# Sylo Synthesiser — user reviews > 138 indexed App Store user reviews of Sylo Synthesiser by Wooji Juice Ltd, rated 4.10/5 from 24 ratings. - Source: https://appshunter.io/ios/app/sylo-synthesiser/id378074598/reviews - App overview in markdown: https://appshunter.io/ios/app/sylo-synthesiser/id378074598.md - Rating breakdown: 5★ 11 · 4★ 7 · 3★ 4 · 2★ 1 · 1★ 1 ## What do users think of Sylo Synthesiser? Overall sentiment: positive **Pros** - 🎵 Unique grain synthesis capabilities - 🎹 Intuitive and easy-to-use interface - 🎤 Built-in sampling and recording features - ⚡ Quick sound creation and manipulation - 🎚️ Extensive parameter tweaking options - 📋 Excellent user manual and documentation - 🆓 Free version available with solid features - 🔄 Good copy/paste functionality - 🎧 High-quality sound output - 🎯 Great for sound design and experimentation - 📱 Stable performance (when working properly) - 🎼 MIDI support available **Cons** - 🐛 Frequent crashes and freezing issues - 🔌 No Audiobus support - 🔗 Limited connectivity with other apps - 📱 iPad-only (no iPhone version) - 🎵 Audio quality issues with pops and crackles - 💾 Cannot save custom sounds (in earlier versions) - 🎹 Small keyboard keys difficult to play - ⚠️ Stability issues at extreme control settings - 🔊 Mono microphone input limitation - 📊 Limited factory sound library - 🎯 Steep learning curve for advanced features - 🚫 No IAA or AU plugin support **Commonly reported bugs** - App crashes on startup or when opening microphone - Crashes when rotating dials or using extreme control settings - Pops and clicking noises during playback - Audio distortion and warbling when holding keys - Freezing when using polyphony or complex loops - Keys remain pressed when scrolling between octaves - App won't load certain WAV files - Sound function fails requiring app reboot - Recording playback not functioning - Incompatibility with newer iOS versions - Update-related stability issues **Most requested features** - Audiobus integration - AU/IAA plugin support - iPhone version - Save custom sounds functionality - Larger, more playable keyboard keys - Stereo microphone input support - Expanded sound library - MIDI connectivity improvements - Metronome feature - Sequencer integration - Waveform trimming in sample editor - Core MIDI support - Wave shape editor - Modulation matrix - Hardware compatibility with modern devices - Preset settings for specific sounds ## Newest reviews (18 of 138) ### 4/5 — Updates? *2022-05-28, version 1.5* One of the first iPad synths, what a shame it does not have any connectivity :( ### 4/5 — Great old friend back again. *2019-02-14, version 1.5* Thanks for updating this classic. It works with midi and I love to use it with quantum sequencer. Cheers ### 4/5 — Versatile Nice App *2017-05-23, version 1.4* This app has a lot of hidden uses.I often record samples into it and play around with all the effects etc to achieve a certain sound.I love the record feature and audio past etc it works very well with other DAW's. highly recommended instead of wasting money on other apps,this app does the job. ### 4/5 — potentially one of the most useful *2016-03-01, version 1.4* I so wish Sylo had a better midi integration with the rest of the synth apps on my iPad. and like another reviewer said ... Audiobus support. Sylo was one of the first synth apps I put on my iPad and an early introduction to grain synthesis. you can have hours of entertainment and post production level audio with this app, but there is a very strong need to allow it to "play nicely" with Thor, iMini, Patterning, iSEM, Animoog, etc ... maybe this app is in a phase-out due to mitosynth - I dunno - but if that issue is worked on its 5 stars, seeing that the UI is very simple and there's virtually no learning curve - your kids will LOVE IT!! ### 3/5 — Would be perfect, but... *2015-06-06, version 1.4* ...no audiobus support. I love this app, but audiobus support would make me love it even more. ### 4/5 — Underrated synth app! Expecting more to come *2013-12-04, version 1.3* Loving the freshness of tones and expressing them in raw and different ways. Old grungy guitar tone can become a synth lead monster with slight tweaks of preamps, distortion, ring mods...basically tons of options to make your sound your own. Some of the effects I wouldn't have any use for musically, but I look forward to hopefully an expanding sound library