--- title: "Audiofile Calc - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The audio engineering calculator you've relied on for years — completely reimagined. Audiofile Calc has been rebuilt from the ground up with a modern interface, ergonomic controls, and a new Calc Pro" --- # Audiofile Calc — United States > Audio Engineering Calculators ![Audiofile Calc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/dc/a1/ec/dca1ec65-2b1d-95d5-7fc4-f8606019037e/AppIcon-0-1x_U007epad-0-1-85-220-0.png/434x0w.png) **Developer:** [Audiofile Engineering](https://apptail.io/developer/audiofile-engineering-Sywb) **Category:** Music **Rating:** 4.5/5 (13 ratings) **Price:** Free **Bundle ID:** com.audiofile.backlinecalc **Store:** Apple App Store **Country:** United States **Version:** 4.3 (released 2026-06-11) **Original Release:** 2009-12-04 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id337547274) **AppTail Page:** [https://apptail.io/app/audiofile-calc-CDEe/united-states](https://apptail.io/app/audiofile-calc-CDEe/united-states) ## Audiofile Calc Description The audio engineering calculator you've relied on for years — completely reimagined. Audiofile Calc has been rebuilt from the ground up with a modern interface, ergonomic controls, and a new Calc Pro tier that takes your calculations further. FREE CALCULATORS Length – Note Length – Bar Length – Song Length – Beats to Tempo – Time to Samples – Samples to Time – Compare Tempos – Change Tempo – Sum Times – Subtract Times Pitch – Note Name to Frequency / MIDI / Wavelength – MIDI Note to Frequency / Note Name / Wavelength – Frequency to Note Name / MIDI / Wavelength – Wavelength to Frequency / Note Name / MIDI Timecode – Frames to Timecode – Convert Timecode – Change Timecode Electric – Compare Power – Compare Voltage Acoustics – Distance to Time – Time to Distance – Sound Pressure Level (SPL) – Panning Files – File Size CALC PRO — $9.99 one-time Unlock a suite of advanced calculators built for professional engineers and producers: – LUFS Target — streaming loudness compliance for Spotify, Apple Music, YouTube, and broadcast (EBU R128) – Nyquist Frequency — sample rate requirements, aliasing thresholds, anti-aliasing filter cutoffs – Equal Loudness — Fletcher-Munson curves, equal-loudness compensation – Cable Attenuation / Impedance — signal loss over cable runs, impedance matching – Batch Conversion — sweep values through any calculator simultaneously – PDF Share — export any calculation as a clean, professional PDF ready for clients, session notes, or technical documentation One-time purchase. No subscription. No tricks. Audiofile is a boutique technology company building precision tools for the world's musicians and engineers. ## Audiofile Calc Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/24/6d/d6/246dd6fc-3430-bb89-20ae-74d4fadfd323/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-11_at_13.25.08.png/2048x2732.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a8/84/42/a88442a2-0b8a-0d5e-bbfd-1ab22695aca0/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-18_at_15.10.52.png/2048x2732.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/04/79/0b/04790b7e-0271-08d9-d092-080b8dd5de85/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-11_at_13.29.03.png/2048x2732.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ab/2a/f5/ab2af580-a322-0719-95c3-40272834d9f7/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-11_at_13.30.25.png/2048x2732.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/69/83/dd/6983ddbc-e1f3-6e4b-1ac2-1762e92b4059/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-18_at_15.12.28.png/2048x2732.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f0/a5/25/f0a525b2-4c50-555d-d934-3998353b52aa/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-18_at_15.13.04.png/2048x2732.