
On-device speech
Narration is synthesized by the phone's own text-to-speech — zero audio files to download and no speech server to run.
Private by architecture
No account, no user database. Location is processed on the device, and ads are requested as non-personalized.
Planned · Next with the Claude API
Bringing Claude into the product itself
Today Claude builds GUIDU. Next, we plan to put the Claude API to work inside the product and the pipeline behind it. These features are in planning and not yet available in the app.
Ask GUIDU
Standing in front of a landmark, ask a follow-up question in your own language — "Why is the roof curved?" "Is this place worth it with kids?" — and get an answer from Claude grounded in GUIDU's verified narration for that place. Only the question and the place you're viewing would be sent; the core guide keeps working offline.
Claude-powered content pipeline
Drafting, translating and fact-checking narration from verified sources with the Claude API — starting with three-minute narration for 474 Japanese attractions in four languages — with a human approving every text before release.
How Ask GUIDU would work Concept illustration — not yet available
Gyeongbokgung Palace
Geunjeongjeon Hall
▶ Narration · The throne hall where Joseon kings received officials…
Why are there little statues on the roof?
They're japsang — guardian figures set on palace roof ridges to ward off evil spirits. You'll see them on the main halls across the palace.
Source: GUIDU narration · 🔊 Read aloud
Ask about this place… 🎙
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1 · On your phone
You ask
Type or speak a question about the place on screen.
-
2 · GUIDU gateway
Context is added
A small server attaches that place's verified narration and facts, keeps the API key off the device and limits usage.
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3 · Claude API
Grounded answer
Claude answers from the provided facts in your language — and says so when they don't cover the question.
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4 · Back in the app
Shown and spoken
The answer appears with its source and is read aloud by on-device speech.
Offline path stays the same: GPS → on-device narration → on-device speech. Ask GUIDU is an online extra; the guide never depends on it.
Business
A free product with a clear path to revenue
Live today
Free download, ad-supported
A single non-personalized banner — no interstitials, no pop-ups during narration.
Ad-free upgrade
In-app purchase as a short trip pass or a lifetime option, built for how long people actually travel.
In development
Retail partner placements
Duty-free and souvenir shops surface signature items to travelers who opt in nearby — always labeled as ads.
Tourism board partnerships
City-level premium content and coverage for destinations that want to reach international visitors.
Roadmap
Shipped
Korea launch
10 cities, four languages, Android.
Shipped
Japan expansion
Tokyo, Kyoto, Osaka and Nara.
Next
Ask GUIDU
In-app Q&A powered by the Claude API.
Next
Downloadable region packs
Add cities without growing the app.
Next
Partners & iOS
Partner program and an iOS release.
How we work
Verified facts only
Content is checked against official and public sources. Rumors and unconfirmed claims are excluded — especially around K-culture locations.
Honest guidance
Narration includes the inconvenient parts too: crowded hours, closing days, what's worth skipping.
Respect for travelers
Minimal ads, clear labels, no account required and no tracking SDKs for product analytics.
Work with LikelightAi
We welcome conversations with tourism boards, retail partners and investors who want to reach international travelers in Korea and Japan.