# EF1 E6B Flight Computer — E6B Calculator & C/X Planner > Offline electronic flight computer for pilots with navigation and weight & balance features. (iPhone/iPad app by EntireFlight LLC.) - Source: https://appshunter.io/ios/app/ef1-e6b-flight-computer/id6763776403 (this page in markdown: same URL + `.md`) - Developer: [EntireFlight LLC](https://appshunter.io/developer/1895485027) - Category: Navigation, Productivity - Price: Free with in-app purchases - Rating: 3.80/5 from 6 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.1 · 47 MB - Languages: American English - Released: 2026-05-15 - Data updated: 2026-09-01 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/ef1-e6b-flight-computer/id6763776403/reviews.md ## What is EF1 E6B Flight Computer? EF1 E6B is a complete electronic flight computer built for student pilots, CFIs, and certificated pilots who want a fast, offline, modern E6B without the bloat. EVERYTHING AN E6B DOES - FASTER • Wind triangle (heading, ground speed, wind correction) • True / calibrated / equivalent airspeed • Density and pressure altitude • Time / speed / distance • Fuel burn, endurance, and range • Standard atmosphere + lapse rate • Compass + magnetic heading with deviation and variation • Reciprocal headings, pivotal altitude, standard rate turns • Off-course (1-in-60) corrections • Climb / descent rates and ground distance • Cloud base, glide distance, holding pattern entry • Linear interpolation • Universal converter (length, mass, volume, speed, temp, pressure) CROSS-COUNTRY PLANNING Build a full multi-leg route with up to 20 checkpoints. Set true course, distance, wind, TAS, fuel rate, MSA, and frequencies for each leg. Drag to reorder, duplicate, or reverse the route in one tap. Choose VFR or IFR mode and the app applies the correct FAR fuel rules: • VFR: 30-min day or 45-min night reserve, optional alternate • IFR: 45-min reserve, alternate-required toggle, alternate fuel auto-computed from distance to alternate Trip totals show ETE, ETA, fuel legality (LEGAL or NOT LEGAL with margin), and per-leg fuel remaining. PRINTABLE NAV LOG Generate a clean PDF nav log — VFR or IFR titled — with every checkpoint, fuel breakdown, frequencies card, and a side panel showing usable fuel, taxi, climb, enroute, alternate, and reserve. Email, print, or save it. FLY THE CROSS-COUNTRY Tap START FLIGHT, then mark off each checkpoint as you pass it. The app records actual time enroute, actual ground speed, and ATA, then writes them back into your post-flight log automatically. WEIGHT & BALANCE Build aircraft profiles, enter station moments, and check CG against the envelope. DESIGNED FOR PILOTS • Works fully offline - no signal, no problem • Optimized for iPhone and iPad with dark cockpit theme • Adjustable font scale for kneeboard readability • US or metric units, switch any time • Save unlimited routes • Backup and restore your data SUBSCRIPTION The EF1 E6B unlocks all features with a 7-day free trial, then $3.99/month or $19.99/year. Cancel any time before the trial ends - no charge. Subscription auto-renews for the same period at the same price unless cancelled at least 24 hours before the end of the period. Manage or cancel in your iOS Settings → Apple ID → Subscriptions. Privacy: https://www.entireflight.com/policies/privacy-policy. Terms: https://www.entireflight.com/policies/terms-of-service ## Key features - Wind triangle calculations - Time, speed, distance calculations - Fuel burn, endurance, and range - Multi-leg cross-country planning - Printable VFR/IFR navigation logs - Weight and balance calculations - Fully offline functionality ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Monthly | $3.99 | per month | | Annual | $19.99 | per year | ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/ef1-e6b-flight-computer/id6763776403/reviews.md ### 5/5 — Must Have Pilot App *2026-06-20* As a CFI, I wish I had this back when I was getting my own Certificates/Ratings. This app seems to be built by pilots! ### 5/5 — Amazing *2026-06-08* I really love this e6b app it’s great for getting quick calculations in flight but also great test prep. I love that I could build an entire cross country nav log and export it for printing. Also the interpolation feature is a game changer from interpolating performance charts Awesome app! ## Frequently asked questions about EF1 E6B Flight Computer ### What is EF1 E6B? EF1 E6B is a comprehensive electronic flight computer designed for pilots. It offers a wide range of aviation calculations, including wind triangle, fuel management, and cross-country planning, all accessible offline. ### Does EF1 E6B work offline? Yes, EF1 E6B is designed to work fully offline, meaning you can perform all calculations and planning without an internet connection, which is crucial for aviation. ### What are the