{"app_store_id":1457653921,"slug":"spark-chords-backing-tracks-1457653921","name":"Spark: Chords, Backing Tracks","subtitle":"The Smartest Practice Amp","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/0d/d9/2a/0dd92a1e-f993-0b58-ee76-58ae79057bc7/AppIcon-0-0-1x_U007emarketing-0-8-0-sRGB-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/spark-chords-backing-tracks/id1457653921?uo=4","price":0,"currency":"USD","rating":4.84335,"rating_count":25068,"in_app_purchases":true,"recent_rating":2.85,"recent_review_count":20,"reviews_checked_at":"2026-10-18T00:06:11.618Z","primary_genre":"Music","version_date":"2026-09-17T09:08:55Z","updated_at":"2026-10-21T03:21:12.484Z","stale":false,"missing_since":null,"one_liner":"Free music app that displays chords for songs, slows or loops sections, and provides backing tracks and tone presets…","verified_maker":false,"maker_site":null,"file_size_bytes":589628416,"minimum_os":"15.0","content_rating":"17+","language_count":4,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/17/f3/05/17f3057b-2bc4-e080-9303-3b784a8998ca/d885e2b8-379e-4947-b417-b520ffe39147_1.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/40/dc/34/40dc3429-d52a-8979-81bb-83f019e28bb9/21dd7ceb-4447-4848-9003-fa8bec7cdcc2_2.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b1/b7/ad/b1b7ad6f-2582-d2af-9792-ead579dfb0e3/94029c69-e935-4076-990e-dcd3c8bd24ae_3.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f3/ab/0d/f3ab0d75-ae4b-d939-3291-df5dba3727d9/13028c14-e722-4fe4-a1ea-27c2ebce83d1_4.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a6/c1/72/a6c172f6-ccdd-2f1e-ba57-5330a8cc1aba/ac85490f-6c12-4116-b453-bdf74076d5e0_5.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/93/c8/3f/93c83f76-0230-fd6c-b23c-c004144e032f/a71d002a-d7a4-43ed-87f4-dfcea4706135_6.png/392x696bb.png"],"developer_name":"Positive Grid Inc","editors_choice":false,"url":"https://apptierlist.com/apps/spark-chords-backing-tracks-1457653921/","api_url":"https://apptierlist.com/api/v1/apps/spark-chords-backing-tracks-1457653921","schema_version":"1.0","generated_at":"2026-10-22T16:45:46.354Z","data_as_of":"2026-10-22T11:50:13.441Z","description":"The smart amp and app that jam along with you using intelligent technology. Play and practice with millions of songs and access over 10,000 tones powered by our award-winning BIAS tone engine.\n\n*Auto Chords*\nAutomatically display chords for millions of songs.\nChoose any song, and Spark will auto display its chords in real-time as you play. Easy controls let you slow down the song’s tempo or loop a difficult section as you master playing it.\n\n*Smart Jam*\nThe Spark amp and app work together to learn your style and feel, and then generate authentic bass and drums to accompany you. It’s a smart virtual band that goes wherever you go!\n\n*Voice Command*\nThe Spark app responds to your voice commands. Tell it to stream a rock song or a blues backing track, or ask for a virtual band to follow your playing.\n\n*Tone Engine*\nWhether you play pristine melodies, crunchy chords or soaring leads, Spark gives you a full amp modeling and multi-effects engine, powered by Positive Grid’s state-of-the-art BIAS with the most realistic virtual tube amps and effects on the planet. *Requires Spark Amp*\n\n*10,000+ Tones*\nThe Spark app provides over 10,000 killer guitar and bass amp -and-FX presets from famous guitarists, professional session players, expert studio engineers and hit-making producers from around the world.