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Linkos · Using AI to turn needs into reality

Can a phone test your hearing?Hearing TestIt shows the shape and trend of your hearing curve. The absolute numbers aren't accurate.Is the Tokyo Metro 24-hour pass worth buying?Japan Trip PlannerIt works it out from your itinerary, and says “don't buy it” when you won't use it up.Does overtime logged after the fact still count?Arbitration EvidenceEvery entry is marked as recorded on the spot or added later.Why does 3 + 5 × 2 come out as 16, not 13?ClarSumOn purpose: it works left to right and shows every step on screen.Will the AI make my résumé look better?UjobIt explains your real experience clearly. It never makes anything up.Does my data leave my phone?ClarSumNo. Text and speech recognition both run on the device.

Linkos · 灵可司

Using AI to turn needs into reality

So life and work get a little easier.

Scenarios

Health

1 available

Keeping an eye on your own health

Travel

1 available

For when you're out and about

Work

2 available · 1 in development

For your job, to take some of the load off

Job hunting

1 available

Platforms and tools that help you find a job

Everyday life

1 available

Small tools that make daily life easier

Investing

1 in development

Quant trading and investing tools

  • HHeliosA quant trading system for US stocks and ETFsIn development

AI companions

2 in development

Personal assistants and companion AIs

  • Cat CompanionAn AI desktop pet for the Mac: reminds you to drink water and stretch, and can help with workIn development
  • LunaAn AI desktop assistant that runs on your own computer and grows with youIn development

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My cartoon avatar: an anthropomorphic ragdoll cat in headphones and teal goggles, wearing a teal jacket and a small backpack, holding a phone
My cartoon avatar, based on our ragdoll cat at home

About me

Hi, I'm Byron

I'm 39 and still clocking in, with a computer science degree from one of China's top universities. I've been a product director, run a business unit, and started a company of my own. These days I write the code myself as an indie developer, and I've shipped several apps to the App Store.

Why I build these apps

Take Hearing Test. A family member wears earphones for hours at a time, usually turned up loud, and lately felt their hearing wasn't what it used to be. When I was in the US, my own iPhone with AirPods Pro 3 could run a hearing test. The iPhone my family member uses in China doesn't have that feature.

So I built one. You can test at home whenever you like, watch how things change over time, and go to a hospital early if something starts to look off. Hospital appointments mean queues, and going on a weekday can mean unpaid leave. Checking at home first can save you a lot of that.

What I'm working on

  • The apps that are already live are on the scenario boards above
  • AgentFleet Pro: in development
  • Helios: a quant trading system for US stocks and ETFs, in development
  • Cat Companion and Luna: an AI desktop pet for the Mac, and an AI desktop assistant that grows with you. Both in development

Where to find me

I follow tech and current affairs, and share my thoughts on Xiaohongshu and X. I'm no expert, just an ordinary person finding my way one step at a time.

— Byron