# Spark: Chords, Backing Tracks — The Smartest Practice Amp > Smart practice amp and app for guitarists with auto chords, virtual band, and tone engine. (iPhone/iPad app by Positive Grid Inc.) - Source: https://appshunter.io/ios/app/spark-chords-backing-tracks/id1457653921 (this page in markdown: same URL + `.md`) - Developer: [Positive Grid Inc](https://appshunter.io/developer/751979910) - Category: Music, Utilities - Price: Free with in-app purchases - Rating: 4.80/5 from 24,659 App Store ratings · 645 written reviews indexed - Age rating: 17+ - Requires: iOS 15.0 · 558 MB - Languages: American English, Chinese (Traditional, Taiwan), Chinese (Simplified, China), Japanese - Released: 2020-01-29 - Data updated: 2026-08-29 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/spark-chords-backing-tracks/id1457653921/reviews.md ## What is Spark? 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. *Auto Chords* Automatically display chords for millions of songs. Choose 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. *Smart Jam* The 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! *Voice Command* The 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. *Tone Engine* Whether 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* *10,000+ Tones* The 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. If you have any questions or feedback, contact us via https://help.positivegrid.com/hc/en-us/requests/new ## Key features - Auto chord display for millions of songs - Smart Jam with AI-generated bass and drums - Voice command control - BIAS tone engine with 10,000+ presets - Tempo control and looping for practice - Realistic virtual tube amps and effects ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Experience Jimi Hendrix™ | $19.99 | one-time | ## What do users think of Spark? Overall sentiment: positive **Pros** - 🚀 Versatile, powerful, and full of features - 👍 Great sound quality and tone options - 🎨 Impressive amp and effects modeling - 💡 Useful smart jam and play-along features - 🎸 Excellent for practice and jamming - 🔊 Loud enough for small gigs **Cons** - 🐛 Connectivity and pairing issues with app - 🐛 Buggy app with crashes and glitches - 🔍 Difficult to organize and find saved tones - 🔊 Muddy or harsh tones at times - 🔋 Battery life could be better **Commonly reported bugs** - App frequently disconnects from amp - Tone selection issues and inconsistencies - Sudden loud noises or feedback from amp - Firmware update process is cumbersome - Spotify integration not working as advertised **Most requested features** - Add looping functionality - Improve auto-chord detection and playback - Allow more customization of signal chain and effects - Integrate with more music services beyond Spotify - Add EQ controls for Bluetooth speaker mode - Sync saved tones across devices ## Recent user reviews (10 of 645) All indexed reviews: https://appshunter.io/ios/app/spark-chords-backing-tracks/id1457653921/reviews.md ### 5/5 — Best guitar gadget ever *2026-08-25, version 4.5.3* I’ve bought several mini amps from Vox to Blackstar to Fender and the Spark is by far the best I’ve used. Well worth the money. ### 4/5 — UP and downs of Spark *2026-08-21, version 4.5.3* Great sound on headset and great modeling others tones yet poor quality of standards for craftsmanship buy warranty’s ### 2/5 — Groove Looper not fit for purpose *2026-08-19, version 4.5.3* The Groove Looper drums slip out of sync with the guitar loop. It seems the guitar loop is recorded on the Spark 2 and the drum loop is streamed from the app, and the two gradually slip out of sync with each other which makes the whole thing unusable after a minute or two. I reported it to support and they claim it’s being looked into, but there doesn’t seem to be any fix coming. Meanwhile Positive Grid continue to advertise this as a feature of the Spark 2 amp, despite knowing it doesn’t work. ### 1/5 — Don’t buy Positive Grid *2026-08-19, version 4.5.3* Hardware is not bad, actually fun… BUT: Lives and dies with the app. While they successfully manage to include new features to throw ads for more hardware in your face, the maintenance of the app is poor at best. iPhone app has a bug since more than a year where chords can get blacked out just when you want to read them. iPad app: normally, when you restart a just played YouTube song, stops playing sound on the amp. You have to manually swipe the slider for it to resume playing the backing track. Both iPhone iPad : some YT tracks cannot be stored. Don’t show in recently played nor saved songs. The list of saved songs is not curated. Just by time added, no other way of sorting them (and that would be so easy to fix… says the SW engineer). Each a minor thing but in the sum painful. this hardware is useless without GOOD app support. And they seem not to use their apps or just don’t care. Idk, decide on your own. And who really cares about all the AI bs. I regret my purchase. ### 5/5 — Blue tooth is starting to cut in and out. *2026-08-16, version 4.5.3* Had this for a few years and now the Bluetooth keeps cutting in and out. Suggestions? ### 5/5 — Works for Bass, too *2026-08-10, version 4.5.3* I have enjoys using this system more than any other headphones and pedals. Still love to feel the bass through my amp, but when I have to be ‘quiet’ this makes it more enjoyable. Love the ease of setup and AI for getting bass tones similar to a song or group. ### 4/5 — What a find! *2026-08-08, version 4.5.3* I got the SparkGO after trying other small amps like Boss Katana and was just disappointed with tone and abilities. Saw someone mention the GO and just took a shot in the dark. I genuinely rate it as one of the best purchases I’ve ever made. You can create virtually any tone you want, can save 4 presets permanently offline if you want, play backing tracks to jam on and I can even fit it in my guitar case for travel. 