Small software, no strings attached.
Browser tools that run without an account, and Android apps you buy once. No subscriptions, no advertising, nothing to cancel later.
TV Remote
Android · US$4.99, once
Your phone becomes the remote for a television or streaming box running Android TV or Google TV — including the part a plastic remote is worst at. Type a film title on your phone keyboard and the letters land on the TV as you type, instead of twenty D-pad presses per word.
- No ads and no subscription. Competing remotes charge by the week.
- No account. The app has no server behind it and collects nothing.
- Works over Wi-Fi, using the remote-control protocol those televisions already speak.
GolfSpeed
Android · US$9.99, once
Film your driver swing and the app estimates club head speed from the video, then the ball speed and carry that speed is good for. No launch monitor, no sensor on the club — it reads the swing out of the frames themselves.
- Everything runs on the phone. The app makes no network requests at all.
- Try it free first. The browser version analyses two swings a day, no sign-up.
- An estimate, and it says so. Good for tracking your own trend, not for replacing radar.
Free browser tools
These run in the browser and need no installation, no login and no payment.
GolfSpeed in the browser
The same head speed analysis the Android app does, on two swings a day, with no sign-up and nothing to install.
Golf Swing Trimmer
Cut a long recording down to the swing itself before you analyse it. Manual trimming is unlimited.
Rubik's Cube LLM Solver
An interactive 3D cube, 2x2 to 5x5, solved live by a language model you pick: Claude, NVIDIA NIM, or your own local Ollama.
Motion to Anim
Turn ordinary video into motion-capture animation data, converted in the browser.
Writing
Notes from building the things above: the protocols that were not documented, the bugs that took a week, and what was tried and abandoned.