# calculator MEL — ICAO MEL Compliance Tool > ICAO MEL compliance tool for instant UTC expiration date calculations. (iPhone/iPad app by KSENIYA DEMIDOVA.) - Source: https://appshunter.io/ios/app/calculator-mel/id1596606476 (this page in markdown: same URL + `.md`) - Developer: [KSENIYA DEMIDOVA](https://appshunter.io/developer/1595082340) - Category: Navigation, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 36 MB - Languages: American English - Released: 2021-12-09 - Data updated: 2026-07-08 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/calculator-mel/id1596606476/reviews.md ## What is calculator MEL? MEL Calculator - Your Essential ICAO Compliance Tool Calculate UTC expiration dates for ICAO Minimum Equipment List (MEL) categories instantly. Designed for aviation professionals who need quick, accurate MEL compliance tracking. KEY FEATURES INSTANT CALCULATIONS Real-time UTC date calculations for all 4 MEL categories. Shows exact expiration dates with timestamps. Displays days remaining for each category. Automatic recalculation when settings change. FULLY CUSTOMIZABLE Adjust delay values for Categories A, B, C, and D. Set custom days to match your aircraft procedures. Save settings for quick access. All preferences stored locally on your device. GLOBAL ACCESSIBILITY Available in 30 languages. Perfect for international aviation teams. Supports English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Portuguese, Hindi, and 20 more languages. Full localization of all interface elements. PERSONALIZED EXPERIENCE Light, dark, and system theme options. 12-hour and 24-hour time format support. Clean, intuitive Material Design interface. Smooth animations and transitions. PRIVACY FOCUSED No account or registration required. All data stored locally on your device. No personal information collected. Works offline - no internet required for calculations. WHO IS THIS FOR Commercial and private pilots. Aircraft maintenance crews. Flight operations managers. Aviation compliance officers. General aviation operators. Anyone working with ICAO MEL regulations. WHAT IS MEL The Minimum Equipment List (MEL) is an ICAO regulatory framework that defines which aircraft equipment can be inoperative while still allowing safe operations. The MEL Calculator helps you track compliance deadlines for four categories: Category A: Shortest delay (typically 3 days) Category B: Short delay (typically 10 days) Category C: Medium delay (typically 30 days) Category D: Longest delay (typically 120 days) WHY CHOOSE MEL CALCULATOR Accuracy: Eliminates manual calculation errors Efficiency: Instant results, no complex math Compliance: Ensures regulatory deadline tracking Flexibility: Customize to your specific needs Accessibility: Works anywhere, anytime, offline Free: Ad-supported to keep it free for everyone TECHNICAL DETAILS UTC timezone calculations (aviation standard). Persistent settings across app sessions. Material Design 3 interface. Optimized for all iPhone and iPad sizes. Regular updates and improvements. SUPPORT We are committed to providing the best MEL calculation tool for aviation professionals. If you have questions, suggestions, or need support, please contact us through the support URL. PRIVACY AND ADS This app contains advertisements to keep it free. We respect your privacy - no personal information is collected. All settings are stored locally on your device. For more details, see our Privacy Policy. Download MEL Calculator today and simplify your ICAO MEL compliance tracking. ## Key features - Instant UTC date calculations - Customizable delay values - Supports 30 languages - Light/dark/system themes - Offline functionality - Privacy-focused, no registration ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/calculator-mel/id1596606476/reviews.md ### 5/5 — 날짜 오류 *2026-02-20, version 14.0.0* 로컬 날짜가 넘어가면 UTC로 날이 넘어가지 않아도 날짜가 넘어갑니다 수정 부탁드립니다 !!! 