\n\nIf you have any questions or feedback, contact us via https://help.positivegrid.com/hc/en-us/requests/new","facts":{"developer_id":751979910,"developer_url":"https://www.positivegrid.com/spark","first_released":"2020-01-29T08:00:00Z","support_url":"https://help.positivegrid.com/","privacy_url":"https://www.positivegrid.com/privacy/","website_url":"https://www.positivegrid.com/spark","app_version":"4.6.2","release_notes":"Minor bug fixes and performance improvements","rating_current_version":4.84335,"rating_count_current_version":25068,"star_counts":[217,125,316,2047,22344],"genres":["Music","Utilities"],"languages":["EN","JA","ZH","ZH"],"content_advisories":["Unrestricted Web Access"],"device_families":["iphone","ipad","ipod"],"made_for_iphone_duo":null,"chart":null},"freshness":{"apple_read_at":"2026-10-21T03:21:12.484Z","catalog_read_at":"2026-10-18T00:06:11.618Z","reviews_checked_at":"2026-10-18T00:06:11.618Z","summary_written_at":"2026-10-14T13:04:19.839Z","placed_at":"2026-10-14T11:31:53.700Z","scored_at":"2026-10-22T11:50:13.441Z"},"editorial":{"one_liner":"Free music app that displays chords for songs, slows or loops sections, and provides backing tracks and tone presets…","what_is":"Spark is a free music app from the Music category that shows chords in real time for millions of songs, with controls to slow the tempo or loop a section. It can generate bass and drum accompaniment that learns your playing style, and it accepts voice commands to stream backing tracks. The listing also describes a tone engine with over 10,000 guitar and bass amp and effects presets, which requires a Spark Amp.","good_for":["Learning songs by following chords shown in real time","Practicing a difficult section by slowing or looping it","Playing guitar or bass along with generated drums and bass"],"pricing":"Spark: Chords, Backing Tracks is free to download, with in-app purchases on the App Store.","faq":[{"q":"Do I need a Spark Amp to use the app?","a":"The Tone Engine section requires a Spark Amp. It does not state whether Auto Chords, Smart Jam, or Voice Command need one."},{"q":"How many songs are covered by Auto Chords?","a":"The listing says Auto Chords can display chords for millions of songs. It does not name specific songs or list how the catalog is licensed."},{"q":"Does the app cost money?","a":"The App Store listing shows the price as free. Any in-app purchases are not stated on the App Store."}],"model":"claude-haiku-5-5","created_at":"2026-10-14T13:04:19.839Z"},"memberships":[{"list":"guitar-tabs","list_name":"guitar tabs","list_status":"active","list_url":"https://apptierlist.com/best/guitar-tabs/","position":9,"tier":"A","score":84.8,"components":{"rating":96.7,"votes":86,"rank":56.6,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"normal","judged_at":"2026-10-14T11:31:53.700Z"}],"main_list":"guitar-tabs","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"maker":null,"history":[{"id":146889,"at":"2026-10-17T12:14:13.437Z","kind":"tier_changed","list":"guitar-tabs","app_store_id":1457653921,"app":"spark-chords-backing-tracks-1457653921","from":null,"to":"A","reason":"score 70.2 to 85.4","job":"rescore"},{"id":76923,"at":"2026-10-14T11:31:53.700Z","kind":"membership_added","list":"guitar-tabs","app_store_id":1457653921,"app":"spark-chords-backing-tracks-1457653921","from":null,"to":"active","reason":"Auto Chords shows chords in real time for millions of songs, with tempo slowing and section looping so you can play along.","job":"shadow"},{"id":67041,"at":"2026-10-13T00:31:54.739Z","kind":"app_added","list":null,"app_store_id":1457653921,"app":"spark-chords-backing-tracks-1457653921","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":"guitar-tabs","list_name":"guitar tabs","status":"active","review_status":"checked","position":9,"tier":"A","score":84.8,"components":{"rating":96.7,"votes":86,"rank":56.6,"recency":100},"ranks":[{"country":"us","rank":40},{"country":"gb","rank":37},{"country":"ca","rank":48},{"country":"au","rank":36}],"verdicts":[{"verdict":"keep","reason":"Auto Chords shows chords in real time for millions of songs, with tempo slowing and section looping so you can play along.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-14T11:31:53.700Z","attempts":1,"current":true},{"verdict":"keep","reason":"approved from the list's side","verifier":"list check","decided_at":"2026-10-14T11:31:53.700Z","attempts":1,"current":true}]}]},"data_version":41058,"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/spark-chords-backing-tracks-1457653921/"}}