Know your duty. Know your trip. Know what you should be paid.
An offline-first crew companion for cabin crew, pilots and airline operations — roster, trips, layovers, documents and expenses, built around the most transparent Per Diem engine in aviation. Every essential function keeps working during a flight, on a layover, on a bad connection, or with no internet at all.
A crew companion, not an airline HR system.
The questions crew actually ask are narrow and repetitive: how much Per Diem should I get for this trip? Was I paid correctly? What changed in my roster? Where is the hotel and how do I reach it? What time is pickup in the time zone I am currently standing in? Aviation answers those, on the device, whether or not there is a connection — and when the answer is an amount of money, it shows exactly how it got there.


One engine behind every figure.
Screen count enumerated from the shipping web client’s route tree, not from a brochure. Native iOS and Android clients cover the offline core and are catching up destination by destination.
Five things that follow from building offline-first.
Most crew apps are a thin window onto an airline system: lose the connection and you lose the app. Aviation starts from the opposite assumption — that the moment you most need your roster, your documents and your allowance is the moment you have no signal.
It works with no connection at all
The case the product exists for is a crew member in the air, in a hotel with expensive roaming, or in a country where their data simply does not work. Roster, duty details, documents, checklists, Per Diem calculation and the layover brief all run from an on-device data pack — not a cache that expires the moment you need it.
The money number is deterministic
Allowances are computed by a single engine over exact integer money — no floating point anywhere in the financial path. The same trip and the same rules always produce the same amount, and any change that could alter a produced amount bumps the engine version so an old calculation stays reproducible.
Every amount shows its work
A result is never just a figure. You get the duty periods it was split into, the time zones and DST boundaries applied, which meals were deducted and why, the rate and FX used, and the contract clause each step came from — so you can check it, and so you can argue it.
It checks the payslip against the roster
Reconciliation compares what you were actually paid against what the roster earned, and flags allowances that are missing, wrong, duplicated or underpaid — then builds the claim, with the calculation, the evidence and the policy reference attached.
The assistant explains, it never decides the amount
AI reads a roster PDF, answers “what changed?”, translates a document or narrates why a figure came out as it did. It is structurally barred from inventing or overriding an amount — the number always comes from the engine.
Three editions, shipping at the same time.
This is a product line rather than a choice of business model. The free edition is not a trial — it is a complete, permanently offline application with no account behind it.
Free
Fully offline, no accountThe complete offline crew companion on iPhone — roster, duties, trips, documents, checklists and the Per Diem engine, running entirely on the device. No account is required and nothing is synced, which means nothing about you leaves the phone.
- Offline roster & duty management
- Per Diem calculation with full trace
- Document wallet
- Layover companion
- Checklists & reminders
Paid
Sync, history & the crew networkEverything in Free, plus the cloud: sync across your phone, tablet and the web, retained calculation and payslip history, the crew network, live flight updates, and the deeper expense and reconciliation tooling.
- Multi-device sync
- Payroll reconciliation & claim builder
- Cloud history & analytics
- Crew communication
- Expense submission & approval tracking
- Larger document storage
Corp
The airline editionA tenanted deployment for an airline: department hierarchy, delegated airline administrators inside the product, crew import and export, and the integration surface an operations department needs.
- Tenants & department hierarchy
- Delegated airline administrators
- SSO (SAML / OIDC) & SCIM provisioning
- Custom policies & branding
- Regional data residency
- API keys & webhooks
- White-label configuration