Comparison

BMSNav vs Simple FTL Calculator

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

BMSNav

Features
Read full description

BMSNav is a companion app for the Falcon BMS flight simulator that displays kneeboards, briefings, and various navigation aids on a mobile device. It was built primarily to act as a sort of physical kneeboard, obviating the need to activate the pilot model and to flip through the in-game kneeboards. Note that in order to use BMSNav, you must run the accompanying server (BMSNavServer) on the same machine as BMS itself. The server monitors the kneeboard files for the selected theater and automatically [re]generates the images any time a change is made in Weapon Delivery Planner. It also monitors the briefings directory and grabs the latest HTML file whenever the user "prints" the briefing in BMS. As such, there's no need to copy/paste files or manually convert images and transfer them to your mobile device. Simply run the server, select a theater, and you're set! Detailed installation and usage instructions can be found at the BMSNav website... https://rsedev.net/bmsnav Good luck on your next mission!

About

Simple FTL Calculator

Features
Read full description

Stay compliant and fly safely with Simple FTL Calculator, the essential flight duty period (FDP) and target off-block time planning tool for pilots, flight attendants, and aviation operations personnel. Tired of complex FTL calculations? Simple FTL Calculator streamlines the process, helping you quickly determine maximum allowable duty times, manage split duty, and plan your departures to ensure you're always within regulatory limits. Designed by aviation professionals for aviation professionals, our app offers an intuitive, user-friendly interface for IOS. Key Features You'll Love: 1- Accurate FDP Calculations: Instantly find your maximum FDP based on report time and number of sectors. Our app uses standard time bands and allows for easy adjustments. 2- Smart Split Duty Support: Effortlessly calculate duty extensions for qualifying rest periods. The app automatically checks minimum break requirements and applies the correct extension (up to 50% of break time). 3- Target Off-Block Time Precision: Work backward from your FDP end time to determine the latest possible off-block time, factoring in flight duration and customizable post-flight duty buffers. 4- Seamless Integration: Use FDP results directly in the Target Off Block calculator or input times manually. Clear visual cues show data sources. 5- Fully Customizable: Tailor the app to your needs! Adjust pre-flight (before off-blocks) and post-flight (after on-blocks) duty timings. Edit the entire FDP reference table to match your airline’s specific opspecs, regional rules, or special approvals. 6- User-Friendly Experience: Dynamic alerts for recalculations ensure you always have the latest figures. Light/dark mode adapts to your device settings. Easily reset to default settings if needed. Offline functionality – no internet required. Who is this app for? Pilots & Flight Crew: Plan daily duties, assess impacts of delays, optimize split duty, and calculate return-to-base timings. Flight Operations Teams: Verify schedules, manage disruptions, and make informed crewing decisions. Aviation Training: A great tool for demonstrating FDP calculations and testing operational scenarios. Download Simple FTL Calculator today and take the guesswork out of flight duty limitations. Fly smarter, not harder! Feel free to contact us on support@simpleftl.com to add missing features or suggest improvements.

Screenshots

BMSNav4 screens
Simple FTL Calculator4 screens

Verdict

The call

The clearest difference is price: BMSNav at Free against Simple FTL Calculator's $3.99. BMSNav also leads on iOS requirement (13.4 vs 15.1). Simple FTL Calculator's advantage is update cadence (every 2 months vs every 6 months). On ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

BMSNav is free to download; Simple FTL Calculator costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

BMSNav ships an update every 6 months, Simple FTL Calculator every 2 months. The most recent releases landed on September 11, 2026 and July 5, 2026 respectively.

Scorecard3 real differences Β· 3 level
BMSNav versus Simple FTL Calculator: the parameters behind the verdict, then further details
ParameterBMSNavSimple FTL Calculator
PriceFree β€” better$3.99
Update frequencyEvery 6 monthsEvery 2 months β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.4 β€” better15.1
Further details β€” not scored
Size26 MB33 MB
Age rating4+4+
DeveloperSean EidemillerYiu Leung Sze

In-app purchases

None

BMSNav

No in-app purchases

None

Simple FTL Calculator

No in-app purchases

Questions

Is BMSNav free?
BMSNav is free to download, with no in-app purchases.
Is Simple FTL Calculator free?
Simple FTL Calculator costs $3.99, with no in-app purchases.
Do BMSNav or Simple FTL Calculator have ads?
Neither BMSNav nor Simple FTL Calculator shows ads.
Which is updated more often, BMSNav or Simple FTL Calculator?
BMSNav ships an update every 6 months, and Simple FTL Calculator every 2 months. Most recently, BMSNav was updated on September 11, 2026 and Simple FTL Calculator on July 5, 2026.

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