# Mini Synthesizer for iPhone — user reviews > 39 indexed App Store user reviews of Mini Synthesizer for iPhone by Electro-Harmonix, rated 4.50/5 from 4 ratings. - Source: https://appshunter.io/ios/app/mini-synthesizer-for-iphone/id1126845803/reviews - App overview in markdown: https://appshunter.io/ios/app/mini-synthesizer-for-iphone/id1126845803.md - Rating breakdown: 5★ 3 · 4★ 0 · 3★ 1 · 2★ 0 · 1★ 0 ## Newest reviews (12 of 39) ### 3/5 — Much better now! *2024-06-22* This is a classic. Simple but now with midi working its quite usable. Hopefully auv3 etc in the future, but if u like old school this is quite al right. Cheers ### 2/5 — crackles *2018-01-11* the sound produced crackles on an iphone 8+ weird none of my other iphone synths produce this crackle. if it wasn't present this would be a 5 star rating ### 1/5 — Crackling sound *2017-01-13* I really want to like this app, but there are some audio engine issues on my iPhone 6s - lots of high frequency crackles on all of the presets make it unusable for anything serious, and unpleasant for anything playful. ### 1/5 — I expected better... *2016-12-17* I wanted to like this, I really did. Unfortunately the audio quality is just ok and the level seems low. The biggest issue though is the fact that there is very audible constant crackling the whole time I'm playing the synth. It's even crashed a couple times on my iPhone 7 Plus already and I've only had it not even a full day. Not what I have come to expect from anything carrying the Electro-Harmonix name. ### 4/5 — Awesome for on the go *2016-08-15* Great app by a company that make Fantastic pedals, highly recommend for anyone who loves synths. ### 2/5 — Disappointing *2016-08-11* I use EHX products in real life quite frequently and have always been impressed by their intuitive interfaces and versatility. Unfortunately this synth app is neither. It is slow to respond, lacks a piano roll, which would make the speed issue less of a problem. ### 1/5 — Closes immediately *2016-08-02* As other reviewers have said, the app closes immediately as soon as you touch a key. Fix it or give me my money back! ### 1/5 — App Crashes *2016-08-02, version 1.0* Soon as i touch the key it Crashes ### 1/5 — Doesn't work *2016-07-30, version 1.0* Crashes. Please fix! ### 1/5 — Problem *2016-07-30, version 1.0* The App starts. I can move the buttons, but when I hit the Keys, the App shuts down ;( I did a second Download, but it still doesn't work. Phone is updated. ### 1/5 — Crashing *2016-07-29, version 1.0* Instant crash when touching keyboard. No sound at all. IPhone5. Looking forward for update! ### 1/5 — Crashes *2016-07-29* Touch the keys, app crashes. Looking forward to an update so I can use the app. Demo looked great! ## Most critical reviews (10 lowest-rated) ### 1/5 — Crackling sound makes it *unusable.* *2024-02-01* I bought the real thing instead because it could be my favorite synth-- and this app does not do the instrument justice. I cannot imagine suffering through this app with intention to use it in a mix! That crackling would take some noise removal. Could work like a charm (esp with EQ) but recording is unbearable while heard during tracking. Cool from a novelty perspective though. Suggestion-- this app/interface could be more rounded out if the envelope could re-trigger the way the synth does when it is hit during a keypress. Could be a phone hit, a button, midi assignable, etc. Would also be cool to have an "amp sim" of the hardware speaker in the app. I love EHX! I want to buy more of these! You guys are the best, and I have a lot of future recording plans with my hardware version. ### 1/5 — App keeps crashing *2023-04-01* App keeps crashing ### 1/5 — Still cracking *2023-01-21, version 1.1.0* Needs to be fixed ### 1/5 — Don’t get it!! *2023-01-01* There is a very audible crackling sound on every note. I’m running it on a iPhone 11 and the crackling is unbearable. That being said, the synth itself does sound pretty good, it’s just a shame it has a bug that isn’t being looked into ### 1/5 — add auv3 *2022-06-16, version 