5 stars: give me a pitch shifter/harmonizer pedal please. ### 2/5 — It’s Okay? *2026-08-07, version 4.5.3* I’m sure at one time this app was cutting edge. However, it has started to decay. Features that I’m sure were once popular are starting to break. Will it be updated before rigor mortis sets in? Prime example, there is only one in app purchase, Experience Jimi Hendrix. It is displayed right across the top of the screen. It is unavailable for purchase. The content has expired. I’m sure for advanced users who only use this for tones are happy. Those function well. For the use of learning new songs, this is straight up clunky. Designing new tones with AI is greeted with the experience of the keyboard overlaying the navigation buttons. You are forced to decide if the tones you have are good enough, or if it is necessary to use the AI, then force quit the app and go through repairing. The saved song list (just one list, no option for playlists, unless you’re an Apple Music subscriber) has no customization and no search. If you saved more than a few songs, you will be forced to scroll through your entire list in the reverse order of which you added it. You will also be subject to looking for the title of whatever the person who uploaded it to YouTube named it. The app is still usable, but letting it rot makes me mindful that my physical amp is only good for as long as this software is maintained. I like the product, but it makes me question if I should continue to invest in Positive Grid gear, or if my money would be better spent buying a dump amp and fancy pedals. Having easily customizable tones is cool. The amp is great. As far as using the app for anything but guitar tones, you would be better off getting a $20 annual Ultimate Guitar subscription. ### 1/5 — Lots of bugs *2026-08-05, version 4.5.3* The app constantly tells me to connect my Bluetooth audio even though it is connected so some of the features never work. It always says to register my device even though I’ve done it sever times. Connecting my spark control is a whole process every time. It never just connects, I have to hold down the button on the device. Great sounds but connectivity is really poor ### 3/5 — Needs a lot of work, but it´s good for experiment *2026-08-04, version 4.5.3* I need to organize my presets in collections (folder structure) change the order of presets, create own categories, delete categories. I donˋt want to see all created presets arranged in a single list. For example, if I decide to make a project album, I would create a collection folder for that specific album project. These collections can exists in a separate tab, showing your custom projects albums. The app is not made for advanced users, but is a good starting point for just practice, not serious project or album solo creation. All the other features are good, AI is good, chords are good, amp modeling is very good. You can create a very well tones for any guitar. The only thing is, I cannot create custom collections or folders, or re order presets as I would like to. ## Frequently asked questions about Spark ### What does the Spark app do? The Spark app works with the Spark amp to provide an intelligent practice experience. It can automatically display chords for millions of songs, generate realistic bass and drum accompaniments that learn your playing style, and offers voice command control for easy operation. It also provides access to a vast library of guitar tones and effects. ### What are the key features of the Spark app? Key features include Auto Chords that display chords in real-time for any song, Smart Jam which creates a virtual band to play along with you, Voice Command for hands-free operation, and a powerful Tone Engine powered by BIAS, offering over 10,000 presets of amp and effects. ### How much does the Spark app cost? The app itself is free to download and use, but it requires the Spark Amp hardware to function. The app offers in-app purchases, likely for additional tones or features, as indicated by its monetization model. ### What devices is the Spark app compatible with? While specific device compatibility isn't detailed, the app is designed to work with the Spark Amp. Users should ensure their mobile device meets the minimum operating system requirements for the app, which are typically found on the app store listing. ### Who is the Spark app designed for? This app is ideal for guitarists and bassists of all levels who want to enhance their practice sessions. It's particularly useful for those who want to learn songs faster with auto chords, play along with a virtual band, or explore a wide range of professional guitar tones and effects. ## Version history (last 5 releases) ### 4.5.3 — 2026-07-01 What's New in 