# ALPA Part 117 Calculator > Pilot calculator for flight time, duty, and rest under FAR Part 117. (iPhone/iPad app by Air Line Pilots Association, International.) - Source: https://appshunter.io/ios/app/alpa-part-117-calculator/id720288196 (this page in markdown: same URL + `.md`) - Developer: [Air Line Pilots Association, International](https://appshunter.io/developer/561681760) - Category: Utilities, Productivity - Price: Free - Rating: 1.39/5 from 44 App Store ratings · 50 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 19 MB - Languages: English - Released: 2013-10-12 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/alpa-part-117-calculator/id720288196/reviews.md ## What is ALPA Part 117 Calculator? The ALPA Part 117 Flight Time Duty Time calculator assists pilots in determining their rest period, max duty day and max flight time based on individual criteria entered by the pilot. The App also includes the FAR Part 117 Regulation and ALPA’s Part 117 Guide. ## Key features - Rest period calculation - Max duty day calculation - Max flight time calculation - FAR Part 117 Regulation access - ALPA Part 117 Guide access ## Recent user reviews (10 of 50) All indexed reviews: https://appshunter.io/ios/app/alpa-part-117-calculator/id720288196/reviews.md ### 1/5 — Broken *2022-02-18, version 2.0.4* Doesn’t work now. Immediately crashes since update. Please fix it. ### 4/5 — Works now *2021-10-21, version 2.0.4* Write the app so pilot could use flight plan info to calculate latest time off for duty time. Scheduled departure and arrival is usually legal (this app calculates this). But delayed departure with known flight time, debrief etc. is what this app should calculate. (it does not calculate it without a new flight plan, usually not the case for delayed departure). Current form is not useful. October 2021. I tried the app again after seeing other pilot to use, and it appears to work well. The questions and answers are good, please add simple link to this page in the app. Also, it appears that entering in local time is easier to understand, simple conversion should be explain (like the one in the FAQ), e.g. ATL based (eastern time zone) reporting in SEA at 07:00 (pacific time zone), enter 10:00 - local ATL time at report. Thanks for improving and working on the app. ### 1/5 — Worst app in the universe *2021-08-08, version 2.0.4* This doesn’t work ### 1/5 — Terrible waste of ALPA resources. *2020-01-10, version 2.0.4* Hello ALPA, we pay you millions of dollars a year in dues and this is the best you can do? Almost worse than the Company’s IT department. Time for a significant upgrade. There also should be an easy place to set the time you came off your last 30 hours of rest and calculate the 168 hours. ### 2/5 — Bad app *2019-12-24, version 2.0.3* The last update caused all the scales to disappear. So you can’t set date or time zone. Needs to get fixed ### 1/5 — Poor *2019-12-02, version 2.0.2* Lost all the data. I think we pay plenty in union dues to get an app that works. ### 1/5 — ALPA flops again *2019-10-21, version 2.0.2* Another fine representation of our dues in “inaction”. ### 1/5 — Doesn't Work *2019-10-11, version 2.0.2* After iOS 13, app crashes while imputing flight data. Now worthless. Needs a fix ASAP. I expect more from “my union” ### 1/5 — Waste of time *2019-09-07, version 2.0.2* Another ALPA failure. Why are we supporting ALPA national with our paychecks? Complete waste of time and 2% of MY paycheck down the toilet. We required a last minute FAR117 calculation prior to push... Thanks for nothing ALPA! ### 1/5 — Terrible app *2019-08-07, version 2.0.2* The app crashes or must be re-booted several times. My dues money should buy a better app. ## Frequently asked questions about ALPA Part 117 Calculator ### What does the ALPA Part 117 Calculator do? This application assists pilots in calculating their rest periods, maximum duty days, and maximum flight times. It bases these calculations on individual criteria entered by the pilot, ensuring compliance with aviation regulations. ### What regulations are included in the app? The app includes the full text of the FAR Part 117 Regulation, which governs flight and duty time limitations for pilots. It also provides access to ALPA’s Part 117 Guide, offering additional insights and interpretations. ### Is this app free to use? Yes, the ALPA Part 117 Calculator is available for free. There are no in-app purchases or advertisements mentioned, making it a completely free resource for pilots. ### Who is the target audience for this app? The primary audience for this app is pilots who are required to adhere to the Federal Aviation Regulations (FAR) Part 117. This includes commercial pilots, airline pilots, and any other aviators operating under these specific flight and duty time rules. ### How does the app help pilots with their schedules? By inputting personal flight and duty parameters, pilots can accurately determine their legal rest periods, maximum allowable duty day, and maximum flight time. This helps prevent fatigue and ensures compliance with safety regulations. ## Version history (last 1 release) ### 2.0.4 — 2019-12-27 Fixed date and time zone picker text not visible when dark mode is enabled on the device. ## Apps similar to ALPA Part 117 Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Logbook Pro Flight Logbook](https://appshunter.io/ios/app/logbook-pro-flight-logbook/id410773111) | 4.6 (1,689) | Free | Utilities | | [uAvionix skyBeacon Installer](https://appshunter.io/ios/app/uavionix-skybeacon-installer/id1291016785) | 4.4 (5) | Free | Utilities | | [CRJ Virtual Panel](https://appshunter.io/ios/app/crj-virtual-panel/id1506804239) | 4.0 (5) | $14.99 | Utilities | | [WBAT Mobile](https://appshunter.io/ios/app/wbat-mobile/id1253459968) | — | Free | Utilities | | [FBOlink - Messaging](https://appshunter.io/ios/app/fbolink-messaging/id1329221786) | 3.6 (12) | Free | Utilities | | [E-JETS Virtual Panel](https://appshunter.io/ios/app/e-jets-virtual-panel/id1350627457) | 4.9 (88) | $19.99 | Utilities | ## More apps by Air Line Pilots Association, International - [ALPA Mobile](https://appshunter.io/ios/app/alpa-mobile/id423642917) - [ALPA Events](https://appshunter.io/ios/app/alpa-events/id1389930386) - [ALPA ASF](https://appshunter.io/ios/app/alpa-asf/id6654918124) All apps by Air Line Pilots Association, International: https://appshunter.io/developer/561681760 --- *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 2026-06-10.*