# Timeslicer — polyrhythms made visible > Interactive polyrhythm visualization and practice tool for musicians. (iPhone/iPad app by Christopher Gross.) - Source: https://appshunter.io/ios/app/timeslicer/id1469134125 (this page in markdown: same URL + `.md`) - Developer: [Christopher Gross](https://appshunter.io/developer/873636939) - Category: Music, Music, Education - Price: Free - Rating: 4.81/5 from 52 App Store ratings · 17 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 9 MB - Languages: English - Released: 2020-01-25 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/timeslicer/id1469134125/reviews.md ## What is Timeslicer? You can think of a two part polyrhythm as two sets of accents on a fundamental pulse common to the two rhythms. If you’d like to think of polyrhythms that way, wow—are you ever lucky to find this thing! You can feel and count these smaller even beats instead of just trying to feel the fractions directly. Timeslicer shows you all these counts in action. You can even set it up to hear that underlying pulse, if you want. You can set the sounds and rhythms and tempo of the beats you'd like to practice. Then listen, watch, count, feel. When you think you have it, tap along on the buttons at the bottom. Keep the beats orange to bump up the combo counter and continue your streak. * The preset exercises are just a set of beats and sounds we especially like. They go from dead simple to verging on the complicated. They work just like the practice beats, except that your max combo gets saved for next time. Experiment Practice Learn Play * As the maker of this thing, we feel the need to point out that tapping in lockstep to clockwork is perhaps not the most musical of human activities. Still, we sometimes like to try to prove to ourselves that we could do it indefinitely, if we really wanted to. ## Key features - Polyrhythm visualization - Customizable rhythms and sounds - Tempo control - Interactive beat tapping - Combo counter and streak tracking - Preset exercises ## Recent user reviews (10 of 17) All indexed reviews: https://appshunter.io/ios/app/timeslicer/id1469134125/reviews.md ### 1/5 — App was cool til it broke *2024-08-19* No longer makes sound, and no access to a settings menu to try to figure out what needs fixing. So now its just worthless. **Developer response:** Any chance you’re using the speaker and have flipped the ring/silent switch off? ### 5/5 — Súper App *2024-03-30* Love the app! Once I figured out how to use the UI, it was super and fun to test myself. I love the fact that you can adjust your playing accuracy from loose to tight. Very fun way to learn polyrhythms without having to count every beat in your head and remember which beat they fall on, lol… However, figuring it out was a bit confusing for me. The initial screen could use with a bit more words to explain what’s going on. Just a thought: I would consider replacing the number of beats with a single field and labeling “# beats, left”, also relabeling “one” to “down beat” and adding “left/right sound” to the center column. Additionally, I wonder if you might consider a scrolling UI on the training screen for long exercises (6:7 at 42 beats) rather than splitting up the center into multiple columns. That way, the next beat will always be at the top of the screen rather than having to contort your brain to figure out… is it left or right, or when will it be? Hope that makes sense. Anyway, let me know if you’d like to talk further would be happy to explain my thoughts. The logic of the app is superb I just find the UI to be wanting. Again, super job. Happy that this exists! ### 5/5 — A “Must Have” App for ANY Musician. *2023-10-15* This is so “neat” as we used to say. The simplicity of this app requires no instructions. Set the right and left sides to contrasting instruments and it’s easy to hear how both sides interact. At first I just tried all the number combinations to listen. Then today I tried the test mode. I love how it displays color intensity depending on how much your timing is off. There must be many Christopher Cross’s but wouldn’t be surprising if this program was written by the great American singer songwriter. Even if it isn’t, then both CC’s are geniuses! This IS a “must have” app for ANY musician. I’d be happy to pay a little bit for this, but FREE? No way! Yep it’s true. Thank you Chris! ### 2/5 — Great…but *2023-08-20* A brilliant app. However, it switches off when Lock Screen comes on. I can’t find the app in settings to allow to allow background refresh. Ian writing here because the support link goes to a webpage with no means of contacting you. Would be great if you could help out as I love the app. ### 3/5 — no sound *2023-04-06* Love the concept of this app but can’t get the sound to work. Is there a fix? **Developer response:** Timeslicer won’t play through the speaker when your phone is in silent mode. Could that possibly be the problem here? ### 5/5 — Best app *2023-02-24* This is legitimately the best app on the app store. I can practice polyrhythms at home with the sound and visuals, and can even practice on the go with the rhythm tap game. Cant believe its free! ### 5/5 — Fantastic *2023-01-07, version 1.1* Perfectly made and perfectly simple, absolutely gorgeous visualization and straightforward controls, exactly what I was looking for. Extremely based to make it free and adless, I wish there was a place to make a voluntary donation. Thank you for your wonderful service you tip top human ### 5/5 — The best! *2022-12-11, version 1.1* I forgot to mention one more thing. Ok two more. I wish: -the was a quick button to swap between left and right tempo -the tempo could go much faster ### 2/5 — Looks good, but don’t work *2022-09-22* Maybe it’s because my iPhone is under iOS 16: the app shows up but no sound is coming out of it. Tried everything, this app don’t make any sound. Will update my review when it will be functional. **Developer response:** Timeslicer won’t play through the speaker when your phone is in silent mode. Could that possibly be the problem here? ### 5/5 — Beats the lot *2022-09-14* Oh this is phenomenal. Whoever you are thanks for making it— couldn’t be improved. ## Frequently asked questions about Timeslicer ### What is Timeslicer? Timeslicer is a free music app designed to help users visualize and practice polyrhythms. It allows you to set up custom rhythms, tempos, and sounds, and then provides visual feedback and interactive tapping exercises. ### Is Timeslicer free to use? Yes, Timeslicer is completely free to download and use. It does not have any in-app purchases or advertisements. ### What devices does Timeslicer support? Timeslicer is available for iPhone, iPad, and iPod touch devices. ### How often is Timeslicer updated? Timeslicer was last updated on January 28, 2020, with version 1.1. It was initially released on January 25, 2020. ### What is the age rating for Timeslicer? Timeslicer has an age rating of 4+, making it suitable for a wide range of users. ### What do users like about Timeslicer? Users appreciate Timeslicer's ability to make complex polyrhythms understandable and practiceable. The visual feedback and interactive elements are frequently praised for their effectiveness in learning. ### Can I practice polyrhythms offline with Timeslicer? The provided description does not specify whether Timeslicer supports offline play. However, its core functionality of visualization and practice suggests it may be usable without a constant internet connection. ### How does Timeslicer help with learning polyrhythms? Timeslicer helps by visually displaying the accents and underlying pulse of polyrhythms, allowing users to feel and count the smaller beats. The interactive tapping exercises further reinforce learning and skill development. ## Version history (last 2 releases) ### 1.1 — 2020-01-28 small tweaks:  remixed exercises 6:7 and 7:6 changed "speed" to "tempo" ### 1.0 — 2020-01-25 No release notes. ## Apps similar to Timeslicer | App | Rating | Price | Category | | --- | --- | --- | --- | | [BLEASS Motion FX](https://appshunter.io/ios/app/bleass-motion-fx/id1551643475) | 4.8 (12) | $7.99 | Music | | [MelodEar: Perfect Ear Training](https://appshunter.io/ios/app/melodear-perfect-ear-training/id1597264296) | 4.6 (63) | Free | Music | | [OODA — Portable MIDI Sequencer](https://appshunter.io/ios/app/ooda-portable-midi-sequencer/id1612549576) | 4.8 (39) | $8.99 | Music | | [ChowTapeModel](https://appshunter.io/ios/app/chowtapemodel/id1557806564) | 5.0 (51) | Free | Music | | [EarGuru](https://appshunter.io/ios/app/earguru/id1455788485) | 5.0 (4) | $3.99 | Music | | [BLEASS Slow Machine](https://appshunter.io/ios/app/bleass-slow-machine/id1544923864) | 4.7 (38) | $6.99 | Music | ## More apps by Christopher Gross - [A Lover's Complaint:](https://appshunter.io/ios/app/a-lovers-complaint/id873636936) - [Shakespeare's Sonnets:](https://appshunter.io/ios/app/shakespeares-sonnets/id873647981) - [The Raven: Confounded](https://appshunter.io/ios/app/the-raven-confounded/id908071669) - [Jabberwocky: Confounded](https://appshunter.io/ios/app/jabberwocky-confounded/id942355557) - [noumena](https://appshunter.io/ios/app/noumena/id1300929824) - [To Be: Confounded](https://appshunter.io/ios/app/to-be-confounded/id1409410499) All apps by Christopher Gross: https://appshunter.io/developer/873636939 --- *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.*