About horu.world

Start with real problems. Make complexity simple.

horu.world is a creative product studio built around real problems — using products and AI to make complex things simple, with core features free forever.

Good products do not need a grand narrative.

They only need to begin with one person’s genuine frustration and turn a complex process into a simple, natural tool.

From idea to product, horu.world grows alongside you. Everything we do follows one principle: make complexity simple. We do not pile on features or chase trends. We start with everyday moments like budgeting and renting, then keep refining until the tool truly works.

The idea behind Horu is simple: combine years of project experience with observations from everyday life, then use AI to create a place where people can learn and use AI through practical products.

Simple is often the hardest work. It means thinking through every part of the experience — the color of a button, whether someone will click it, what they will remember, and whether the whole journey feels fluid.

That is why I lead with practice instead of theory: build the project first, then explain how it was made. Every project starts from a real everyday pain point, because a product must fit real life before people will use it.

Our first products are live now. You are welcome to try them.

Our products

Start with one specific, everyday problem.

Every product comes from real life — and returns to real life to prove its value.

01 LIVE

Crayon Ledger

Budgeting as easy as sending one line

A lightweight ledger with a hand-drawn Japanese feel. Track spending and savings, review monthly reports, set a budget, and use the same cloud-synced ledger on web and WeChat.

  • Log one line in Lark with a morning digest
  • See categories, monthly trends, and summaries at a glance
  • Link an existing account through seamless WeChat sign-in
Try Crayon Ledger
02 LIVE

Rent Worth

Know whether that home is truly worth renting

Renting is about more than price. Rent Worth brings commute, budget, neighborhood, and other factors together so you can see the trade-offs and make a more rational decision.

  • Keep every candidate in one place
  • Compare dimensions and risks together
  • Re-rank around commute, budget, and preferences
Try Rent Worth
What we stand for

Put long-term thinking into every small release.

01

Solve real problems

Begin with a specific frustration. Be problem-led, not idea-led.

02

Document product thinking

Share the decisions, methods, and practice behind each project — build and teach.

03

Free forever

Core features cost nothing, with no subscription games. Good tools should be within reach.

04

Keep improving

Real feedback enters the next iteration. Version numbers reflect real change.

14 complete practical lessons
Knowledge base

We do not just build products. We document the process.

The Crayon Ledger series runs from the reason for building a personal finance app through MVP loops, data structures, Lark integration, security foundations, version upgrades, and writing a product blog that search engines and LLMs can understand.

Every lesson comes from real mistakes and real fixes — not a theoretical exercise. More practical AI-building content is on the way.

Visit the knowledge base
This is horu.world

Start with real problems. Use products and AI to make complexity simple.

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