너무 좋은 어플이에여 ### 1/5 — TIME AND DATE DO NOT MACH *2025-06-15, version 2* 사용시 LOC TIME은 6/15일이여도 MEL DEFER는 UTC여야하기에 6/14기준으로(로컬타임 9시 이전) 계산되어야함 기준시간을 설정하게 만들어주시던지 UTC기준시간으로 설정해주세요 ### 1/5 — An acceptable app bad app *2023-12-31* No good future for iLog use sorry ### 1/5 — Useless if calculating UTC *2023-06-16* App doesn’t calculate utc times automatically. It is based on the devices local clock. So if you requires a calculation based on the current UTC time then this is not the app for you. ## Frequently asked questions about calculator MEL ### How does calculator MEL calculate expiration dates? calculator MEL calculates UTC expiration dates for ICAO Minimum Equipment List (MEL) categories instantly. It displays exact expiration dates with timestamps and the number of days remaining for each category. ### Can I customize the delay values in calculator MEL? Yes, calculator MEL is fully customizable. You can adjust delay values for Categories A, B, C, and D to match your aircraft procedures and save these settings for quick access. ### Does calculator MEL work offline? Yes, calculator MEL works offline. No internet connection is required for calculations, making it accessible anywhere, anytime for aviation professionals. ### What languages does calculator MEL support? calculator MEL is available in 30 languages, including English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, Portuguese, and Hindi, with full localization of all interface elements. ### Does calculator MEL have ads? Yes, calculator MEL contains advertisements to keep it free for users. The app prioritizes user privacy and does not collect any personal information. ### Is calculator MEL suitable for international aviation teams? Absolutely. With support for 30 languages and offline functionality, calculator MEL is perfect for international aviation teams needing to track ICAO MEL compliance globally. ### What is the age rating for calculator MEL? calculator MEL has an age rating of 4+, making it suitable for a wide range of users. The app is designed with a clean, intuitive Material Design interface. ### How often is calculator MEL updated? The app was last updated on 2026-02-20 with version 14.0.0, indicating regular updates and improvements are provided to users. ## Version history (last 4 releases) ### 14.0.0 — 2026-02-20 Version 14.0.0 - Enhanced Localization and Performance NEW FEATURES Added support for 30 languages including Chinese, Japanese, Korean, Arabic, Hindi, and more. Improved language selection interface. Enhanced localization for all UI elements and month names. IMPROVEMENTS Optimized app performance and stability. Faster calculation engine. Improved memory management. Better compatibility with latest iOS versions. Enhanced user interface responsiveness. BUG FIXES Fixed minor UI inconsistencies. Resolved theme switching issues. Improved settings persistence. Fixed date formatting edge cases. Thank you for using MEL Calculator. If you find the app helpful, please leave us a review. ### 13.0.0 — 2026-02-08 We've improved the app with new features and enhancements: • Enhanced user experience with optimized performance • Bug fixes and stability improvements • Updated for the latest iOS version Thank you for using MEL Calculator! ### 2 — 2023-02-14 Improved application rendering and performance ### 1.0 — 2021-12-10 No release notes. ## Apps similar to calculator MEL | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pilot-Calculator](https://appshunter.io/ios/app/pilot-calculator/id6453560724) | — | $1.99 | Navigation | | [B4i - Coordinates Calculator](https://appshunter.io/ios/app/b4i-coordinates-calculator/id915366768) | 3.5 (2) | Free | Navigation | | [Vnav4+](https://appshunter.io/ios/app/vnav4-plus/id6478510518) | 5.0 (1) | Free | Navigation | | [Sail Calculator](https://appshunter.io/ios/app/sail-calculator/id1477713078) | 5.0 (2) | $0.99 | Navigation | ## More apps by KSENIYA DEMIDOVA - [Калькулятор потолка](https://appshunter.io/ios/app/id1596724303) - [Calculator area](https://appshunter.io/ios/app/calculator-area/id1619542459) - [Workdays calculator](https://appshunter.io/ios/app/workdays-calculator/id1629215374) - [Color timer](https://appshunter.io/ios/app/color-timer/id1631392460) - [Easy repeater](https://appshunter.io/ios/app/easy-repeater/id6444064186) All apps by KSENIYA DEMIDOVA: https://appshunter.io/developer/1595082340 --- *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 2026-07-08.*