--- title: "KeyTuner - Reviews, Revenue and Downloads in United States | Apple App Store" description: "KeyTuner is a full-range accurate and easy to use chromatic tuner that gives clear feedback with a visual design that makes maximum use of the screen. A consistent horizontal display for fine and coar" --- # KeyTuner — United States > Precision Instrument Tuner ![KeyTuner App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/f3/b4/ae/f3b4aec3-51a3-da71-1eef-d8eddf339795/TunerIcon-0-0-1x_U007emarketing-0-0-0-7-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/434x0w.png) **Developer:** [TimperLabs](https://apptail.io/developer/timperlabs-CMub) **Category:** Music **Rating:** 4.7/5 (1,561 ratings) **Price:** Free **Bundle ID:** com.timperlabs.tuner **Store:** Apple App Store **Country:** United States **Version:** 2.1.1 (released 2021-04-12) **Original Release:** 2018-02-19 **Languages:** English, Japanese, Chinese **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1328712601) **AppTail Page:** [https://apptail.io/app/keytuner-vKn/united-states](https://apptail.io/app/keytuner-vKn/united-states) ## KeyTuner Description KeyTuner is a full-range accurate and easy to use chromatic tuner that gives clear feedback with a visual design that makes maximum use of the screen. A consistent horizontal display for fine and coarse tuning allows easy tracking of the needle as a note is played. The display is suitable for both tuning and intonation practice. Quick mode provides fast confirmation in live situations. Tone generation is also supported for droning. An advanced digital algorithm is used to allow precise tuning of all instruments (strings, woodwinds, brass, plucked string, etc). Many tuners have difficulty with low registers or those with many overtones but KeyTuner employs algorithms specifically aware of harmonic distributions. By taking advantage of the real-time behavior of multiple waveforms, vibrato can be detected and is shown as a highlighted region around the needle. Features: - Accuracy of 0.1 cent (0.001 semitone) - Works with all instruments from A0 to C8 - Large easy-to-read meter for fine tuning - Space efficient display for coarse tuning - Quick mode for easy adjustments - Color schemes: Light, Warm, Dark - 3 levels of needle dampening to control responsiveness - Temperament selection: Just, Equal-Tempered, Strings - Supports transposing instruments - Tone/drone generation - Concert Pitch (A4) calibration ## KeyTuner Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource113/v4/61/c9/5b/61c95bc9-7816-705c-1add-4311e1531a7c/7e728d07-b1b6-49b4-83ca-56f10e7f675c_1.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/8d/1e/5d/8d1e5dc2-bb8e-9f0f-d916-bfdf2a0f2378/pr_source.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple123/v4/dc/68/ba/dc68ba4c-33bc-76ff-102b-80f2a784064b/pr_source.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/03/2b/44/032b442b-c001-379a-0eb2-3194b517872b/pr_source.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/45/4d/fb/454dfb09-1c26-1d90-bec6-7e2117c69d42/pr_source.png/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple113/v4/29/c0/f4/29c0f430-1071-6ee5-c0df-d03ce668f99c/pr_source.png/1242x2688.png) ## KeyTuner Rating Breakdown in United States - 5 stars: 1,317 (84%) - 4 stars: 152 (10%) - 3 stars: 40 (3%) - 2 stars: 18 (1%) - 1 stars: 34 (2%) ## KeyTuner Reviews in United States ### ***** "One of the best free piano tuner." As a DIY amateur pianist and father of two young piano learners at home, this is the must have app I would recommend to beginner DIY piano tuners. -- AleksYuan, 2025-07-16 ### ***** "Great tuner" This is a really great tuner. I use it for several different stringed instruments. Highly recommend. -- TheOtherAaron, 2025-06-18 ### ***** "Great Tuner" This tuner is better than my tuning devices (all 6 of them). -- Unxed457, 2025-01-29 ### ***** "Excellent Tuner" Settings for different instruments, cents ranges can be set, other great options. Highly recommended by a retired piano tuner and band director. Even though it does not do the octave stretching required to tune pianos well, it does everything else So Well. -- rcwaldhorn, 2025-01-28 ### ***** "One Of The Best" Very good & pretty much on the money.