# Offshore Safe Approach Calc — with obstacle plotting > Offshore helicopter pilot tool for helideck visualization and safe approach planning. (iPhone/iPad app by Aviation Mobile Apps, LLC..) - Source: https://appshunter.io/ios/app/offshore-safe-approach-calc/id1449305694 (this page in markdown: same URL + `.md`) - Developer: [Aviation Mobile Apps, LLC.](https://appshunter.io/developer/286046308) - Category: Navigation, Education - Price: Free - Rating: 5.00/5 from 3 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 34 MB - Languages: American English - Released: 2019-01-25 - Data updated: 2026-08-15 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/offshore-safe-approach-calc/id1449305694/reviews.md ## What is Offshore Safe Approach Calc? The Offshore Obstacle and Safe Approach Calculator is a situational awareness and planning tool that will assist qualified offshore helicopter pilots in visualizing the helideck layout and the relevant obstacles sectors on any installation or platform. All helicopter pilots flying offshore will significantly benefit from this APP, as it will provide a better plan view of the helideck orientation in relation to the wind direction and final approach heading. There has been several incidents and accidents where pilots were not aware of the deck orientation, obstacle sectors, and the wind direction. These variables are all covered in this APP, and it provides pilots with a significant increase of Situational Awareness (SA) during the initial planning and conduct of an offshore helicopter flight. ## Key features - Helideck layout visualization - Obstacle sector plotting - Situational awareness enhancement - Wind direction integration - Approach heading display - Flight planning assistance ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/offshore-safe-approach-calc/id1449305694/reviews.md ### 5/5 — good *2024-12-09* good ### 5/5 — helicopter *2021-09-10* I would love to have it holly say holly please give it to me holly ### 5/5 — Remarkable initiative *2019-06-06* Landing an helicopter safely on the helideck of an offshore facility requires a very specialized skill: preventing that parts of your helicopter that you can’t see hit obstacles out of your visual field, based on the imaginary boundaries of an obstacle-free sector, assumed based on the relative position of helideck markings: the H letter and the aiming circle. This app can be very helpful to ascertain the desired effect of the above mentioned skill. ### 5/5 — Simple and Fast to use *2019-03-05* Easy to make changes to heading and wind and see the big picture. Paper plotting got messy when things got busy with frequent ship/target movement. This was a breeze to make changes and updates to ship positions based on approach track. Way better than writing plots on paper. This app will be part of my flight bag every day I fly offshore. **Developer response:** Thank you for the feedback! We have completed a new update that will automatically calculate the crosswind component when the inbound heading is selected on the 2nd page of the APP. This will ensure that crosswind limitation is not exceeded during the approach and landing. ### 5/5 — Wonderful Planning Tool *2019-01-27* This app greatly improves the pilot’s Situational awareness and confidence. Enhances safety and fosters good practices if used accordingly. Great idea to create an app that uses existing technology and data to help offshore pilots plan their approaches. ### 4/5 — Offshore Line Induction Training *2019-01-26* I have been a TRE on many different Helicopter types and been involved with line and simulator training for experienced and new offshore pilots in various parts of the world. This APP provides the foundation for highlighting the importance of obstacle orientation and wind direction. The ability to to enter 2 values into APP provide an instantaneous solution to the best and safest approach for any platform or vessel! ### 5/5 — Great app for Situational Awareness! *2019-01-26* A great tool for planning and use in flight, easy to use and understand there is an update coming soon with the ability to change the scale for the obstacles. Gone are the old days of drawing on a board! **Developer response:** Thank you for the feedback! We will continue to enhance and improve the APP to best suit every operator’s operational and procedural requirements! ### 1/5 — Waste of money *2019-01-25* Don‘t waste $13 on this app! You get the same level of awareness by drawing it out on a piece of paper. **Developer response:** Thank you for the feedback. The APP was designed to increase Situational Awareness and