# BLR Limits — Crew FDP Calculator > Flight Duty Period calculator for pilots, referencing operator and regulatory schemes. (iPhone/iPad app by Oliver Buterbaugh.) - Source: https://appshunter.io/ios/app/blr-limits/id6477339119 (this page in markdown: same URL + `.md`) - Developer: [Oliver Buterbaugh](https://appshunter.io/developer/1729040302) - Category: Reference, Education - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 22 MB - Languages: American English - Released: 2024-02-12 - Data updated: 2026-09-02 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/blr-limits/id6477339119/reviews.md ## What is BLR Limits? Calculate your Flight Duty Period limits and push-by times instantly. BLR Limits cross-references operator and regulatory schemes to give you clear, side-by-side limit cards for every crew configuration - so you always know when the clock runs out. Key Features: • Side-by-side operator and regulatory limit cards for two, three, and four crew configurations • Push-by times calculated from your report time, block hours, taxi, and sector count • Colour-coded urgency - green, yellow, orange, and red as deadlines approach • Full audit trail for every calculation - see exactly how each limit was derived, step by step • Flag any calculation you believe is incorrect, directly from the audit view • Favourite routes for quick access • Calculation history - tap a recent route to reload it instantly • Supports acclimatisation status, rest class, and pre-report rest inputs • Dark mode interface designed for the flight deck Currently supported Schemes: • BAW operator limits • EASA FTL regulatory limits Disclaimer: Independent FDP calculator for pilots. Not affiliated with, endorsed by, or connected to EASA, the UK CAA, or any other regulatory or operator body. This app is for educational and reference purposes only. All operational decisions must be based on approved company manuals and official documentation. The developer assumes no liability for operational use of calculated values. ## Key features - Side-by-side operator and regulatory limit cards - Instant push-by time calculation - Color-coded urgency indicators - Full audit trail for calculations - Favorite routes and calculation history - Supports acclimatization and rest inputs - Dark mode interface ## Frequently asked questions about BLR Limits ### What is BLR Limits? BLR Limits is an independent Flight Duty Period (FDP) calculator designed for pilots. It helps you instantly calculate FDP limits and push-by times by cross-referencing operator and regulatory schemes. ### What schemes does BLR Limits support? Currently, BLR Limits supports BAW operator limits and EASA FTL regulatory limits. The app is for educational and reference purposes only and is not affiliated with any regulatory or operator body. ### How does BLR Limits help with push-by times? Push-by times are calculated directly from your report time, block hours, taxi time, and sector count. This provides clear deadlines as they approach. ### Does BLR Limits have ads? No, BLR Limits does not contain advertisements. It is a free application focused on providing essential calculations for pilots. ### Can I save my routes in BLR Limits? Yes, BLR Limits allows you to favorite routes for quick access. It also keeps a calculation history, letting you tap a recent route to reload it instantly. ### What devices is BLR Limits available on? BLR Limits is available on iPhone and iPad devices. It features a dark mode interface designed for use on the flight deck. ### How often is BLR Limits updated? The latest version of BLR Limits is 1.2.0, last updated on March 15, 2026. Updates typically focus on improving functionality and expanding supported schemes. ### What is the user rating for BLR Limits? BLR Limits has a high user rating of 5.0 stars from 2 ratings, indicating strong user satisfaction with its functionality and ease of use. ## Version history (last 5 releases) ### 1.2.0 — 2026-03-15 UI Overhaul • Completely redesigned UI • Flight inputs and limit cards now side-by-side on iPad for intuitive and quick calculation • View scheme tables directly • Built with Liquid Glass for iOS 26 Other fixes • App now reflects new down-route briefing times and exceptions as per FAN 174/24 • Patched bug not recognising certain routes ### 1.1.4 — 2024-08-24 • New App icons to match your fleet • IATA codes now autocomplete based on frequent usage • Additional warnings such as BLR exceeding EASA • Minor visual improvements ### 1.1.3 — 2024-08-18 • Switch between managing times in zulu or local • Live countdown is now timezone-aware • You can now copy the calculations to clipboard for sharing ### 1.1.2 — 2024-08-16 • Fixed visual bugs ### 1.1.1 — 2024-08-16 • Bug fixes ## Apps similar to BLR Limits | App | Rating | Price | Category | | --- | --- | --- | --- | | [Aviation4SA Platinum](https://appshunter.io/ios/app/aviation4sa-platinum/id1522275644) | — | Free | Reference | | [FlightXtract](https://appshunter.io/ios/app/flightxtract/id6746723061) | — | Free | Reference | | [FDPme](https://appshunter.io/ios/app/fdpme/id6751309930) | 5.0 (2) | $1.99 | Reference | ## More apps by Oliver Buterbaugh - [Carvoyant](https://appshunter.io/ios/app/carvoyant/id6480128871) - [The Jersey Parking App](https://appshunter.io/ios/app/the-jersey-parking-app/id6744935681) - [carparks.je](https://appshunter.io/ios/app/carparksje/id6761196258) All apps by Oliver Buterbaugh: https://appshunter.io/developer/1729040302 --- *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 2026-09-02.*