👍 -- Cj-850, 2025-01-08 ### ***** "Life Saver" Simple tuner, practical. I recommend this tuner app. -- Poetinstagramer, 2024-12-09 ### ***** "ME.🤍." AWESOME.🤍.🤍.🤍.🤍.🤍. -- XPA.D., 2024-10-15 ### ***** "Smooth" Some good tuners out there but I find this one to the easiest to dial in. -- Helix43, 2024-09-27 ### ***-- "Amazing!" Extremely easy to use, but extremely precise for each tuning. Highly recommended. -- Scanit0, 2024-07-20 ### ***** "What a wonderful tuner!!!" I downloaded this app to tune my wife’s upright piano she had since a child, wow is all I can say! The tuner actually works with a multitude of instruments and so intuitive to use. The one thing I would like to see is auto select for flat and sharp notes instead of switching between but definitely not a deal breaker! And being free with no ads as of yet is so nice. Now I can use one app to tune my guitar, banjo, my wife’s piano and my sons Cello! So thankful for such an amazing tuner app! -- electrowolfe, 2024-07-17 ### ***** "Best tuner for cello, French horn, and harp" Oml this is the best tuner. Period. -- >_< -_-, 2024-05-15 ### ***** "The most accurate tuning app I’ve tried" I have used lots of tuning apps.This one is the easiest to use and the most accurate. -- TFMViolin, 2024-04-05 ### **--- "Incorrect" I have perfect pitch. It is always a half note down from the real note. -- PotatoPishee, 2024-02-10 ### ***** "Excellent Tuner" Settings for different instruments, cents ranges can be set, other great options. Highly recommended by a retired piano tuner and band director. Even though it does not do the octave stretching required to tune pianos well, it does everything else So Well. -- rcwaldhorn, 2024-01-30 ### ***** "Best tuner ever plus no more 1032 hearing aid batteries" I love this tuner and the fact that it has a micro range for fine-tuning. I use it on all of my instruments, guitar, mandolin and octave mandolin for many years I have used the clamp on tuners that take batteries. they’re always dead and not particularly accurate. Plus they’re hard to read with KeyTuner on your iPad, I iPad mini or phone, you have an accurate easy use always ready tuner. I’ve recommended this to many of my fellow musicians (the ones that like to be in tune). -- ngmcin, 2024-01-27 ### ***** "Easy and trustworthy" Turn it on (open the app) select the instrument. Tune. Done Now PRACTICE and make beautiful music. -- yevraht, 2024-01-13 ### ***** "Very good tuner!" As a lifelong musician and a professional accordion tuner for the last 15 years, I have used many tuners and apps. This one is the best and it even has an accordion algorithm. Some of the more expensive tuners don’t even approach the practicality of this app because they don’t show cents! What’s up with that?! Anyway, this is an infinitely useful app. Thank you! -- mikeybully, 2024-01-09 ### ***** "Great tuner" Like others, I have tried many other tuners. This one works for me. I tune my harpsichord with it, using A=415. It is great! -- sdb19711, 2023-12-19 ### *---- "Set pitch with mic broken" You dan’t turn this off and will set any pitch it hears from 400-500 Hz as A making this tuner useless as it keeps changing and you can’t set at 440Hz because the tuner