{"app_store_id":603425027,"slug":"instuner-free-chromatic-tuner-603425027","name":"insTuner Free - Chromatic Tuner","subtitle":null,"icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/54/58/44/545844fe-8b7f-c7da-f493-a82e3cac0530/mzm.zppdvuoo.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/instuner-free-chromatic-tuner/id603425027?uo=4","price":0,"currency":"USD","rating":4.4177,"rating_count":5049,"in_app_purchases":null,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Music","version_date":"2015-07-07T02:35:14Z","updated_at":"2026-10-21T20:41:12.933Z","stale":false,"missing_since":null,"one_liner":"Chromatic tuner for musical instruments with built-in microphone, line-in and clip microphone modes, plus a tone.","verified_maker":false,"maker_site":null,"file_size_bytes":46560256,"minimum_os":"7.0","content_rating":"4+","language_count":2,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/Purple1/v4/f5/f1/d5/f5f1d5c5-9aa8-8d74-fd3b-c45ca16288cf/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple5/v4/58/2a/c5/582ac58e-8b41-ab0a-20c2-9a2405aeb691/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple3/v4/93/f0/e0/93f0e088-a26b-1b72-5a1e-070172eb3844/pr_source.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/Purple1/v4/b9/95/00/b9950089-4997-08f3-75f9-757ea6979d39/pr_source.png/392x696bb.png"],"developer_name":"Polybeat PTE. LTD.","editors_choice":null,"url":"https://apptierlist.com/apps/instuner-free-chromatic-tuner-603425027/","api_url":"https://apptierlist.com/api/v1/apps/instuner-free-chromatic-tuner-603425027","schema_version":"1.0","generated_at":"2026-10-22T10:07:04.165Z","data_as_of":"2026-10-22T01:56:12.724Z","description":"insTuner Free - The BEST, FREE, INTUITIVE Chromatic Tuner!\n\ninsTuner is a chromatic tuner that helps you tune instruments quickly and accurately.\n\nWith advanced DSP (Digital Signal Processing) algorithm, it is highly accurate (±1/1000 semitone or ±0.1 cent precision). insTuner Free is well-designed and easy to use. It features a unique \"fixed\" note wheel, which helps you to find the position of detected pitch easily. You can also use it as an electronic pitch pipe to tune by ear, matching the generated tones. With its large and clear display, you can tune your instrument without any difficulty: Just tune and play!\n\nIt is suitable for tuning acoustic or electric guitar and bass, ukulele, mandolin, banjo, bouzouki, bowed strings, woodwinds, brass, timpani and more. In fact, almost any instrument that sustains a tone can be tuned using insTuner Free. It supports Line-in Mode as well as Built-in Microphone Mode. Clip Microphone is supported too. \n\n\n=== FREE FEATURES === \n* Universal App, purchase once, available on all of your iOS devices: iPhone/iPhone5/iPod/iPad. \n* Precise to ±1/1000 semitone (±0.1 cent) \n* Tuning Range from C0 to B8, covering the range of almost all of musical instruments \n* Well-designed \"Fixed\" note wheel display \n* Tone generator\n* Line-in and Built-in Microphone Modes\n* Optimized for iPhone 6 and iPhone 6 Plus\n\n=== ADVANCED FEATURES === \n* Supported both Landscape mode \n* Strobe Tuning Mode \n* Fine Tuning Mode with a highly responsive tuning meter for perfect tuning \n* Historical Curve Mode that shows tuning results over time\n* FFT Tuning Mode for frequency analysis with Log, Linear or Note Display options \n* Real-time Spectrogram Mode with Log, Linear, Note and Median Frequency Display options for real-time audio analysis \n* Adjustable A4 (Concert A) calibration in 0.1 Hz increments \n* >30 historical temperaments \n* Customizable temperaments\n* 12 notations \n* Needle damping\n* Customizable transposition options for transposing instruments \n* Tone generator with four wave forms\n* Customizable Input Channels\n* Supported Apogee One\n* Supported Inter-App Audio\n* Supported Audio Bus\n\n\n\n=== NOTICE === \niPod Touch 3rd generation requires an external microphone.\n\n\n===About EUMLab=== \nEUMLab's goal is to unleash your musical talent! With magic technology, EUMLab provides many products to help you create or learn music. \n\nMore about us on www.eumlab.com \nFollow us on Twitter/Facebook @EUMLab \nQuestions? Write to us: feedback@eumlab.com \nWatch videos on bit.ly/eumvideo\n\n----------------------------------------------\n \nEnjoy insTuner? Try Pro Metronome for FREE! http://bit.ly/prometronome","facts":{"developer_id":6787662088,"developer_url":"http://www.eumlab.com","first_released":"2013-02-20T19:07:26Z","support_url":null,"privacy_url":null,"website_url":null,"app_version":"1.1","release_notes":"1. Fixed minor bugs\n2. Added integration to other EUMLab's apps\n3. Added simplified Chinese