# E6B Descent Planner > Pilot's circular slide rule for real-time descent planning calculations. (iPhone/iPad app by Arthur Varrassi.) - Source: https://appshunter.io/ios/app/e6b-descent-planner/id673252710 (this page in markdown: same URL + `.md`) - Developer: [Arthur Varrassi](https://appshunter.io/developer/673243828) - Category: Navigation, Reference - Price: Free - Rating: 3.50/5 from 14 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 37 MB - Languages: American English - Released: 2013-07-20 - Data updated: 2026-09-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/e6b-descent-planner/id673252710/reviews.md ## What is E6B Descent Planner? The E6B Descent Planner provides a fully functional circular slide rule for use in real time descent planning. Using one finger, and with a single turn of the rotating inner disk, pilots can easily perform calculations to determine top of descent distance, angle of descent, vertical descent rate required, glide ratio, maximum glide distance based on altitude, plus many other calculations that are not commonly associated with a mechanical E6B. ## Key features - Digital circular slide rule - Real-time descent planning - Top of descent distance calculation - Descent angle calculation - Vertical descent rate calculation - Glide ratio calculation - Maximum glide distance calculation ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/e6b-descent-planner/id673252710/reviews.md ### 5/5 — Outstanding, a real force multiplayer in the cockpit *2021-11-23* This is a fantastic app, the ability to set ratios and angle of descent is far superior to any FMS that I have come across. I truly love that there are developers like this committed to advancing the art and skill of piloting without a stupid computer telling us what to do. This app is for the most important component in the aircraft, the pilots brain. Thanks again, and the white paper document is fantastic. God bless. ### 5/5 — Excellent! *2019-07-08* Great ODP climb gradient tool. ### 5/5 — Just what I’ve been looking for *2019-05-05* Both sides of the calculation can b performed in one move. It is so easy to use. Absolutely fantastic. If there was a tangible card wheel on sale I would buy it also. ### 5/5 — A great pilot tool! *2018-10-15* What an outstanding app! Brilliant and free!!! ### 1/5 — You get what you paid for *2017-11-24, version 1.3.1* Too small to be usable on a phone screen. ### 5/5 — FAST ACURATE *2016-06-21* Fast ### 5/5 — Brilliantly useful *2015-10-20* Once the principle is understood and some key positions of the wheel established, this is incredibly useful. I use it for conversions and descent planning in a flight simulator and I'm finding it particularly useful for simming Russian aircraft with metric instruments. ### 5/5 — PIT *2015-09-27* This device does it all. Quickly, efficiently and accurately. One needs to try it out personally to appreciate its value and at the price! Really. The only concern is that it's not allowed in the examination room. Cheers! ### 5/5 — Interesting *2015-05-30* Not only is it a functional E6B, but the article in the info section was a interesting read. Recent update makes it even better. ### 5/5 — Good *2015-05-30, version 1.2.0* Интересное решение. ## Frequently asked questions about E6B Descent Planner ### What is E6B Descent Planner used for? E6B Descent Planner is a digital circular slide rule designed for pilots to perform real-time descent planning calculations. It helps determine metrics like top of descent distance, descent angle, and glide ratio. ### Is E6B Descent Planner free to use? Yes, E6B Descent Planner is available for free. There are no in-app purchases or advertisements associated with its use. ### What devices does E6B Descent Planner support? E6B Descent Planner is compatible with iPhone, iPad, and iPod devices. ### What is the age rating for E6B Descent Planner? The app has an age rating of 4+, making it suitable for a wide range of users. ### How often is E6B Descent Planner updated? The latest version, 1.4.1, was released on December 17, 2019. While it has not been updated recently, it provides core functionality for descent planning. ### What are the main calculations E6B Descent Planner can perform? It can calculate top of descent distance, angle of descent, vertical descent rate, glide ratio, and maximum glide distance based on altitude. ### Does E6B Descent Planner have ads? No, E6B Descent Planner is ad-free. Users can perform calculations without interruption. ### What is the user sentiment for E6B Descent Planner? Based on the available data, E6B Descent Planner has a rating of 3.5 stars from 14 ratings, indicating a generally positive but mixed user reception. ## Version history (last 5 releases) ### 1.4.1 — 2019-12-17 - Updated to work better with new iOS 13 User Interface Please tap on RATE THIS APP on the About screen to provide greatly appreciated feedback and rating. ### 1.4.0 — 2019-10-22 New feature added!! The much requested landscape mode support is now available when running this app on iPad devices. For iPhone devices, portrait mode only is available for both normal and upside down orientations. Please continue providing feedback and suggestions and PLEASE provide a review and rating if you like this app. ### 1.3.1 — 2016-10-10 Updated to fix display problem with iOS 10 ### 1.3.0 — 2016-09-23 New in this release: The ability to save and then restore at any time a pre-selected rotation of the inner dial. This allows you to set a previously computed value such as a 1:9 Glide Ratio for best glide speed calculations. Ex. By setting 1 on the outer scale over 9 on the inner scale (the best glide speed glide ratio for a Cessna 172SP), you can easily see that at an altitude of 7000 feet AGL you should be able to glide approx. 10 NM in an engine idle scenario. You can save this reference by pressing the Save button and then restore it any time by pressing the Restore button even after exiting and then re-opening the application. ### 1.2.1 — 2016-06-06 Updated to display properly with iOS 9 ## Apps similar to E6B Descent Planner | App | Rating | Price | Category | | --- | --- | --- | --- | | [中研院導覽GO](https://appshunter.io/ios/app/go/id1283944960) | 5.0 (1) | Free | Navigation | | [Wainwrights](https://appshunter.io/ios/app/wainwrights/id420365900) | 2.0 (1) | $0.99 | Navigation | | [ABİS Ümraniye](https://appshunter.io/ios/app/abis-umraniye/id862338740) | — | Free | Navigation | | [NPP Near](https://appshunter.io/ios/app/npp-near/id882517780) | 5.0 (1) | Free | Navigation | | [Taksimetrem](https://appshunter.io/ios/app/taksimetrem/id903425320) | — | Free | Navigation | | [Colorado Fourteener Peaks](https://appshunter.io/ios/app/colorado-fourteener-peaks/id1514995780) | 3.7 (3) | Free | Navigation | ## More apps by Arthur Varrassi - [Visual Traffic Pattern](https://appshunter.io/ios/app/visual-traffic-pattern/id917517114) - [Visual Holding Pattern](https://appshunter.io/ios/app/visual-holding-pattern/id1003087844) All apps by Arthur Varrassi: https://appshunter.io/developer/673243828 ## Related topics [e6b pathfinder](https://appshunter.io/ios/topics/e6b-pathfinder) --- *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 2026-09-04.*