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9e/40/ad/9e40ad65-c962-57ad-d85c-01236bc8e1eb/Simulator_Screenshot_-_iPad_Air_13-inch__U0028M3_U0029_-_2026-03-11_at_14.01.45.png/2048x2732.png) ## Audiofile Calc Rating Breakdown in United States - 5 stars: 10 (77%) - 4 stars: 1 (8%) - 3 stars: 1 (8%) - 2 stars: 1 (8%) - 1 stars: 0 (0%) ## Audiofile Calc Reviews in United States ### ***** "Great app" I (try) to make music. Mostly sample based, "boom bap" hip hop type stuff. While I (try) to make the music based on the feel, vibe, and "using my ear"; my more math oriented/logic brain often trumps the other. So this is a great app that I use quite a bit, when that part of my brain is winning over the other. In certain situations. Would looove to see a "pitch shift bpm loop calculator" feature added though. What I mean by that is a calculator that solves for X. Where X would be the number of semitones a loop of 100 bpm needs to be shifted, to make the loop 110 bpm instead. As an example. Or vice versa, etc etc... -- Tom-J-Lael, 2022-03-31 ### ***** "Really useful app" Instantly helped me trouble shoot a problem. A couple of the parameters are the bottom of the screen can’t be adjusted easily because of a UX issue but otherwise fantastic -- xjoshbrown, 2021-11-15 ### ***** "Incredibly useful! Now compatible with the current iOS. Get it!" This app is fantastic. Absolutely indispensable. Thank you so much for a wonderful app!! -- Lutzbone, 2021-01-26 ### **--- "File Size calculation is wrong" Calculations with 32-bit depth are wrong. -- evan.olcott, 2019-01-13 ### ***-- "Great app" I’ve had it in the past on previous devices. It comes in handy more than I thought. But the numeric input is not functional in this version on my iPhone X. -- 818Pnice, 2018-10-17 ### ****- "Where's the 64-Bit Version?" 32-bit apps will no longer work with the upcoming IOS 11. Are we dead in the water? -- Drely, 2017-06-06 ### ***** "Not working with iOS10" Not currently working with the new operating system. I use this app all the time and would love to see a compatible update. Thanks! -- likeclockwork.net, 2016-09-26 ### ****- "An excellent workflow tool" While there are many apps and programs available to do this kind of calculations, there are none that I am aware of which combine so many great studio workflow enhancement tools together in on handy package. I suspect this will become an invaluable bit of kit in the studio and live. A brilliant bit of design by an excellent team. Cheers! -- Sigod, 2016-04-01 ### ***** "Not working with iOS 9.0!!!" Love the app, but not working with iOS 9.0! Update***** With iOS 9.1 installed, the app is running again like normal again! Amazing free application for audio engineers😊 -- Vincent321985, 2015-10-22 ### ***-- "Great idea, but a few nagging problems." This is a great idea for an app, and it works fine; however, there are a few problems that should be addressed. For example, the Compare Voltage function only allows whole numbers. Since a lot of audio work involves referencing +4dBu (~1.23 V), it seems obvious to include at least two decimal places. Similarly, the Distance to Time function doesn't allow you to put any info about temperature or air pressure (remembering that our atmosphere is not an ideal gas). With a few refinements, this would be a 5 star app. -- Hgguoyfdfdfhiedfgkccfjhdah, 2015-08-31 [View all Audiofile Calc reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Audiofile Calc In-App Purchases | Item | Price | |------|-------| | Audiofile Calc Pro | $4.99 | ## Audiofile Calc Discovered Keywords - audiofile calc ## Apps Similar to Audiofile Calc - [MixTape Calculator](https://apptail.io/app/mixtape-calculator-tdje/united-states) - [Studio Calculator](https://apptail.io/app/studio-calculator-kiPe/united-states) - [PitchSetCalc](https://apptail.io/app/pitchsetcalc-lLmf/united-states) - [MusicMath](https://apptail.io/app/musicmath-RrYf/united-states) - [AudioGrafik](https://apptail.io/app/audiografik-Advv/united-states) - [ZAO Release-Time Calculator](https://apptail.io/app/zao-release-time-calculator-FgLv/united-states) - [Pulser BPM Calculator](https://apptail.io/app/pulser-bpm-calculator-twCw/united-states) - [Audio Check Mate](https://apptail.io/app/audio-check-mate-dBEw/united-states) ## Audiofile Calc Available In - [United States](https://apptail.io/app/audiofile-calc-CDEe/united-states) - [Japan](https://apptail.io/app/audiofile-calc-CDEe/japan) - [Germany](https://apptail.io/app/audiofile-calc-CDEe/germany) - [United Kingdom](https://apptail.io/app/audiofile-calc-CDEe/united-kingdom) - [Russia](https://apptail.io/app/audiofile-calc-CDEe/russia) - [Italy](https://apptail.io/app/audiofile-calc-CDEe/italy) - [Denmark](https://apptail.io/app/audiofile-calc-CDEe/denmark) - [Sweden](https://apptail.io/app/audiofile-calc-CDEe/sweden) - [Argentina](https://apptail.io/app/audiofile-calc-CDEe/argentina) - [Poland](https://apptail.io/app/audiofile-calc-CDEe/poland) - [Austria](https://apptail.io/app/audiofile-calc-CDEe/austria) - [Switzerland](https://apptail.io/app/audiofile-calc-CDEe/switzerland) - [Singapore](https://apptail.io/app/audiofile-calc-CDEe/singapore) - [South