iPreFlight Genesis vs GenDec
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPreFlight Genesis
This app streamlines flight planning by integrating takeoff/landing performance, weight and balance, and manufacturer requirements. It calculates required fuel based on operational data and weather forecasts, and can prepare a comprehensive trip book and flight release. It offers offline flight plan creation with later updates.
- Integrated flight planning
- Takeoff/landing performance analysis
- Weight and balance calculations
- Fuel burn optimization
- Trip book creation
- Offline flight plan capability
- Flight release preparation
Read full descriptionHide full description
iPreFlight Genesis™, the next generation of iPreFlight, integrates flight planning, takeoff/landing performance limitations, and manufacturers’ weight and balance requirements with only minimal user input required. The flight planning element uses manufacturers’ operational data, in conjunction with current forecast weather conditions, to calculate the fuel required for the flight. The fuel calculation includes fuel burn (optimized for minimum fuel or time), and fuel for reserves, alternates, and holding. Along with runway analysis (RWA), weight and balance (WB), and flight planning, Genesis allows the user to prepare a trip book containing all textual and graphic weather products for the planned flight. The trip may be created days in advance of the flight, stored on the iPad, and can be automatically updated as products are revised. Or if needed, Genesis can create flight plans without an internet connection by using historical weather information, and then can be updated when internet is available. Approaching departure time, the user can easily prepare a flight release, consolidating RWA, WB, flight planning, and weather products. The flight release can be emailed, stored on an iPad, and/or shared with other flight deck crew members.
GenDec
Read full descriptionHide full description
GenDec turns the most tedious part of international general aviation into a two-minute job. Build a complete General Declaration on your iPhone or iPad, sign it on screen, and send a clean, regulator-ready PDF before you start engines. BUILT FOR FLIGHT CREWS AND OPERATORS • Part-NCO/NCC private and corporate operations • Handlers and dispatchers preparing arrival/departure documents • Ferry, delivery, and charter flights crossing borders SEVEN PROFESSIONAL TEMPLATES • ICAO Standard (Annex 9) — fits one page, even signed • FAA / CBP Form 7507 for US arrivals and departures • European (EN/FR), Asia, and three handler-style generic layouts CDC EBOLA ATTESTATION FOR US FLIGHTS Flying to the United States? Every passenger must sign the CDC Ebola attestation before boarding, and the operator keeps it for 42 days. Switch it on in Settings and GenDec flags every flight into the US: passengers sign the official CDC form on your iPhone or iPad, parents sign for children, unsigned forms print pre-filled for paper, and one PDF holds the flight and every signature for the 42-day record. PASSPORT SCANNING Point the camera at a passport's machine-readable zone and GenDec fills in the crew or passenger details instantly. Photos and passport data never leave your device. EVERYTHING A GENDEC NEEDS • Operator, aircraft, registration, flight number, routing, and stopovers • Crew and passenger manifests with ranks and license numbers • Declaration of Health, customs questionnaire, and disinsection details • On-screen signature capture • Offline airport lookup with a built-in worldwide database SHARE INSTANTLY Email the finished PDF to handlers, customs, or your ops team straight from the app, and keep a record of what was sent. PRIVATE BY DESIGN Everything is stored locally on your device. No accounts, no cloud uploads, no analytics, no tracking. Optional Face ID lock protects your documents. FREE 30-DAY TRIAL Every feature is free for 30 days. After that, a Pro subscription (monthly or yearly) or a one-time lifetime purchase unlocks document creation and export; viewing your existing documents stays free forever. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fhmlabs.com/privacy/gendec
Screenshots
Verdict
The clearest difference is update cadence: GenDec at every 6 days against iPreFlight Genesis's every 3 weeks. iPreFlight Genesis's advantage is iOS requirement (15.6 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. iPreFlight Genesis sells 1 in-app purchase, starting at $4.99 per year and GenDec sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
iPreFlight Genesis ships an update every 3 weeks, GenDec every 6 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | iPreFlight Genesis | GenDec |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (7 ratings) — better | — |
| Positive reviews | 28.6% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 202 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Aircraft Performance Group, LLC | Flavio Henrique Mesquita |
In-app purchases
iPreFlight Genesis
- APG Subscription (1 year)$4.991 Year
GenDec
- Pro Monthly$5.991 Month
- Pro Yearly$49.991 Year
- Pro Lifetime$129.99
Questions
Is iPreFlight Genesis free?
Is GenDec free?
Do iPreFlight Genesis or GenDec have ads?
Which is updated more often, iPreFlight Genesis or GenDec?
Other comparisons















