# BeltTune — Timing belt tension tool > Pocket-sized tool for professional belt tension measurement via audio analysis. (iPhone/iPad app by Justin Oakes.) - Source: https://appshunter.io/ios/app/belttune/id6739983384 (this page in markdown: same URL + `.md`) - Developer: [Justin Oakes](https://appshunter.io/developer/981204152) - Category: Utilities, Productivity - Price: $4.99 - Rating: 3.50/5 from 2 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 18.1 · 4 MB - Languages: American English, French (France), German (Germany), Italian, European Spanish - Released: 2025-01-08 - Data updated: 2026-08-27 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/belttune/id6739983384/reviews.md ## What is BeltTune? BeltTune brings professional-grade belt tension measurement to your pocket. Using advanced audio analysis, this powerful tool helps engineers, mechanics, and maintenance professionals ensure optimal belt installation and performance. KEY FEATURES: • Instant frequency measurement with real-time audio analysis • Support for multiple belt segments with individual measurements • Automatic frequency averaging for consistent results • Clean, intuitive interface designed for workshop environments • No external hardware required - just your iPhone's microphone PERFECT FOR: • Ferrari • Porsche 944/928 • Lotus Esprit • Ducati HOW IT WORKS: Simply tap and hold the "Listen" button, strike the belt to create a vibration, and BeltTune will instantly display the belt's natural frequency. Multiple measurements can be taken and averaged for enhanced accuracy, ensuring your belt installations meet manufacturer specifications every time. PROFESSIONAL ACCURACY: BeltTune utilizes sophisticated signal processing and harmonic analysis to deliver precise frequency measurements between 60-500 Hz, making it suitable for most industrial and automotive belt applications. Get BeltTune today and take the guesswork out of belt tension measurement. Your belts (and your machines) will thank you. ## Key features - Instant frequency measurement - Real-time audio analysis - Multiple belt segment support - Automatic frequency averaging - Intuitive workshop interface - No external hardware needed ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/belttune/id6739983384/reviews.md ### 1/5 — Scam app *2026-05-03* App doesn’t work really ### 1/5 — Nüschd! *2025-06-29* Funktioniert nicht wie erhofft! Nehmt euch mal ein einfaches trummeter her und schaut was das macht. Ich möchte nicht die frequenz ständig aktualisiert haben. Ich möchte das prägnante rausgefiltert nachdem ich den Gurt angeschlagen hab. ### 1/5 — Keine genaue Messung *2025-05-21* Leider keine genauen Messungen möglich, trotz mehrfacher Benutzung kommen unterschiedliche Werte von 107 MHz bis 239 MHz . 1 Punkt für die einfache Bedienung ## Frequently asked questions about BeltTune ### How does BeltTune measure belt tension? BeltTune uses your iPhone's microphone to listen to the vibration of the belt when struck. It then analyzes the audio frequencies to determine the belt's natural frequency, which is directly related to its tension. ### What is the price of BeltTune? BeltTune is a paid application, priced at $4.99. This one-time purchase grants you access to all its features for professional belt tension measurement. ### Does BeltTune have ads? No, BeltTune does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on its utility features. ### What devices is BeltTune compatible with? BeltTune is currently supported on iPhones. It leverages the iPhone's built-in microphone for its audio analysis functionality. ### How accurate is BeltTune? BeltTune utilizes sophisticated signal processing and harmonic analysis to deliver precise frequency measurements between 60-500 Hz. It also offers automatic frequency averaging for enhanced accuracy. ### When was BeltTune last updated? The latest version of BeltTune, 1.3, was last updated on September 12, 2025. This indicates ongoing development and support for the application. ### What is the age rating for BeltTune? BeltTune has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals interested in mechanical applications. ### Can BeltTune be used for industrial belts? Yes, BeltTune is suitable for most industrial and automotive belt applications, measuring frequencies between 60-500 Hz. Its professional accuracy makes it a versatile tool. ## Version history (last 4 releases) ### 1.4 — 2026-08-07 We rebuilt BeltTune from the ground up. Smarter Detection Engine — Completely reworked audio analysis delivers dramatically more accurate frequency readings, even in noisy garages and workshops. Harmonic filtering now tells the difference between your belt's true pitch and its overtones, so you get the right number every time. All-New Design — A cleaner, more intuitive interface makes tuning faster and easier to read at a glance. Spend less time squinting at numbers and more time getting your belt right. ### 1.3 — 2025-09-12 Belt Tune has up updated to take advantage of iOS 26 ### 1.2 — 2025-01-31 This version introduces support for external microphones ### 1.0 — 2025-01-08 No release notes. ## Apps similar to BeltTune | App | Rating | Price | Category | | --- | --- | --- | --- | | [TMconnect](https://appshunter.io/ios/app/tmconnect/id1635558471) | — | $4.99 | Utilities | | [Tension Meter Companion](https://appshunter.io/ios/app/tension-meter-companion/id6756591334) | — | Free | Utilities | | [SourDoughWaterTemperature](https://appshunter.io/ios/app/sourdoughwatertemperature/id6745718336) | — | Free | Utilities | | [Drill Bit Converter](https://appshunter.io/ios/app/drill-bit-converter/id1552080952) | — | $0.99 | Utilities | | [Beam: Stream Your Screen](https://appshunter.io/ios/app/beam-stream-your-screen/id6760154962) | — | Free | Utilities | | [M-JET Module](https://appshunter.io/ios/app/m-jet-module/id6757938177) | — | Free | Utilities | ## Related topics [belt tension calculator](https://appshunter.io/ios/topics/belt-tension-calculator) · [carbon drive belt tension tool](https://appshunter.io/ios/topics/carbon-drive-belt-tension-tool) · [belt tension](https://appshunter.io/ios/topics/belt-tension) --- *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 2026-08-27.*