reduce workload when flying offshore, especially in marginal weather and planning an ARA/GPS approach. The ability to plot and visualise obstructions on any platform or vessel, with the ability to upload a photo of the facility, far out performs a piece of paper and how the information is provided. ## Frequently asked questions about Offshore Safe Approach Calc ### What is Offshore Safe Approach Calc used for? Offshore Safe Approach Calc is a tool for offshore helicopter pilots to visualize helideck layouts, obstacle sectors, and wind direction. It aids in planning safer approaches and increasing situational awareness during flights. ### Who is the target audience for Offshore Safe Approach Calc? The app is designed for qualified offshore helicopter pilots who operate in environments with helidecks on installations or platforms. It aims to improve their planning and execution of flights. ### Is Offshore Safe Approach Calc available on multiple devices? Yes, Offshore Safe Approach Calc is available for iPhone, iPad, and iPod devices, making it accessible to a wide range of Apple users. ### How often is Offshore Safe Approach Calc updated? The app was last updated on October 1, 2019, with version 1.4.1. While the last update was some time ago, it remains a functional tool for its intended purpose. ### What is the age rating for Offshore Safe Approach Calc? Offshore Safe Approach Calc has an age rating of 4+, indicating it is suitable for users of all ages, though its primary utility is for professional pilots. ### Does Offshore Safe Approach Calc have ads? No, Offshore Safe Approach Calc does not contain advertisements. Users can utilize its features without interruption from ads. ### What is the user feedback on Offshore Safe Approach Calc? Based on the available data, Offshore Safe Approach Calc has received a perfect 5.0-star rating from 3 reviews, suggesting a very positive user sentiment among its users. ### Can Offshore Safe Approach Calc be used offline? The description does not explicitly state offline capabilities. However, as a planning and visualization tool for pilots, it is likely designed to be usable in environments where internet connectivity may be limited. ## Version history (last 5 releases) ### 1.4.1 — 2019-10-01 This update corrects an issue on the obstacle calculator screen where the radar display failed to update immediately after the dismissal of the onscreen keyboard. ### 1.4 — 2019-09-25 This update fixes an issue that prevents the app from opening on devices running iOS 13. ### 1.3 — 2019-06-18 This update corrects a minor issue present on the iPad version, where the wind direction label on the approach screen did not update if you used the rotation gesture to change wind direction. ### 1.2 — 2019-06-02 1. Added crosswind components readout on obstacles screen 2. Reversed input field order of distance and bearing fields ### 1.1 — 2019-02-09 Added 5 levels of zoom on the obstacles screen. This provides pilots with the ability to plot obstacles that are the very close to the platform and zoom in for better awareness. ## Apps similar to Offshore Safe Approach Calc | App | Rating | Price | Category | | --- | --- | --- | --- | | [PC2 DLE](https://appshunter.io/ios/app/pc2-dle/id604015383) | — | Free | Navigation | | [AW Skyflight EVO](https://appshunter.io/ios/app/aw-skyflight-evo/id1575702462) | — | Free | Navigation | | [Air Navigation Pro](https://appshunter.io/ios/app/air-navigation-pro/id301046057) | 4.6 (626) | Free | Navigation | | [H175 Flight Perfo](https://appshunter.io/ios/app/h175-flight-perfo/id1042270881) | — | Free | Navigation | | [Navigraph Charts](https://appshunter.io/ios/app/navigraph-charts/id999805677) | 4.9 (2,687) | Free | Navigation | | [FltPlan Go for iPhone](https://appshunter.io/ios/app/fltplan-go-for-iphone/id895187253) | 4.0 (145) | Free | Navigation | ## More apps by Aviation Mobile Apps, LLC. - [E6B Aviation Calculator](https://appshunter.io/ios/app/e6b-aviation-calculator/id286046305) - [METARs Aviation Weather](https://appshunter.io/ios/app/metars-aviation-weather/id1000246864) - [GPS Coordinate Converter](https://appshunter.io/ios/app/gps-coordinate-converter/id1093539831) - [Holding Pattern Computer](https://appshunter.io/ios/app/holding-pattern-computer/id1093542620) - [Time Calculator For Pilots](https://appshunter.io/ios/app/time-calculator-for-pilots/id1096166900) - [Aviation Sticker Pack](https://appshunter.io/ios/app/aviation-sticker-pack/id1202580215) All apps by Aviation Mobile Apps, LLC.: https://appshunter.io/developer/286046308 --- *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 2026-08-15.*