HSI - Instrument Approach Sim3.1 - App Store

HSI - Instrument Approach Trainer is the only app that lets you import real PDF approach plates and fly approaches right on top of them. Whether you're a student pilot preparing for your instrument rating, a CFI teaching procedures, or a current pilot staying sharp - HSI puts realistic approach training in your pocket. Initially developed for Australian advanced flying training by an Air Force Qualified Flying Instructor - HSI is built by a pilot for pilots.

WHAT MAKES HSI DIFFERENT

Import Your Own Approach Plates Load any PDF approach plate and practice the procedure as published. No other app offers this. Fly the approaches you'll actually fly in the real aircraft.

Realistic HSI Instrument - A beautifully rendered HSI with course selector, CDI, and heading bug. Designed after modern glass and PC-21 style displays.

Multiple Nav Modes - Practice VOR, TACAN, LOC, and NDB approaches. Set up any scenario with customizable navaid positions and approach tracks.

Holding Patterns - Practice standard and non-standard holding patterns with automatic entry selection. Direct, teardrop, and parallel entries with live guidance overlay. DME and timed holds included and fully customizable.

Wind - Set wind direction and speed to practice real-world conditions. Essential for instrument rating prep.

Global Leaderboard - Compete with pilots worldwide in Fix-to-Fix challenges. See how you rank.

Built-In Fix to Fix (Point to Point) Training - HSI and map overlays that help you visualise this skill.

Speed Control - Run approaches at 1x, 2x, 5x and 10x speed. Slow it down to learn, speed it up to drill.

FREE TO TRY

Download HSI for free and explore every feature. Love it? Unlock HSI Pro (one-time purchase) for the full experience:

HSI Pro includes: . PDF approach plate import . No timeout for Pro features (speed ramp, interactive instruments, map follow), Fix-to-Fix Challenge Leaderboard and more.

WHO IT'S FOR

Student Pilots - Build your conceptual knowledge of HSI instruments and approach procedures before expensive simulator or flight hours.

Instrument-Rated Pilots - Stay current on procedures. Practice approaches you'll fly on your next trip. Import the actual plates.

Flight Instructors (CFIs) - Demonstrate HSI concepts to students on an iPad. Import the approach plate you're briefing and walk through it step by step.

Military Pilots - Originally developed for Australian military advanced flying training. PC-21 style HSI graphics feel right at home.

WHAT PILOTS ARE SAYING - 4.5 stars from pilots who use it

"I still use it to keep my skills up after a break from IF flight/pre IRA"

"Great tool to brush up on IFR point to point concept and hold entries"

"If you don't fly much IF this HSI tool will help you out"

"Great for your own practice or explaining to a friend how to do point to points and orientate yourself in IF"

SAVE MONEY A single flight hour costs hundreds of dollars. HSI Pro costs a fraction of that - once. Practice unlimited approaches and walk into your next checkride, sim session, or flight with confidence.

PRIVACY HSI collects zero personal data. No accounts, no tracking. Just training.

Questions or feedback? We'd love to hear from you.

Version History NEW: This version is all about HOLDING PATTERNS! Practice standard and non-standard holding patterns with automatic entry selection. Direct, teardrop, and parallel entries with live guidance overlay. DME and timed holds included with customizable initial approach fixe.
UIX improvements and bug fixes 3.1 Apr 12 HSI 3.0 — Biggest update ever!

NOW FREE TO DOWNLOAD Try HSI before you buy. Explore tutorials and basic features at no cost. Upgrade to HSI Pro (one-time purchase) to unlock everything.

FIX-to-FIX TRAINING New overlays show you Fix-Fix fundamentals — practice and then try Challenge Mode to see how you rank against others.

HELP SECTION In-app help and reference guides so you're never stuck.

REFRESHED UI Modernized interface with improved controls and layout.

PDF PLATE IMPORT Improved PDF import makes flying your own approach plates even more accessible.

MANY SMALL IMPROVEMENTS: Follow mode, Hide map controls, Rate-1 turns fixed, Improved HSI and Map responsiveness, 10x speed mode.

Thank you to every pilot who's supported HSI over the years. This one's for you. 3.0.0 Feb 20 New PC-21 style HSI graphics
Airspeed slider
Added 2x speed mode (now have 1x, 2x and 5x) 2.2 10/13/2025 Fixed bugs importing PDFs 2.1.3 01/09/2025 Fixed bug importing PDFs from the iOS Files app. 2.1.2 01/07/2025 Bug fixes. 2.1.1 09/09/2022 Bug Fixes 2.1 06/11/2022 Stability fixes.

Ability to run in split view with app 'ShcumApp' allowing 'ShcumApp' to control angle of bank and therefore turn performance within HSI. 2.0.3 12/19/2018 Bug fix to prevent crash when importing pdf.
Ability to run in split view with app 'ShcumApp' allowing 'ShcumApp' to control angle of bank and therefore turn performance within HSI. 2.0.2 12/04/2018 Ability to run in split view with app 'ShcumApp' allowing 'ShcumApp' to control angle of bank and therefore turn performance within HSI. 2.0.1 11/28/2018 Add your own approach charts.
See your track history for longer and clear it when needed.
Resizable windows.
Localizer mode. 2.0 09/05/2018 Bug fixed which could cause radial to display a negative number. 1.3.1 09/14/2017 Radial digital display
Radial and DME can be updated with keypad
Fixed heading bug style
Performance improvements 1.3 09/11/2017 x5 speed up mode
Ability to hide the map
Supports landscape and portrait modes including multitasking in iPads 1.2 09/09/2017 1.0 09/05/2017