Sectional AI

For airline pilots — iPhone · iPad · Mac

Ask your contract.

Plain-language answers from the governing documents — every one cited, down to the section. Online or offline, at altitude or at home.

Cited answers Works offline E2E-encrypted sync No telemetry

The answer engine

Every answer shows its work.

Sectional AI doesn't answer from a model's memory. It retrieves the governing text first, answers from it second — and cites it, verbatim, down to the section. If the documents don't support an answer, it says so.

SCTNL · ANSWER ONLINE

What is a flight duty period, and when does it end?

A flight duty period “begins when a flightcrew member is required to report for duty with the intention of conducting a flight, a series of flights, or positioning or ferrying flights” and “ends when the aircraft is parked after the last flight and there is no intention for further aircraft movement by the same flightcrew member.”

14 CFR 117.3 Definitions — “Flight duty period”
Citations are tappable — the source opens with the exact passage highlighted. Contract citations carry full depth, e.g. Section 23 K. 1. d.

One app

Your flying life, organized.

The contract assistant is the heart of it — around it, everything a line pilot keeps track of, in one place, on your device.

Sectional AI on Mac: a contract question answered with cited sections beside the source document

Flight Schedule

Your month, your trips, legs and layovers — with live gates, delays and aircraft when you're online.

Trip detail view

Logbook

Every leg logged automatically from your schedule. Yours to export, always.

Logbook view

My Money

Pay, decoded — rates, per diem and pay-period estimates, labeled as estimates.

Pay overview

My Seniority

Your number in context — system and category standing, kept current.

Seniority view

Under the hood

Built like avionics, not a chatbot.

The document library lives on your device, pre-indexed for semantic search. The answer engine is hybrid: a frontier model when you're online, Apple's on-device model when you're not. The sources never change — and neither does the rule that every answer must cite them.

01 · Retrieve

Search that never phones home

Your question is embedded and matched against the library on the device itself — 768-dimensional vectors over the actual governing text. Retrieval works identically in airplane mode.

02 · Answer

Online or offline, same sources

Online, a frontier model reads the retrieved sections and writes the answer. Offline, Apple's on-device model takes over. Both answer only from what was retrieved.

03 · Cite

Verbatim, to the section

Answers quote the governing text and cite it exactly. When the documents conflict — contract vs. federal rules — both are surfaced and the conflict is flagged.

04 · Sync

Signed content, sealed sync

Document updates arrive over a cryptographically signed channel. Cross-device sync moves only end-to-end-encrypted ciphertext — the server cannot read it.

YOUR DEVICE · Document library + index · Schedule · logbook · pay · Profile · seniority stays here. all of it. ANSWER ENGINE reads excerpts, answers, cites. logs nothing. question + retrieved excerpts only cited answer identity · schedule · location — never sent
YOUR DEVICE
  • · Document library + index
  • · Schedule · logbook · pay
  • · Profile · seniority
question + retrieved excerpts only
ANSWER ENGINE
  • reads excerpts, answers, cites.
  • logs nothing.
cited answer
identity · schedule · location — never sent

Privacy

Private by architecture, not by promise.

The system is built so there is almost nothing to trust us with. This is the whole ledger:

Data we collect
A hashed work email and an opaque member identifier. That's the list.
Questions logged
NEVER — not stored, not used for training, not seen by the developer.
Schedule · logbook · pay
Never leave your device.
Cross-device sync
End-to-end encrypted ciphertext. We cannot read it, even if asked.
Analytics & tracking
NONE — no telemetry, no advertising, no third-party SDKs.
Data sold
NONE. EVER.

The full policy is short enough to actually read: privacy policy.

Membership

Distributed to covered pilots.

Sectional AI ships on the App Store as an unlisted app — fully reviewed by Apple, reachable only by direct link. Contract content is delivered only to verified members who already hold these documents in their professional capacity.

01

Install by direct link. The link publishes here the day 1.0 clears App Review — until then, ask a colleague or write us.

02

Verify with your work email. A one-time code, no password. Your employee number is checked against the member roster once, then kept only as a keyed hash.

03

The library syncs to your device. Documents, seniority, and pay data download once, update automatically, and work offline from then on.

ACCESSUNLISTED

1.0 is in final App Review. The direct App Store link will appear right here.

iPhoneiPadMac (Apple silicon)

Free · iOS/iPadOS 26 or later · questions to support@sectionalai.app

Independent tool. Sectional AI is not affiliated with, endorsed by, or sponsored by Delta Air Lines, ALPA, or any airline or union. It is a research tool: final authority on contract interpretation rests with the contract, the union, and the FARs. It does not provide legal advice and does not answer operational or safety-of-flight questions.