# ThreadFon Multi-Thread Calc — Metric,Inch,Pipe&Trap Threads > Calculates thread specifications for metric, inch, pipe, and trapezoidal threads. (iPhone/iPad app by Dmitriy Trofimov.) - Source: https://appshunter.io/ios/app/threadfon-multi-thread-calc/id1602169811 (this page in markdown: same URL + `.md`) - Developer: [Dmitriy Trofimov](https://appshunter.io/developer/1598378710) - Category: Productivity, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 43 MB - Languages: English - Released: 2021-12-29 - Data updated: 2026-07-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/threadfon-multi-thread-calc/id1602169811/reviews.md ## What is ThreadFon Multi? This application now supports ISO Metric, Unified Inch, Pipe, and Trapezoidal Thread Tolerances, providing detailed insights into the fundamental parameters of metric, inch, pipe, and trapezoidal cylindrical threads. Built on the ISO 965 standard, ASME/ANSI B1.1 standard, ISO 228, ANSI/ASME B1.20.1, ГОСТ 6357-81, and GOST 24737-81 standard. Designed for precision and ease, this tool helps you efficiently determine essential thread specifications for metric, unified inch, pipe, and trapezoidal threads. ## Key features - ISO Metric thread support - Unified Inch thread support - Pipe thread support - Trapezoidal thread support - Based on ISO 965 and ASME B1.1 standards - Determines fundamental thread parameters ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/threadfon-multi-thread-calc/id1602169811/reviews.md ### 1/5 — Не работает *2026-05-09, version 3.0.0* Перестало работать ### 5/5 — 👍 *2026-02-11, version 3.0.0* Пользовался только информацией по метрической резьбе. Очень удобное приложение. Рекомендую 👍 ### 5/5 — Супер приложение *2025-12-24, version 3.0.0* Супер приложение, помогает в работе ### 5/5 — Давно искал! *2025-10-21, version 3.0.0* Спасибо за такое приложение! Необходимо в работе! ### 5/5 — Приложение норм *2025-09-11, version 3.0.0* Добавьте, пожалуйста, UNC резьбы ### 4/5 — Не точные данные *2025-04-16, version 2.3.1* Есть приложение на андроид. Возьмите ту же резьбу м3 на 0.5 наружную 6е. У вас данные неправильные. А на андроиде правильные. Отличаются сильно. Из какого госта вы берете непонятно. ### 5/5 — Наконец-то на iOS появилось такое приложение . *2025-02-15, version 2.2.0* Но врет по высоте на метрике . 0,912 вместо 0,812 . ### 5/5 — Спасибо! *2025-02-11, version 2.2.0* Просто отличное приложение! Жду похожее по допускам посадкам ))) ### 3/5 — Приложение хорошее, но врёт на наружке *2022-12-29, version 1.0* М38х1,5 высота P 0,812. Но никак не 0,92 такой высоты нет вообще в резьбах ## Frequently asked questions about ThreadFon Multi ### What thread standards does ThreadFon Multi-Thread Calc support? ThreadFon Multi-Thread Calc supports ISO Metric, Unified Inch, Pipe, and Trapezoidal thread tolerances. It is built on standards including ISO 965, ASME/ANSI B1.1, ISO 228, ANSI/ASME B1.20.1, ГОСТ 6357-81, and GOST 24737-81. ### What kind of thread specifications can I determine with ThreadFon Multi-Thread Calc? You can efficiently determine essential thread specifications for metric, unified inch, pipe, and trapezoidal cylindrical threads, providing detailed insights into their fundamental parameters. ### Is ThreadFon Multi-Thread Calc available on Android? Based on the provided data, ThreadFon Multi-Thread Calc is available on iPhone, iPad, and iPod. Information regarding Android availability is not specified. ### How often is ThreadFon Multi-Thread Calc updated? The latest version, 3.0.0, was last updated on July 28, 2025. This indicates a recent update, suggesting the app is actively maintained. ### What is the user rating for ThreadFon Multi-Thread Calc? ThreadFon Multi-Thread Calc has a perfect rating of 5.0 stars from 1 rating, indicating a highly positive user experience from its initial reviews. ### Does ThreadFon Multi-Thread Calc have ads? No, ThreadFon Multi-Thread Calc does not contain advertisements. It is a completely ad-free application. ### What is the age rating for ThreadFon Multi-Thread Calc? ThreadFon Multi-Thread Calc has an age rating of 4+, making it suitable for a wide range of users, including children. ### Is ThreadFon Multi-Thread Calc free to use? Yes, ThreadFon Multi-Thread Calc is available for free. There are no costs associated with downloading or using its core functionalities. ## Version history (last 5 releases) ### 3.0.0 — 2025-07-28 Updated app engine for improved performance Enhanced server connection stability Fixed bugs and increased operating speed ### 2.3.1 — 2025-03-26 Added HSS drill size recommendations for ASME/ANSI B1.1 unified inch threads. ### 2.3.0 — 2025-03-01 Added Pipe Thread Support: Standards: ISO 228, ANSI/ASME B1.20.1, ГОСТ 6357-81 Full calculation of pipe thread parameters and tolerances ### 2.2.0 — 2025-01-27 Added Trapezoidal Thread Support: Users can now calculate and visualize trapezoidal thread tolerances. Performance Improvements: Enhanced app stability and responsiveness. Bug Fixes: Resolved various issues to ensure a smoother user experience. ### 2.1.0 — 2024-12-20 Unified Inch Thread according to ASME/ANSI B1.1 standard has been added. ## Apps similar to ThreadFon Multi | App | Rating | Price | Category | | --- | --- | --- | --- | | [Thread Calculator](https://appshunter.io/ios/app/thread-calculator/id1559560290) | 4.3 (13) | Free | Productivity | | [Bolt Length - (Nominal Length)](https://appshunter.io/ios/app/bolt-length-nominal-length/id1042345193) | 3.0 (2) | Free | Productivity | | [MechTab](https://appshunter.io/ios/app/mechtab/id553201101) | 4.1 (16) | Free | Productivity | | [The Phillips Machinist](https://appshunter.io/ios/app/the-phillips-machinist/id1046408069) | 4.6 (394) | Free | Productivity | | [Walter Feeds & Speeds](https://appshunter.io/ios/app/walter-feeds-and-speeds/id454963587) | 2.4 (8) | Free | Productivity | | [ISO Fits](https://appshunter.io/ios/app/iso-fits/id396863755) | 4.2 (6) | Free | Productivity | ## More apps by Dmitriy Trofimov - [Triangle Angles Calculator](https://appshunter.io/ios/app/triangle-angles-calculator/id1598378708) - [Tolerance Helper](https://appshunter.io/ios/app/tolerance-helper/id6745212628) - [Castoro — Sheet Cutting](https://appshunter.io/ios/app/castoro-sheet-cutting/id6757387540) All apps by Dmitriy Trofimov: https://appshunter.io/developer/1598378710 --- *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 2026-07-30.*