1.1.0* great synth. but auv3 needed asap ### 1/5 — Don’t buy *2020-12-24* Keeps crashing and some patches crackle in a way that is not intended.. Like bad patch cable crackling.. It crashes when switching between presets! Fix it or pull it from the App Store. EH is a big enough company that this should matter, very embarrassing for them. ### 1/5 — Terrible *2019-07-19* When I first bought this app, probably in 2016, it was wonderful. It worked nicely for years- then very suddenly started producing a clipping/crackling sound whenever any key is pressed. I’ve tried uninstalling then reinstalling, adjusting the velocity, and tweaking several parameters, but nothing helped. No one should ever buy this app if they’re trying to get a working synth sound. ### 1/5 — Disappointing *2019-06-23* No matter what you do the audio clips and crackles ### 1/5 — Crackles! *2018-10-08* Installed and reinstalled this app. Crackles like crazy, sounds terrible. iOS 11 on my iPhone 8+. ### 1/5 — Needs update patch ASAP! *2018-07-01* Audio crackles no matter what you do. Electro-Harmonix, please give this app the patch fix it deserves. This app is the only way I will likely ever be able to use the iconic Mini-Synthesizer in my lifetime. Please help us out with a solution! ## Most praised reviews (10 highest-rated) ### 5/5 — Young Love! *2020-05-10* When I was a mere teenager growing up in Tacoma,WA I wondered into Guitar Maniacs one afternoon in the fall I believe based on the fact there were mushrooms popping up everywhere like every wall, any who Rick had one of these in the shop and it was the first synth I ever fell in love with. So I put it on layaway and a quick like 18 months later we were finally together! Unfortunately like most gear I had in those days it was lost to something really stupid like rent or court fees or some other shakedown that didn’t even get me high or wrap up my soul like a giant tiny cardboard and plastic synth that fit in my book bag and extended its space age progress on boring things like pianos and blasted me off into a world of kraftwerk, suicide and Depeche Mode! So thx ehx and it is great to be reunited in the matrix ! What’s up on a re-issue on the hardware?! Love y’all...best app based on a tiny cardboard and plastic magic synth box I’ve ever seen! By far! ### 5/5 — Really cool!! *2016-07-30* Never really played with actual synths and this is making me feel like I might want one. For three bucks this is a really awesome app ### 5/5 — This is a high quality app *2016-07-30* High quality app producing high quality sounds. The presets are great. I just hope they continue to develop it into a beast. ### 5/5 — Good Features *2016-07-30* One of the better synth apps for mobile, good selection of sounds and parameters to tweak! ### 5/5 — Works awesome. *2016-07-29* Previous reviewers said it crashes right away. Not for me. (iPhone 6) It is really cool and the layout is very simple and streamlined. I'm guessing the crashes are due to something else. It really is nice and works well. If you like this make sure you also check out the moog app. :) ### 5/5 — Great! *2016-07-29* Great sound! Works well with my iphone 6s plus. Please add simple drum machine! ### 5/5 — amazing, all encompassing synth app *2016-07-29* everything I've been looking for in a synth app! includes all necessary features to be an effective, essentially professional grade synth.. all accessible on a portable app. meticulous sound design and tone, unique ribbon feature, and flawless implementation of the after touch effect. easy to use and comprehensible without sacrificing quality and complex features. lots of unique features and capabilities that can be utilized by musicians of all levels. ### 5/5 — Amazing! *2016-07-29, version 1.0* Best App!! ### 5/5 — Fantastic! *2016-07-27* Fantastic emulation from the legendary company. The mini synth and the Holy Grail in one app. ### 5/5 — Wow! Back to the 80s. *2016-07-25, version 1.0* Very cool sounding pocket synth! Thank you EHX! --- *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 2026-09-14.*