will automatically adjust -- Dragonvaleplayer-5month, 2023-10-20 ### ***** "A#??" Is this tuner picking up AI interferences.... making no sound but it picks up an A#; what is up with this? I cannot use this app as it is not showing the frequency of A at the get go. When I sing in to adjust I see change of pitch restering but in stillness it is an A#. Way weird. Heard back and it was explained to me there is a frequency in the room thst is picked up at first. This was helpful and confirmed my having been 'picking up' frequency (something empathic I have been so since childhood) so, must try to find out where it is born from... I learned the state of Hawaii had HELCO put in smart meters which may be affecting me.... it has been an undercurrent of sound since the change. So, I have changed my star rating -obviously this app is quite a 'sensitive' too. Thank you for responding to my inquiry. I'll give it a go again taking your advice. -- RLRLS, 2023-10-13 [View all KeyTuner reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews) ## KeyTuner Store Rankings | Chart | Country | Category | Rank | |-------|---------|----------|------| | Top Free | China | Music | #192 | | Top Free | Japan | Music | #237 | | Top Free | Finland | Music | #408 | | Top Free | Ireland | Music | #441 | | Top Free | Algeria | Music | #463 | ## KeyTuner Discovered Keywords - instuner free - tune labs - key detect - music keys - pitched tuner - instuner - auto sound pitch detection - istrobosoft - peterson tuners - metronome violin ## Apps Similar to KeyTuner - [Pano Tuner Lite](https://apptail.io/app/pano-tuner-lite-Pwb/united-states) - [Tuner T1](https://apptail.io/app/tuner-t1-Byb/united-states) - [Tuner Lite by Piascore](https://apptail.io/app/tuner-lite-by-piascore-iwd/united-states) - [Fine Tuner - Chromatic Tuner](https://apptail.io/app/fine-tuner-chromatic-tuner-nYe/united-states) - [Pitched Tuner - Tuning App](https://apptail.io/app/pitched-tuner-tuning-app-jsr/united-states) - [PianoMeter – Piano Tuner](https://apptail.io/app/pianometer-piano-tuner-KBHb/united-states) - [pianoscope – Piano Tuner](https://apptail.io/app/pianoscope-piano-tuner-EALc/united-states) - [iTuner - Chromatic Tuner](https://apptail.io/app/ituner-chromatic-tuner-HALc/united-states) - [Pitch Pro Tuner & Metronome](https://apptail.io/app/pitch-pro-tuner-metronome-KDSd/united-states) - [Metronome Tuner | Practice+](https://apptail.io/app/metronome-tuner-practice-ibYd/united-states) ## KeyTuner Available In - [China](https://apptail.io/app/keytuner-vKn/china) - [Japan](https://apptail.io/app/keytuner-vKn/japan) - [United States](https://apptail.io/app/keytuner-vKn/united-states) - [United Kingdom](https://apptail.io/app/keytuner-vKn/united-kingdom) - [Canada](https://apptail.io/app/keytuner-vKn/canada) - [France](https://apptail.io/app/keytuner-vKn/france) - [Germany](https://apptail.io/app/keytuner-vKn/germany) - [Australia](https://apptail.io/app/keytuner-vKn/australia) - [South Korea](https://apptail.io/app/keytuner-vKn/south-korea) - [Thailand](https://apptail.io/app/keytuner-vKn/thailand) - [Russia](https://apptail.io/app/keytuner-vKn/russia) - [India](https://apptail.io/app/keytuner-vKn/india) - [Netherlands](https://apptail.io/app/keytuner-vKn/netherlands) - [Italy](https://apptail.io/app/keytuner-vKn/italy) - [Mexico](https://apptail.io/app/keytuner-vKn/mexico) - [Sweden](https://apptail.io/app/keytuner-vKn/sweden) - [Taiwan](https://apptail.io/app/keytuner-vKn/taiwan) - [Belgium](https://apptail.io/app/keytuner-vKn/belgium) - [Poland](https://apptail.io/app/keytuner-vKn/poland) - [Brazil](https://apptail.io/app/keytuner-vKn/brazil) - [Vietnam](https://apptail.io/app/keytuner-vKn/vietnam) - [Spain](https://apptail.io/app/keytuner-vKn/spain) - [Türkiye](https://apptail.io/app/keytuner-vKn/turkey) - [Switzerland](https://apptail.io/app/keytuner-vKn/switzerland) - [Denmark](https://apptail.io/app/keytuner-vKn/denmark) - [Hong