# Heterobeats > Dual metronome for polyrhythm and tuplet practice with customizable sounds. (iPhone/iPad app by Ryu Suzuki.) - Source: https://appshunter.io/ios/app/heterobeats/id395136491 (this page in markdown: same URL + `.md`) - Developer: [Ryu Suzuki](https://appshunter.io/developer/395136494) - Category: Music, Education - Price: $0.99 - Rating: 5.00/5 from 3 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 1 MB - Languages: American English - Released: 2010-10-03 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/heterobeats/id395136491/reviews.md ## What is Heterobeats? Dual metronome. It may be useful for tuplets or polyrythm exercises. Single Tap starts/stops the metronome. Dragging vertically changes the tempo. By Pinch in/out you can set the beats. 1 - 12 beats 4 - 2400 bpm (see below) 6 types of sound volume, pan settings bookmarks --- ver. 2.0 (2014.06): New tab interface. Bookmarks available. --- From ver. 1.3 the beats value has no constrain. Simply the entire length is limited in 300 - 15000 [ms]. The bpm range depends on the beats value: 4 - 200 bpm on 1 beat, 48 - 2400 bpm on 12 beats. ## Key features - Dual metronome functionality - Tempo adjustment via vertical drag - Beat setting via pinch-to-zoom - 6 sound types - Volume and pan settings - Bookmark saved settings ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/heterobeats/id395136491/reviews.md ### 5/5 — Heterobeats *2012-04-18* At last! This excellent, unique app. is intuitive and easy to use. It's an invaluable tool for developing polyrhythms. I've been looking for a metronome like this for years. Highly recommended. ### 5/5 — As a percussionist *2011-12-16* This app is dope! Definitely a fun and easy way to figure out multiple combinations of polyrhythms ### 5/5 — My God!! This app is AWESOME! *2011-03-03* I have waited a long time for an app like this! Studying Elliott Carter's music has just become easier. I've been curious about Henry Cowell's theories on rhythm scales and this greatly helps. I've been using Finale on my laptop and now I have the convenience of this on my iPhone. Please increase the polyryhthm to more voices say three to four simultaneous pulses. ### 5/5 — It's silly *2010-12-06* How long I've waited for someone to write this app. Nice and simple. Ps thanks for fixing it ### 4/5 — Very handy *2010-10-05* This app is the best tool to learn out phasing beat. This said, it doesn't appear quite the same in my iPhone 4 under iOS 4.1: tempo arrows on the top aren't showing. I would like to see certain updates as: - moooore than just 12 steps - A tempo slider on the side for rapid changes - the Key clic should present the option to mix both A & B sounds instead of just a third sound when in "sum" (beat 1) - A solo button under each voices to ear only one beat at a time. - I like the way to store presets but more than only four of them, please. ... Bravo to the developer ! ## Frequently asked questions about Heterobeats ### What is Heterobeats used for? Heterobeats is a dual metronome designed to help musicians practice complex rhythmic exercises such as tuplets and polyrhythms. It allows for precise control over tempo and beat divisions. ### How do I control the tempo and beats in Heterobeats? You can change the tempo by dragging vertically on the screen. To set the number of beats, use a pinch-in/out gesture. The app supports 1 to 12 beats and a BPM range from 4 to 2400. ### Does Heterobeats have different sound options? Yes, Heterobeats offers 6 different sound types for the metronome clicks. It also includes settings for volume and pan to further customize the audio output. ### Can I save my metronome settings in Heterobeats? Yes, Heterobeats features a bookmark function that allows you to save your preferred metronome configurations. This is useful for quickly recalling specific settings for different practice sessions. ### What devices is Heterobeats compatible with? Heterobeats is available for iPhone and iPod devices. It is rated for ages 4 and up. ### How much does Heterobeats cost? Heterobeats is a paid application and costs $0.99. There are no in-app purchases or advertisements. ### When was Heterobeats last updated? The latest version of Heterobeats, 2.0.1, was last updated on June 7, 2020. The app was originally released on October 3, 2010. ### What is the user sentiment for Heterobeats? Based on the available data, Heterobeats has a perfect rating of 5.0 stars from 3 ratings, indicating very positive user sentiment. ## Version history (last 5 releases) ### 2.0.1 — 2020-06-07 built App with the iOS 13 SDK to satisfy App requirements. ### 2.0 — 2014-06-22 New tab interface. Bookmarks. ### 1.3 — 2011-01-14 Changed how to limit the tempo. Some small fixes. ### 1.2 — 2010-12-05 fixed the imprecised clock ### 1.1 — 2010-11-13 improved the accuracy and fixed stuttered clicks. ## More apps by Ryu Suzuki - [Charango Chord](https://appshunter.io/ios/app/charango-chord/id414643290) All apps by Ryu Suzuki: https://appshunter.io/developer/395136494 --- *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 2026-06-10.*