4.5.3 Stability • Fixed an issue that could freeze the app after connecting to your Spark amp • Fixed a crash when restoring presets from Dropbox • Fixed getting stuck on the connection screen with certain amps • Various other bug fixes and performance improvements ToneCloud • The Like button now works as expected • You're now prompted to sign in when using Like, Preview, or Download actions on a preset Groove Looper • Corrected Shuffle count-in and drum-track timing ### 4.5.2 — 2025-11-27 We update the Spark app regularly to make sure things are running smoothly and to get you jamming more than ever before. New in this update - Several fixes have been implemented for Mixer View for LIVE and EDGE, Onboarding and NEO Core ### 4.5.1 — 2025-11-06 We update the Spark app regularly to make sure things are running smoothly and to get you jamming more than ever before. New in this update: - Fixes crashing on iOS 15 - The app now correctly recognizes when log in token is expired, prompting you to log in - Minor bug fixes and performance improvements ### 4.5.0 — 2025-10-28 We update the Spark app regularly to make sure things are running smoothly and to get you jamming more than ever before. - Spark NEO Core is now supported on 4.5.0 ### 4.4.0 — 2025-10-24 We update the Spark app regularly to make sure things are running smoothly and to get you jamming more than ever before. New in this update: - Spark AI 2.0 Spark AI just got smarter with new features. Describe your tone and any changes you want, like more gain or less reverb and Spark AI will create and adjust your preset automatically, no knob tweaking needed. - Mixer View 2.0 (requires firmware update; Spark LIVE and Spark EDGE only) Mixer View 2.0 expands on the original with powerful new controls. You can now: - Pan each input - Split Inputs 3 and 4 into two individual mono tracks - Adjust Line Out volume independently without changing the speaker’s master volume -New vocal presets for Spark LIVE and Spark EDGE available for free on the Positive Grid ToneCloud account. Improvements: - Various enhancements to overall app performance and stability. Bug Fixes: - Fixed an issue where Spark GO could emit unwanted noise after switching from another Spark amp. - Fixed upgrade reminder display issue. ## Apps similar to Spark | App | Rating | Price | Category | | --- | --- | --- | --- | | [Ultimate Guitar: Chords & Tabs](https://appshunter.io/ios/app/ultimate-guitar-chords-and-tabs/id357828853) | 4.7 (473,250) | Free | Music | | [Chordify: Songs, Chords, Tuner](https://appshunter.io/ios/app/chordify-songs-chords-tuner/id1073624757) | 4.7 (33,443) | Free | Music | | [Guitar: tabs, chords & games](https://appshunter.io/ios/app/guitar-tabs-chords-and-games/id1365011081) | 4.5 (40,411) | Free | Music | | [ChordBank: Learn Guitar Chords](https://appshunter.io/ios/app/chordbank-learn-guitar-chords/id397602509) | 4.7 (6,277) | Free | Music | | [Guitar Scales & Chords Power](https://appshunter.io/ios/app/guitar-scales-and-chords-power/id647000751) | 4.8 (92) | $5.99 | Music | | [SongSheet Pro: Setlist helper](https://appshunter.io/ios/app/songsheet-pro-setlist-helper/id581094194) | 4.7 (2,679) | Free | Music | ## More apps by Positive Grid Inc - [JamUp](https://appshunter.io/ios/app/jamup/id449820506) - [JamUp Pro](https://appshunter.io/ios/app/jamup-pro/id454702113) - [BIAS AMP 2 - for iPad](https://appshunter.io/ios/app/bias-amp-2-for-ipad/id711314889) - [BIAS AMP 2 - for iPhone](https://appshunter.io/ios/app/bias-amp-2-for-iphone/id807996795) - [BT Bluetooth MIDI Pedal Editor](https://appshunter.io/ios/app/bt-bluetooth-midi-pedal-editor/id911674129) - [BIAS FX - Guitar Amp & Effects](https://appshunter.io/ios/app/bias-fx-guitar-amp-and-effects/id937685528) All apps by Positive Grid Inc: https://appshunter.io/developer/751979910 ## Related topics [spark music](https://appshunter.io/ios/topics/spark-music) · [positive grid spark app](https://appshunter.io/ios/topics/positive-grid-spark-app) · [spark amplifier](https://appshunter.io/ios/topics/spark-amplifier) · [positive grid spark](https://appshunter.io/ios/topics/positive-grid-spark) · [positive grid](https://appshunter.io/ios/topics/positive-grid) · [Spark App](https://appshunter.io/ios/topics/spark-app) · [spark apps](https://appshunter.io/ios/topics/spark-apps) · [harmonics real](https://appshunter.io/ios/topics/harmonics-real) · [backing track](https://appshunter.io/ios/topics/backing-track) · [barre chords](https://appshunter.io/ios/topics/barre-chords) · [backing tracks](https://appshunter.io/ios/topics/backing-tracks) · [guitar backing tracks](https://appshunter.io/ios/topics/guitar-backing-tracks) · [guitar jam backing tracks](https://appshunter.io/ios/topics/guitar-jam-backing-tracks) · [my spark app](https://appshunter.io/ios/topics/my-spark-app) · [tonebridge guitar effects](https://appshunter.io/ios/topics/tonebridge-guitar-effects) · [backing track builder](https://appshunter.io/ios/topics/backing-track-builder) · [jam tracks for guitar](https://appshunter.io/ios/topics/jam-tracks-for-guitar) · [backing tracks bass](https://appshunter.io/ios/topics/backing-tracks-bass) · [spark](https://appshunter.io/ios/topics/spark) · [guitar pedals](https://appshunter.io/ios/topics/guitar-pedals) --- *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 2026-08-29.*