to experiment with. One awesome feature I look forward to using is its ability to record any sound you input into it (you can even sing into the mic and it will generate a changeable sound wave) and tweaking it. Expanding the current sound library would make this 5 stars for me. ### 3/5 — Audiobus support *2013-05-02, version 1.2* Why no Audiobus with new update? ### 4/5 — Unique *2013-04-21, version 1.1.11* For the times you just can't find the right sound. Create it. Brilliant! ### 4/5 — Great little experimental synth *2013-03-14, version 1.1.11* Good value for money - great for soundscapes and atmospheres, audio copy great for pasting into sequencers, etc. ### 5/5 — Tech-head thumbs up! *2013-02-01, version 1.1.11* This is amazing. Thank you guys for creating such an awesome synth. Easy to use, record function is well designed and the editing functions are just what you would hope to expect from a high end synth. Plus it's free. Top job. My only ask, an iPhone compatible app? Was gutted when I realised I couldn't get this on my phone. Peace ### 4/5 — Great app *2013-01-30, version 1.1.11* As I actually own a old analogue synth, I really like this portable synth app, very good fun on the move, very good value for money app, thanks ### 4/5 — great synth that could be even better *2013-01-29, version 1.1.11* this was the first synth i bought & have always found it to have 1 of the best playing keyboards on ipad,its only let down by no decent midi & bgk audio to play with other apps & this would be great in audiobus especially the effects slot ### 5/5 — Synth Reviews *2013-01-27, version 1.1.11* Great sounds! Well worth the money. ### 4/5 — Fun *2013-01-25, version 1.1.11* This is good stuff, but I realllyyyy WISH there was a way to save the sounds you custom make. ### 5/5 — Mangled sonic fun *2012-11-22, version 1.1.11* When I was still fairly new to the iPad universe, I was trying out all the free synth apps. This one I purchased in app after only 30 seconds of twisting a couple of knobs and hearing fresh, innovative sonar spectrums. This is certainly a niche synth...look elsewhere for nice tranquil pads. Sample any sound and mangle with grain synth, delay, ring modulator, a unique freaky low pass filter; add some single-knob FM and distortion and make musical noise like no other synth can even imagine. Export in-app recording to other apps for further manipulation. Easy MIDI options, too. This is by far the best kept secret for fantastic new sound creation. Small tweaks make big changes to the tone. Again, this is for making unique, glitch-style music; real easy to make ultra-harsh synth solos that really stand out in a mix. Definitely a very useful tool in my producing arsenal. Well done Wooji Juice. ### 5/5 — thank you! *2012-11-16, version 1.1.11* the recorder is very cool ### 5/5 — For a free app, this is excellent *2012-11-06, version 1.1.11* A good, fun app for practising. ### 5/5 — Up to par *2012-11-04, version 1.1.11* Skrillex good ## Most critical reviews (10 lowest-rated) ### 1/5 — Good quality *2016-10-22, version 1.4* A bit different. No Audiobus. No AU. No IAA. No point. ### 1/5 — Free Version Has Ads *2013-01-08, version 1.1.11* I have V1.1.11 and am afraid to upgrade because the free version has ads across the top. Who knows what else is under the hood that might be considered nefarious. The upgrade path promises no ads but ads on the free version made me lose trust in this company. There was no advance warning that I'd have to contend with pesky ads. Not cool. The synth itself is very simple so beginners can learn from using it. However, I don't see it being worth the upgrade price for more advanced users. The on-screen keys are difficult to play. I'll have to try this with an external controller to see if my user experience improves. ### 1/5 — Will not update *2012-05-12, version 1.1.10* It was a good app. It will not update. ### 1/5 — But....Fix the app!!! *2011-03-12, version 0* I love is app and when I saw the new update, I thought I was gonna be more awesome than before...wrong. It crashes! It only lets me use it for 10 seconds and then returns back to the iPod menu... PLEASE FIX IT 5 stars because its an awesome app. 1 star because update kills. It. ### 1/5 — Poor update of a good app *2011-02-12, version 0* What a shame I updated the original, because this crashes every time I touch any of the new rotary