Korea](https://apptail.io/app/audiofile-calc-CDEe/south-korea) - [Brazil](https://apptail.io/app/audiofile-calc-CDEe/brazil) - [China](https://apptail.io/app/audiofile-calc-CDEe/china) - [Türkiye](https://apptail.io/app/audiofile-calc-CDEe/turkey) - [Colombia](https://apptail.io/app/audiofile-calc-CDEe/colombia) - [Czechia](https://apptail.io/app/audiofile-calc-CDEe/czechia) - [Hong Kong SAR China](https://apptail.io/app/audiofile-calc-CDEe/hong-kong) - [United Arab Emirates](https://apptail.io/app/audiofile-calc-CDEe/united-arab-emirates) - [Mexico](https://apptail.io/app/audiofile-calc-CDEe/mexico) - [Australia](https://apptail.io/app/audiofile-calc-CDEe/australia) - [Netherlands](https://apptail.io/app/audiofile-calc-CDEe/netherlands) - [Norway](https://apptail.io/app/audiofile-calc-CDEe/norway) - [New Zealand](https://apptail.io/app/audiofile-calc-CDEe/new-zealand) - [Ireland](https://apptail.io/app/audiofile-calc-CDEe/ireland) - [Israel](https://apptail.io/app/audiofile-calc-CDEe/israel) - [Latvia](https://apptail.io/app/audiofile-calc-CDEe/latvia) - [Madagascar](https://apptail.io/app/audiofile-calc-CDEe/madagascar) - [Malta](https://apptail.io/app/audiofile-calc-CDEe/malta) - [Mauritius](https://apptail.io/app/audiofile-calc-CDEe/mauritius) - [Malaysia](https://apptail.io/app/audiofile-calc-CDEe/malaysia) - [Nigeria](https://apptail.io/app/audiofile-calc-CDEe/nigeria) - [Peru](https://apptail.io/app/audiofile-calc-CDEe/peru) - [Philippines](https://apptail.io/app/audiofile-calc-CDEe/philippines) - [Pakistan](https://apptail.io/app/audiofile-calc-CDEe/pakistan) - [Portugal](https://apptail.io/app/audiofile-calc-CDEe/portugal) - [Romania](https://apptail.io/app/audiofile-calc-CDEe/romania) - [Saudi Arabia](https://apptail.io/app/audiofile-calc-CDEe/saudi-arabia) - [Slovakia](https://apptail.io/app/audiofile-calc-CDEe/slovakia) - [Senegal](https://apptail.io/app/audiofile-calc-CDEe/senegal) - [Thailand](https://apptail.io/app/audiofile-calc-CDEe/thailand) - [Tunisia](https://apptail.io/app/audiofile-calc-CDEe/tunisia) - [Taiwan](https://apptail.io/app/audiofile-calc-CDEe/taiwan) - [Ukraine](https://apptail.io/app/audiofile-calc-CDEe/ukraine) - [Vietnam](https://apptail.io/app/audiofile-calc-CDEe/vietnam) - [South Africa](https://apptail.io/app/audiofile-calc-CDEe/south-africa) - [Armenia](https://apptail.io/app/audiofile-calc-CDEe/armenia) - [Azerbaijan](https://apptail.io/app/audiofile-calc-CDEe/azerbaijan) - [Barbados](https://apptail.io/app/audiofile-calc-CDEe/barbados) - [Belgium](https://apptail.io/app/audiofile-calc-CDEe/belgium) - [Bahrain](https://apptail.io/app/audiofile-calc-CDEe/bahrain) - [Bermuda](https://apptail.io/app/audiofile-calc-CDEe/bermuda) - [Belarus](https://apptail.io/app/audiofile-calc-CDEe/belarus) - [Belize](https://apptail.io/app/audiofile-calc-CDEe/belize) - [Canada](https://apptail.io/app/audiofile-calc-CDEe/canada) - [Chile](https://apptail.io/app/audiofile-calc-CDEe/chile) - [Dominican Republic](https://apptail.io/app/audiofile-calc-CDEe/dominican-republic) - [Algeria](https://apptail.io/app/audiofile-calc-CDEe/algeria) - [Ecuador](https://apptail.io/app/audiofile-calc-CDEe/ecuador) - [Egypt](https://apptail.io/app/audiofile-calc-CDEe/egypt) - [Spain](https://apptail.io/app/audiofile-calc-CDEe/spain) - [Finland](https://apptail.io/app/audiofile-calc-CDEe/finland) - [France](https://apptail.io/app/audiofile-calc-CDEe/france) - [Greece](https://apptail.io/app/audiofile-calc-CDEe/greece) - [Croatia](https://apptail.io/app/audiofile-calc-CDEe/croatia) - [Hungary](https://apptail.io/app/audiofile-calc-CDEe/hungary) - [Indonesia](https://apptail.io/app/audiofile-calc-CDEe/indonesia) - [India](https://apptail.io/app/audiofile-calc-CDEe/india) - [Iceland](https://apptail.io/app/audiofile-calc-CDEe/iceland) - [Jamaica](https://apptail.io/app/audiofile-calc-CDEe/jamaica) - [Kuwait](https://apptail.io/app/audiofile-calc-CDEe/kuwait) - [Kazakhstan](https://apptail.io/app/audiofile-calc-CDEe/kazakhstan) - [Lebanon](https://apptail.io/app/audiofile-calc-CDEe/lebanon) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*