iOS 27 & watchOS 27
100% On-Device
Live Activities
Two focused tools · One for the train, one for the car

Two dedicated apps.
Zero location tracking.

Onism plans your Metro-North & subway journey door-to-door. OnismOBD turns engine telemetry and diagnostics into clear plain English. Both run 100% privately on your iPhone.

Try Live Sandbox
Door-to-Door CommuteMetro-North & Subway synced
3D Replay & TelemetryPlain-English ECU diagnostics
Apple Watch CompanionWrist glance & haptic cues
100% On-Device AI0 tracking · 0 cloud egress
Harlem Line · Express
9:12 PM
Brewster ➔ GCTOn Time
14
MINUTESBoarding on Track 2
Grand Central Transfer Slack+7 min
Safely absorbs subway headway variance
Brewster9:12 PM · Departed On Time
White Plains9:52 PM · Track 1 (Express Pass)
Harlem-125th St10:14 PM · Dynamic Walk
Grand Central Terminal10:24 PM · Track 2 (Upper Level)
OBD-II BLE · 1Hz ECU
194°F Coolant
3D Trip Replay62 MPH
RPM
2,450RPM
Vehicle Speed
62mph
500m Home/Work Redaction Active
Slow Snail Connected Vehicle Telemetry
Slow Snail
SPEED62 MPH
ENGINE2,450 RPM
COOLANT194°F ECT
FUEL TRIM+1.2% STFT
Pick your routine · See the architecture in action

Two focused apps.
One private engine.

Explore how Onism replaces fragile timetables and cryptic OBD fault codes with deterministic, on-device intelligence.

onism-transit-engine · live gtfs-rt sync
100% On-Device
Onism · Commute App

Metro-North in. Grand Central across. Subway onward.

Plans your entire commute as one continuous journey with dynamic walking buffers and GTFS-RT headway syncing.

Dynamic Transfer Slack

Calculates exact walking buffers from train doors to subway turnstiles.

Monotonic Ratchet Defense

Locks recommendations once committed to a platform to prevent thrash.

Apple Watch Companion

Tactile wrist glances and haptic cues synced live with your iPhone.

commute_journey.json
Origin:White Plains (Harlem Express)
Departure:8:12 AM · Track 1 (On Time)
GCT Arrival:8:47 AM · Upper Concourse
Transfer Slack:+8 min buffer (Guaranteed)
Subway Handoff:4 / 5 Express · Wall St
Boarding Car:Car 4 (Direct to exit stairs)
THE COMMUTE APP Onism · iPhone & Apple Watch

Metro-North in.
Subway onward.

Plans your whole commute as one connected journey: driving to your station, catching your train, navigating Grand Central, and transferring to the subway onward.

Live Rail Studio
Grand Central Connection SlackSimulate rail delays to see how Onism protects your subway transfer
+8m GCT Transfer Slack
0m On Time+3m+6m Delay+9m+12m Ratchet Reroute
Metro-North Departure8:12 AM ExpressHarlem Line · Track 1
On schedule
Subway Handoff4 / 5 ExpressWall St / Fulton Center

Sub-Second GTFS-RT Engine

Real-time vehicle tracking with advance Grand Central track notifications ~20m before departure.

Stay Dry Route in Bad Weather

Dedicated route option that minimizes outdoor walking and prioritizes covered concourses when it rains or snows.

Parked Station Return Lock

1-tap pin locks return trips to end right where you parked your car in the morning, eliminating suburban backtracking.

Zero Egress Privacy Core

Multi-objective route scoring, learned preferences, and 60-day local logs stay locked on your device.

Want to explore live GTFS-RT headways and elevator buffers?Test all Metro-North branches and transfer slack in the sandbox.
Launch Commute Sandbox
Harlem Line · Active8:12 AM ExpressTrack 1 · On schedule
Onism Pilot · Live94% ConfidenceTransfer protected
Live ConcourseGrand Central Buffer+8m slack · 4/5 Express
Delay Defense · ActiveAuto-Reroute ReadySubway 4/5/6 synced
Track 1 · 8:12 AM Express
Onism live commute journey overview showing Harlem line departure, subway connection, and real-time route health
Harlem Line8:12 AM ExpressTrack 1 · On time
Onism Pilot94% ConfidenceTransfer protected
ConcourseGrand Central+8m transfer slack
Delay DefenseAuto-RerouteSubway 4/5/6 sync
THE CAR APP OnismOBD · iPhone

Your car's health & telemetry,
in plain English.

Continuous health monitoring, mechanical diagnostic decoding, and privacy-first trip telemetry — powered directly on-device with optional wireless OBD-II or standalone phone GPS.

Live Vehicle Studio
Vehicle:
Select Fault Code:
P0420Catalyst System Efficiency Below Threshold (Bank 1)
Safe to drive

The catalytic converter is not cleaning exhaust gases as efficiently as specified. The engine will run normally, but emissions are slightly elevated.

Safe to drive and finish your commute. Schedule an exhaust and O2 sensor inspection within 2 weeks.

Ask My Car Linked Drives

Natural-language Q&A runs directly on the Apple Neural Engine. Answers cite real sensor timestamps with interactive drive cards that open full trip graphs and speed curves.

Private SQLite & iCloud Sync

All drive records and diagnostics are encrypted on-device with seamless private iCloud sync, Home/Lock Screen widgets, and air-gapped PDF mechanic reports.

Adapter-Optional Dual Mode

Track drives with phone GPS alone and zero Bluetooth battery draw, or plug in any standard BLE OBD-II scanner for live boost, coolant, and diagnostic codes.

3D Replay & Demo Kinematics

Silky 120fps ProMotion scrubbing with simulated pitch, roll, and compass heading, plus automatic 500-meter privacy trimming around home and work.

Want to explore live ECU telemetry and fault clearing?Test the full diagnostic console and 3D route scrubber in the sandbox.
Launch OBD Simulator
ECU Diagnostics · LiveP0420 DecodedSafe to drive · No limp mode
Trip Intelligence22.7 MPG Economy84.0 mi · 0 Fault codes
Live Sensors · 10HzPowertrain Stream1,582 RPM · 64.6 MPH
Ask My Car · AIPlain EnglishOn-device neural triage
P0420 · Safe to drive
OnismOBD live vehicle dashboard displaying speed, RPM gauge, inclinometer pitch and roll, heading, and live sensor activity
ECU DiagnosticsP0420 DecodedSafe to drive
Trip Economy22.7 MPG Avg84.0 mi · 0 DTCs
Live Sensors10Hz Stream1,582 RPM · 65 MPH
Ask My CarPlain EnglishInstant diagnosis
GET THE APPS Available Experiences

One idea.
Two focused tools.

Get early access notifications and App Store release updates with zero tracking and no account required.

Version 2.5.52
Commute

Onism

Door-to-door transit intelligence with Stay Dry routing, advance Grand Central track notifications, and parked station return locking.

v2.5.52 · iOS 27 & watchOS 27 Companion · iPhone & Apple WatchGet Release Updates
Version 1.3.4
Car

OnismOBD

Full 3D drive replays, live engine telemetry, and Ask My Car linked drives with adapter-optional phone GPS mode.

v1.3.4 · iOS 27 · Adapter-Optional (BLE or Standalone GPS)Get Release Updates