Helios — Solstice Studio

The problem

Your car talks. Nobody's listening.

64% of drivers don't understand their check engine light. They either panic and overpay at the shop, or ignore it until real damage occurs. Vehicle data is locked behind expensive dealer tools and $5,000 scan equipment — but a $15 Bluetooth adapter can read all of it.

Siri and Google Assistant weren't built for drivers. They can't read OBD codes, don't know your vehicle, and have no concept of driving context. Helios was built from the ground up for the road.

Capabilities

10 systems, one voice command away.

Conversational AI

Hybrid intent engine — local regex classification for instant response, backend Gemini AI with RAG for complex queries. 40-message context window.

Vehicle Diagnostics

Live OBD-II data, DTC scanning and clearing, freeze frame capture, VIN decode, and plain-English explanations with repair cost estimates.

Voice Interface

"Hey Helios" wake word. Whisper STT with hallucination filtering. ElevenLabs TTS with severity-calibrated tone adjustments.

App Control

Natural language app launching with 50+ alias table. 3-tier fallback resolution. Smart play disambiguation.

Media Control

Play, pause, skip, previous, volume — works with any MediaSession app. Spotify, YouTube Music, Apple Music, podcasts.

Navigation

Natural language to Google Maps or Waze. Contact address resolution. Nearby search for gas, food, anything.

Communication

Voice-initiated calls and texts. Compose SMS hands-free. Read incoming messages aloud while driving.

System Control

Toggle Bluetooth, WiFi, flashlight, DND, airplane mode. Set timers and alarms with natural language parsing.

Calendar

Query events, check availability, create appointments — all by voice. "Am I free at 3?" gets a real answer.

Pulled Over Mode

One voice command triggers recording, GPS capture, document display, and trusted contact notification. Safety-critical priority.

Personal safety

"Helios, I'm getting pulled over."

A single voice command transforms your phone into a personal safety system. This intent is checked first — before all other commands — because it's safety-critical and should never be accidentally swallowed by a lower-priority classification.

Front camera starts recording silently — HD video with audio, no visible camera UI, no record button, no viewfinder.
GPS location is captured and reverse-geocoded to a street address.
Trusted contacts are notified via SMS: "[Name] has been pulled over at [location]. They are safe — Helios is recording."
Document viewer opens — a clean, officer-facing carousel showing insurance, registration, and license. Neutral colors, no branding, no recording indicators.
After the stop — recording continues for 60 seconds as a buffer. Follow-up SMS sent. Video saved to encrypted private storage and queued for cloud upload over pinned HTTPS.

The officer sees a professional document viewer. Nothing else. No indication of recording. The notification reads "Documents Ready" — not "Recording in progress."

Privacy & security

Your data. Locked down.

Helios handles sensitive data — GPS coordinates, vehicle identifiers, traffic stop recordings, trusted contacts. Every layer is hardened so your information stays yours.

Encrypted Database

All local data — chat, vehicle snapshots, traffic stops, contacts, documents, memories — encrypted at rest with SQLCipher AES-256.

Hardware-Backed Keys

Per-device encryption passphrase generated via SecureRandom and stored in Android Keystore-backed EncryptedSharedPreferences (AES256-GCM). Never leaves the hardware.

Certificate Pinning

SHA-256 pinned connections to the Solstice backend — both at the Android network security layer and OkHttp transport layer. MITM-resistant by design.

Sandboxed Recordings

Pulled Over Mode videos saved to app-private storage — invisible to other apps, excluded from gallery, excluded from cloud backup.

Clean Logs

No PII in debug output. GPS coordinates, VINs, contact names, stop IDs, and device addresses are stripped from all Logcat statements.

Data Retention

Automatic TTL cleanup — vehicle snapshots: 7 days, learned locations: 90 days, traffic stops: 90 days, user memories: 180 days. Home/work locations and safety contacts are preserved.

The forensic chain for Pulled Over Mode is preserved in the encrypted database and backend socket events — timestamped GPS, video metadata, contact notifications, and stop duration. Stripping Logcat doesn't touch the evidence trail.

Personality

Calm airline pilot meets car-savvy dad.

Helios isn't robotic. He's warm, confident, and occasionally funny. He responds using severity-calibrated tone — Routine, Advisory, Warning, Critical — because driving context demands clarity, not walls of text.

Ask him "what's wrong with my car?" — not "initiate diagnostic scan." He maintains a 40-message conversation history, so you can say "tell me more about that" and he knows what "that" refers to.

In practice

Helios in the real world.

Check Engine Light

Driver: "Helios, my check engine light just came on."

Helios: "Let me take a look... Got 2 codes. P0455 — that's a large evaporative emission leak. Usually means your gas cap is loose or cracked. And P0442 — small evap leak, same system. Try tightening your gas cap and driving for a day. If the light stays on, we might be looking at a purge valve. I'd estimate $150-300 at a shop if it's not just the cap."

Driver: "Should I be worried?"

Helios: "Not really. These are emissions codes, not engine damage. Your car runs fine with them — it's just not sealing the fuel system properly. No urgency, but don't ignore it forever."

OBD-II scan (Mode 03) → RAG lookup across 3,000+ DTCs → plain-English explanation with repair estimates → contextual follow-up

Used Car Buyer

Driver: "I just bought this car used and I'm nervous. Can you check everything?"

Helios: "Let's see what we're working with... Good news: no active codes and the check engine light is off. Coolant temp is normal, voltage is 14.1 which means the alternator is charging fine. Distance since codes were last cleared is 2,340 miles — so either the previous owner cleared them recently or the car's been running clean."

Full sensor scan + contextual interpretation. Notices "2,340 miles since DTC clear" is relevant for a used car buyer.

Morning Commute

Driver: "What's on my calendar today?"

Helios: "You've got 3 things. Team standup at 9:30, lunch with Mike at noon, and dentist at 4."

Driver: "Text Mike I might be 10 minutes late."

Helios: "Message sent."

Driver: "Navigate to the office. Play my morning playlist."

Helios: "Routing you there now — about 22 minutes. Nice, throwing it on."

Four intent types (CALENDAR → COMMUNICATION → NAVIGATION → MEDIA_CONTROL) handled seamlessly by voice. Phone never touched.

Vehicle portal

Everything at a glance.

Swipe right from the chat screen. Live data from your vehicle organized into swipeable categories with real-time graphs, sparklines, and historical trends.

Vehicle Info

VIN, year, make, model, engine, transmission, drive type

Error Codes

Active DTCs with severity indicators

Engine

RPM, load, throttle, timing advance

Fuel Economy

MPG (instant + average), fuel level, pressure, trim, MAF

Electrical

Battery voltage, alternator status

Temperature

Coolant, intake air

Trip Stats

Distance, fuel used, average speed, max RPM

Weather

Conditions, wind, humidity, UV, driving impact

Gas Prices

Nearby stations with price comparison

Maintenance

Service schedule: Good → Due Soon → Overdue → Critical

Differentiation

Not a wrapper. Not an assistant. A copilot.

Feature	Helios	Google / Siri	Dealer Apps
OBD-II diagnostics	Yes	No	Own brand only
DTC translation (plain English)	Yes	No	Basic
Works with any car (1996+)	Yes	N/A	No
Safety recording mode	Yes	No	No
Conversational AI with vehicle context	Yes	No	No
Real-time dashboard	Yes	No	Own brand only
No subscription required	Yes	Yes	Often paid