dials. Shame. ### 1/5 — I wish it sounded better *2010-09-08, version 0* This is at least the third version, and it still doesn't sound good enough, in my opinion, to be worthwhile to use. Poor quality audio to begin with, plus pops and crackles. Holding a key down awhile causes it to warble up and down in pitch. Sampled sound doesn't sound that much like the inputted sound. ### 1/5 — Post update review... *2010-09-04* Guys. Please. Fix this app. I want use it for real. Post update and it still craps out on me whenever the loop gets complicated, or whenever I try to use lower register sounds along side higher ones. It seems to somehow kill the sound function altogether and i have to reboot the app to get it back. And the interface is confusing. I can't seem to replay loops I saved. Maybe I am misunderstanding how this is supposed to work. And the drop box function is confusing as well. Can I save to it, or just pull from it. I'm going to check the developer site and see if it's clarified there. Either way, so much simple potential. But no cigar just yet. I imagine getting a bunch of friends together with our ipads all hooked up to a p.a. and each of us using a different app like this one. But not with this current version. ### 1/5 — Great idea, poor implementation *2010-08-02, version 0* This app has a lot of potential, main problem is that is does not work well at all. Most of the time there is an electrical 'clicking' sound when sounds/notes start, and sometimes when they end. Also, for certain sounds, as the scale is played, certain particular notes distort badly (where adjacent notes play ok). These two things make the app useless and annoying. Other than that (which can hopefully be fixed one day), there is no scale/value for any of the settings, and there are a number of other problems. Bottom line is that if it can't play without 'clicking' noise, and it has problems generating certain notes on the scale, not much else matters. I do appreciate the 'free' version to be able to try it out before buying! ### 1/5 — Make a fuzzy noise *2010-07-26, version 0* I won't be buying this paid version till you fix this ### 2/5 — Crashing *2011-12-10, version 1.1.8* The app crashes after I open. I will keep the app but I expect an update soon ## Most praised reviews (10 highest-rated) ### 5/5 — update *2026-03-07, version 1.5* PLEASE, UPDATE THIS SO IT CAN BE USED IN TANDEM WITH MODERN HARDWARE AND MY LIFE IS YOURS ### 5/5 — Great app, great user manual! *2021-03-20, version 1.5* One of the best user manuals I’ve come across on iOS. Super well done. You can figure out how to use this thing in 10 mins (but a lifetime to master -lol!) Sounds great, super intuitive almost don’t even need a manual but I appreciate when they’re done right! A+ would buy again! ### 5/5 — Wish list *2019-06-18, version 1.5* I wish these guys would create new stuff. Their old stuff is fantastic. They created wonder right from the start when IOS was a baby. ### 5/5 — AUDIO-BUSS please! Way over do *2016-08-22, version 1.4* This is the best grain "anything" ..that I've used. Sample something ...then process it ! Fantastic!I literally I use this app on every sound design project in my studio and on jobs for clients. It's a major part of my tool kit ....the most useful grain synth ever! Not kidding it's amazing! But it needs audio buss like a million years ago!peace christo ### 5/5 — Amazing synth/sampler *2014-02-21, version 1.3* Really love this synth. You can get some amazing timbres just by sampling everyday sounds around the house. I actually like it better than its big brother synth Grain Science, which is more full featured but much more complex to program. There's something about the simplicity of Sylo that keeps me coming back to it. ### 5/5 — Cool app & lots of fun. *2014-02-04, version 1.3* Lots of fun. Cool app. ### 5/5 — Good synth *2013-04-17, version 1.1.11* Interesting synth app. Wish you could save. Flaming Lips' Steven Drozd uses this live. Quite commendable. ### 5/5 — Review *2013-04-16, version 1.1.11* It's great.but I would love to save the custom sounds I make. ### 5/5 — A good review!! *2013-04-15, version 1.1.11* A very good / very great, tool. Also, very fun to have fun with. ### 5/5 — Nice *2013-04-11, version 1.1.11* This is a great synth. I just only wish it had audio bus support. --- *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 2026-08-10.*