Kong SAR China](https://apptail.io/app/keytuner-vKn/hong-kong) - [Singapore](https://apptail.io/app/keytuner-vKn/singapore) - [Finland](https://apptail.io/app/keytuner-vKn/finland) - [Ukraine](https://apptail.io/app/keytuner-vKn/ukraine) - [Malaysia](https://apptail.io/app/keytuner-vKn/malaysia) - [Austria](https://apptail.io/app/keytuner-vKn/austria) - [Indonesia](https://apptail.io/app/keytuner-vKn/indonesia) - [Philippines](https://apptail.io/app/keytuner-vKn/philippines) - [Ireland](https://apptail.io/app/keytuner-vKn/ireland) - [Israel](https://apptail.io/app/keytuner-vKn/israel) - [New Zealand](https://apptail.io/app/keytuner-vKn/new-zealand) - [Czechia](https://apptail.io/app/keytuner-vKn/czechia) - [Ecuador](https://apptail.io/app/keytuner-vKn/ecuador) - [Norway](https://apptail.io/app/keytuner-vKn/norway) - [Romania](https://apptail.io/app/keytuner-vKn/romania) - [Peru](https://apptail.io/app/keytuner-vKn/peru) - [Portugal](https://apptail.io/app/keytuner-vKn/portugal) - [Belarus](https://apptail.io/app/keytuner-vKn/belarus) - [Nigeria](https://apptail.io/app/keytuner-vKn/nigeria) - [South Africa](https://apptail.io/app/keytuner-vKn/south-africa) - [Croatia](https://apptail.io/app/keytuner-vKn/croatia) - [Hungary](https://apptail.io/app/keytuner-vKn/hungary) - [Colombia](https://apptail.io/app/keytuner-vKn/colombia) - [Macao SAR China](https://apptail.io/app/keytuner-vKn/macau) - [Egypt](https://apptail.io/app/keytuner-vKn/egypt) - [Malta](https://apptail.io/app/keytuner-vKn/malta) - [Pakistan](https://apptail.io/app/keytuner-vKn/pakistan) - [Argentina](https://apptail.io/app/keytuner-vKn/argentina) - [Armenia](https://apptail.io/app/keytuner-vKn/armenia) - [Greece](https://apptail.io/app/keytuner-vKn/greece) - [Luxembourg](https://apptail.io/app/keytuner-vKn/luxembourg) - [Nepal](https://apptail.io/app/keytuner-vKn/nepal) - [Kazakhstan](https://apptail.io/app/keytuner-vKn/kazakhstan) - [Lithuania](https://apptail.io/app/keytuner-vKn/lithuania) - [Madagascar](https://apptail.io/app/keytuner-vKn/madagascar) - [Estonia](https://apptail.io/app/keytuner-vKn/estonia) - [Dominican Republic](https://apptail.io/app/keytuner-vKn/dominican-republic) - [Cyprus](https://apptail.io/app/keytuner-vKn/cyprus) - [Chile](https://apptail.io/app/keytuner-vKn/chile) - [Bulgaria](https://apptail.io/app/keytuner-vKn/bulgaria) - [Azerbaijan](https://apptail.io/app/keytuner-vKn/azerbaijan) - [Mali](https://apptail.io/app/keytuner-vKn/mali) - [Latvia](https://apptail.io/app/keytuner-vKn/latvia) - [Lebanon](https://apptail.io/app/keytuner-vKn/lebanon) - [Uzbekistan](https://apptail.io/app/keytuner-vKn/uzbekistan) - [Saudi Arabia](https://apptail.io/app/keytuner-vKn/saudi-arabia) - [Belize](https://apptail.io/app/keytuner-vKn/belize) - [Cayman Islands](https://apptail.io/app/keytuner-vKn/cayman-islands) - [Slovenia](https://apptail.io/app/keytuner-vKn/slovenia) - [Senegal](https://apptail.io/app/keytuner-vKn/senegal) - [Brunei](https://apptail.io/app/keytuner-vKn/brunei) - [Bahrain](https://apptail.io/app/keytuner-vKn/bahrain) - [Kenya](https://apptail.io/app/keytuner-vKn/kenya) - [Grenada](https://apptail.io/app/keytuner-vKn/grenada) - [United Arab Emirates](https://apptail.io/app/keytuner-vKn/united-arab-emirates) - [Honduras](https://apptail.io/app/keytuner-vKn/honduras) - [Kuwait](https://apptail.io/app/keytuner-vKn/kuwait) - [Algeria](https://apptail.io/app/keytuner-vKn/algeria) --- ## 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://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*