subscription options for EF1 E6B? EF1 E6B offers a 7-day free trial, after which it costs $3.99 per month or $19.99 per year. You can cancel anytime before the trial ends to avoid charges. ### How do I cancel my EF1 E6B subscription? You can manage or cancel your subscription by going to your iOS Settings, then tapping your Apple ID, and selecting 'Subscriptions'. ### Can I generate navigation logs with EF1 E6B? Yes, EF1 E6B allows you to generate clean, printable PDF navigation logs for both VFR and IFR flights. These logs include checkpoint details, fuel breakdowns, and other essential information. ### Does EF1 E6B have ads? Yes, EF1 E6B contains advertisements. While it offers a free trial and core functionality, users may encounter ads within the application. ### What devices is EF1 E6B available on? EF1 E6B is optimized for both iPhone and iPad, offering a dark cockpit theme and adjustable font scaling for better readability on a kneeboard. ### How often is EF1 E6B updated? The latest version of EF1 E6B is 1.0.13, which was last updated on July 18, 2026. This indicates a recent update, suggesting ongoing development and support. ## Version history (last 5 releases) ### 1.0.16 — 2026-08-21 Performance improvements and behind-the-scenes updates. ### 1.0.15 — 2026-07-31 Behind-the-scenes improvements No changes to your experience. ### 1.0.14 — 2026-07-24 This update makes cross country planning and your PDF nav log even better. New: • Tap the calculator icon on the CAS field to jump straight to the airspeed calculator, then hop right back to your plan. • Add VOR frequencies and give any frequency a custom name or ident (like a VOR ident) for each checkpoint. • Climb and descent legs now show the target altitude right on the nav log. Improved PDF nav log: • Frequencies are grouped by checkpoint in clean, evenly sized cards. • Full checkpoint names, no more cut off titles. • Smarter page layout so the frequencies and legend land where there is room, with no blank pages as your route grows. • Calibrated airspeed and total distance shown in the header where you need them. Also: • Download PDF Nav Log button moved to the top of Trip Total. • Fly The Cross Country now shows every checkpoint on longer routes. • Fixed the Save Route name field so it stays above the keyboard. Thanks for flying with EntireFlight. Questions or ideas? Email support@entireflight.com. ### 1.0.14 — 2026-07-24 This update makes cross country planning and your PDF nav log even better. New: • Tap the calculator icon on the CAS field to jump straight to the airspeed calculator, then hop right back to your plan. • Add VOR frequencies and give any frequency a custom name or ident (like a VOR ident) for each checkpoint. • Climb and descent legs now show the target altitude right on the nav log. Improved PDF nav log: • Frequencies are grouped by checkpoint in clean, evenly sized cards. • Full checkpoint names, no more cut off titles. • Smarter page layout so the frequencies and legend land where there is room, with no blank pages as your route grows. • Calibrated airspeed and total distance shown in the header where you need them. Also: • Download PDF Nav Log button moved to the top of Trip Total. • Fly The Cross Country now shows every checkpoint on longer routes. • Fixed the Save Route name field so it stays above the keyboard. Thanks for flying with EntireFlight. Questions or ideas? Email support@entireflight.com. ### 1.0.13 — 2026-07-18 Small improvements: copy any result with a long press and paste into any field and general polish. ## More apps by EntireFlight LLC - [EntireFlight FAR/AIM](https://appshunter.io/ios/app/entireflight-faraim/id6775941392) All apps by EntireFlight LLC: https://appshunter.io/developer/1895485027 ## Related topics [computing](https://appshunter.io/ios/topics/computing) · [ef1 e6b flight computer](https://appshunter.io/ios/topics/ef1-e6b-flight-computer) · [first flight calculator](https://appshunter.io/ios/topics/first-flight-calculator) · [computational](https://appshunter.io/ios/topics/computational) · [mrs flight control system](https://appshunter.io/ios/topics/mrs-flight-control-system) · [e6b flight computer cfi pilot](https://appshunter.io/ios/topics/e6b-flight-computer-cfi-pilot) · [e6b flight computer](https://appshunter.io/ios/topics/e6b-flight-computer) · [the flight computer teacher](https://appshunter.io/ios/topics/the-flight-computer-teacher) · [e6bja e6b flight computer](https://appshunter.io/ios/topics/e6bja-e6b-flight-computer) · [737ng flow & emergency trainer](https://appshunter.io/ios/topics/737ng-flow-emergency-trainer) · [e6b flight computer calc](https://appshunter.io/ios/topics/e6b-flight-computer-calc) · [e6bx e6b flight computer](https://appshunter.io/ios/topics/e6bx-e6b-flight-computer) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*