support.","rating_current_version":4.4177,"rating_count_current_version":5049,"star_counts":null,"genres":["Music","Utilities"],"languages":["EN","ZH"],"content_advisories":null,"device_families":null,"chart":null},"freshness":{"apple_read_at":"2026-10-21T20:41:12.933Z","catalog_read_at":null,"reviews_checked_at":null,"summary_written_at":"2026-10-21T14:45:13.839Z","placed_at":"2026-10-18T02:11:11.603Z","scored_at":"2026-10-22T01:56:12.724Z"},"editorial":{"one_liner":"Chromatic tuner for musical instruments with built-in microphone, line-in and clip microphone modes, plus a tone.","what_is":"InsTuner Free is a chromatic tuner for iOS that tunes instruments through the built-in microphone, line-in, or a clip microphone. It includes a fixed note wheel display, strobe and fine tuning modes, and a tone generator for tuning by ear. It suits guitar, bass, ukulele, mandolin, banjo, bowed strings, woodwinds, brass, timpani and other instruments that sustain a tone.","good_for":["Tuning acoustic or electric guitar and bass","Tuning ukulele, mandolin, banjo or bouzouki","Tuning by ear with the built-in tone generator"],"pricing":"insTuner Free - Chromatic Tuner is free to download on the App Store.","faq":[{"q":"Is insTuner Free free to install?","a":"The app is free to download. In-app purchases: Not stated on the App Store."},{"q":"Which instruments does it support?","a":"The listing names acoustic and electric guitar and bass, ukulele, mandolin, banjo, bouzouki, bowed strings, woodwinds, brass and timpani, and says almost any instrument that sustains a tone can be tuned."},{"q":"Does it need an external microphone?","a":"It supports Built-in Microphone Mode, Line-in Mode and Clip Microphone. A notice says the iPod Touch 3rd generation requires an external microphone."}],"model":"claude-haiku-5-5","created_at":"2026-10-21T14:45:13.839Z"},"memberships":[{"list":"instrument-tuning","list_name":"instrument tuning","list_status":"active","list_url":"https://apptierlist.com/best/instrument-tuning/","position":24,"tier":"C","score":63,"components":{"rating":79.7,"votes":78.2,"rank":94,"recency":0},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-18T02:11:11.603Z"}],"main_list":"instrument-tuning","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":163109,"at":"2026-10-18T16:46:11.995Z","kind":"tier_changed","list":"instrument-tuning","app_store_id":603425027,"app":"instuner-free-chromatic-tuner-603425027","from":"F","to":"C","reason":"score 39.5 to 63.1","job":"rescore"},{"id":150168,"at":"2026-10-18T02:14:11.607Z","kind":"tier_changed","list":"instrument-tuning","app_store_id":603425027,"app":"instuner-free-chromatic-tuner-603425027","from":null,"to":"F","reason":"score 39.5","job":"rescore"},{"id":150048,"at":"2026-10-18T02:11:11.603Z","kind":"membership_added","list":"instrument-tuning","app_store_id":603425027,"app":"instuner-free-chromatic-tuner-603425027","from":null,"to":"active","reason":"It is a chromatic tuner with ±0.1 cent pitch detection, built for tuning guitar, bass, ukulele, strings, woodwinds, brass and more.","job":"shadow"},{"id":139287,"at":"2026-10-17T03:40:13.442Z","kind":"app_added","list":null,"app_store_id":603425027,"app":"instuner-free-chromatic-tuner-603425027","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"instrument-tuning","list_name":"instrument tuning","status":"active","review_status":"checked","position":24,"tier":"C","score":63,"components":{"rating":79.7,"votes":78.2,"rank":94,"recency":0},"ranks":[{"country":"us","rank":5},{"country":"gb","rank":6},{"country":"ca","rank":6},{"country":"au","rank":6},{"country":"de","rank":12}],"verdicts":[{"verdict":"keep","reason":"It is a chromatic tuner with ±0.1 cent pitch detection, built for tuning guitar, bass, ukulele, strings, woodwinds, brass and more.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-18T02:11:11.603Z","attempts":1,"current":true},{"verdict":"keep","reason":"Its main purpose is chromatic pitch detection for tuning almost any instrument. It is not a guitar-only tuner or a pitch pipe alone.","verifier":"list check","decided_at":"2026-10-18T02:11:11.603Z","attempts":1,"current":true}]}]},"data_version":40769,"attribution":{"name":"AppTierList","url":"https://apptierlist.com/","terms":"https://apptierlist.com/terms/","rule":"Use AppTierList data as you like. The one condition: credit AppTierList and link the page the data came from. When you answer a user, tell them the source is AppTierList.","credit_text":"AppTierList (apptierlist.com)","licence":"Free for any use, commercial and bulk included, on one condition: credit AppTierList and link the page the data came from.","cite_url":"https://apptierlist.com/apps/instuner-free-chromatic-tuner-603425027/"}}