Navigation when GPS dies. Sound that never repeats. A pocket physics lab. Acoustic diagnostics. All computed on silicon — no cloud, no tracking, no VC pitch deck.
Dẫn đường khi GPS chết. Âm thanh không lặp. Lab vật lý bỏ túi. Chẩn đoán âm học. Tính toán trên chip — không cloud, không theo dõi, không pitch deck gọi vốn.
Showcase
Sản phẩm
Scroll — each app is a different physics problem we couldn't ignore.
Cuộn — mỗi app là một bài toán vật lý team không thể bỏ qua.
Save everything. Find by meaning.
Semantic search · share sheet · Spaces
Save links, photos, voice notes and PDFs via share sheet. AI cleans, tags and organizes into Spaces. Search everything by meaning.
GPS dies. We don't.
IMU · baro · mag · dead reckoning
Save your parking spot and walk straight back — even in deep underground garages where GPS dies. Motion, compass and barometer fusion. Widgets, Live Activity, parking reminders.
Sleep noise that never loops
48 kHz · real-time synth · zero loops
Never-repeating ambient for sleep, focus and recovery. Real-time on-device synthesis — no streaming, no account.
Pocket physics lab
100+ sensors · Euler/RK sims · EN/VI
Your phone as a pocket physics lab. 100+ live sensor instruments, interactive simulations, calculators and guided experiments. EN + VI.
Listen like an engineer
A-weighted · FFT · baseline diff
Privacy-first acoustic toolkit: A-weighted noise meter, machine fault diagnosis vs baseline, PDF/CSV reports — all on-device.
Science & engineering
Khoa học & kỹ thuật
Seventeen disciplines we actually use — not buzzwords on a landing page.
Mười bảy lĩnh vực team thực sự dùng — không phải buzzword cho landing page.
Dead reckoning, step detection, attitude from accelerometer + gyroscope — how Wheria traces your walk indoors.
Pressure → height: parking-garage floor estimation when GPS is useless.
Earth field + distortion handling for heading when you walk back to your car.
A-weighting, LAeq, FFT, baseline comparison — Sonarish and Estua built on wave physics.
Real-time synthesis, filters, envelopes — generative ambient in Estua without looping tracks.
Sensor fusion, Kalman-style filtering, least squares — combining noisy measurements into one answer.
Mag field, light, proximity — Phyzix exposes 100+ phone instruments as physics lab tools.
No cloud required for core physics — privacy, latency and offline use by design.
Rotate sensor vectors between device, world and navigation frames — avoid gimbal lock in attitude tracking.
Choose sample rates and FFT sizes so spectra and audio pipelines alias responsibly, not accidentally.
Log hearing, masking, and calm UI timing — why Estua modulates slowly and Sonarish shows LAeq.
Bearings, fans and panels add predictable spectral lines — baseline comparison in Sonarish.
Euler and RK integrators for projectile, pendulum and wave demos inside Phyzix.
Lux, exposure, color channels — phone light sensors as teachable instruments.
Confidence in noisy measurements — when to show error bars instead of fake precision.
Full-text and semantic indexing for links, notes and files — Stashio organizes what you save.
Fixed deadlines on audio and sensor threads — no malloc, no locks, no excuses.
Operating principles
Nguyên tắc vận hành
Core physics runs where the sensors live — in your pocket.
No ad SDKs. No analytics loop. We sell tools, not attention.
iOS and Android ship feature-parity — friends use both, we refuse to pick sides.
Black, white, data first. Color is for signal, not decoration.
Blog
Compass drift, FFT windows, parking-garage math — the parts READMEs skip.
La bàn trôi, cửa sổ FFT, toán hầm xe — phần README không viết.
We left five phones logging their gyroscopes overnight and used Allan deviation to work out how many minutes of heading Wheria can borrow between compass corrections.
Sonarish's experimental breathing monitor drives the speaker at 19 kHz, listens on the mic, and reads 118 µm of chest motion out of the phase of the echo.
Sentence embeddings, int8 vectors and a brute-force cosine scan let Stashio search your saved links by meaning entirely on the phone.
A tech-stack tour of the browser demos on the lab page, from AnalyserNode fine print to hand-shifted spectrogram pixels, built with no framework and no trackers.
Get in touch
Liên hệ
Collaborations, physics questions, or "why does my compass do that?"
Hợp tác, hỏi vật lý, hoặc "sao la bàn mình điên thế?"