# Geo Synthesizer — user reviews > 117 indexed App Store user reviews of Geo Synthesizer by Wizdom Music LLC, rated 3.30/5 from 19 ratings. - Source: https://appshunter.io/ios/app/geo-synthesizer/id465224352/reviews - App overview in markdown: https://appshunter.io/ios/app/geo-synthesizer/id465224352.md - Rating breakdown: 5★ 7 · 4★ 1 · 3★ 4 · 2★ 4 · 1★ 3 ## What do users think of Geo Synthesizer? Overall sentiment: mixed **Pros** - 💡 Innovative and expressive instrument - 👍 Intuitive and adjustable interface - 🚀 Fast and responsive performance - 🎶 Great sound quality - 🎛️ Excellent MIDI controller capabilities - 🎸 Guitar-like playing experience - 🎹 Versatile sound engine - 🔊 Lush and rich sounds - ✨ Useful for live performance - 🌟 Highly playable instrument **Cons** - 🐛 Glitchy sound on iPad Pro - ❌ App not working correctly - 🗑️ Abandoned by developer - ❓ Mistaken purchase - 🚫 No longer works on iPadOS - 😵 Unintuitive interface - 💸 Waste of money - 📉 No updates for years - 😵‍💫 Ugly interface - 🤔 Disappointing sound engine - 📉 Limited sound library - 👎 Poor compatibility with other apps - 😵‍💫 Cartoonish look - 💰 Pricey for features - 🤔 Unfinished feel - 👎 Built-in sounds could be better - 😵‍💫 Cheesy graphics - 🐛 Clicking sound issues - 🐛 Audio drop out bug **Commonly reported bugs** - Glitchy sound on iPad Pro - App not working correctly - No longer works on iPadOS - Clicking sound on iPhone 6 - Core MIDI not working like before (iOS 9) - Crashing on launch (iOS 8.3) - Audiobus initialization problem - App crashes after last update - New presets can't be loaded - Envelope filters can't be adjusted - No access to menu config page - App shuts down on boot up (OS5) - Crashes on start-up (iPad 2) - Doesn't work on iPhone 4S - Sounds sometimes drop out - Horribly noisy until volume adjusted - No smooth transitions between notes - SampleWiz not working with it **Most requested features** - Update for iPadOS - Fix glitchy sound on iPad Pro - Support for Bluetooth MIDI - Refund option - Fix zooming issue on iPhone 11 - Add more columns like GeoShred - Output MIDI note velocity based on touch pressure - 3D Touch for velocity and aftertouch - Assignable magic slider for FM or volume swells - Broader sound library - More control over MIDI output - SF2 import for sounds - MIDI input for live use - Assign a major 3rd break between rows - Record feature within the app - Copy and paste functionality - More intuitive menus and buttons - More sophisticated patch programming - Multi-channel pitchbending support - More tutorial materials for technique and creativity ## Newest reviews (13 of 117) ### 2/5 — Bad sound *2025-10-30* This app works great on my older iPad but it has a glitchy sound on my iPad Pro it sounds like it is not running at the correct bit rate. ### 2/5 — Bad sound *2025-02-09* This app works great on my older iPad but it has a glitchy sound on my iPad Pro it sounds like it is not running at the correct bit rate. ### 2/5 — Disappointed.. :( no updates in the past 3 years *2019-10-27* I love the tones in this synth but there hasn’t been an update for 3 years which disappoints me ### 3/5 — Great interface but... *2018-12-09* Needs an update to work with Bluetooth midi. I really love this interface but can not get it to work with Bluetooth midi. ### 2/5 — Not working with GarageBand *2018-05-17* It does not work with GarageBand it does work with other synth but the tutorial shows it with GarageBand and that’s what I was looking for. ### 3/5 — Clicking sound is terrible *2017-10-13* Please fix the clicking sound. (iPhone6) ### 2/5 — Update needed *2017-03-28, version 1.2.2* It's about to be April 1st 2017.Why has this app not been updated?It looks like this app was abandoned for no real reason. ### 3/5 — Good controller *2016-12-21* It works and the key structure is well thoughout. The upper controlls are a bit of a throw off. ### 3/5 — Bug iOS 9 *2016-03-23* Core midi doesn't work like before. ### 3/5 — Clicking issue on iPhone6. *2016-02-19* Software will run on iPhone 6+, but it makes a clicking sound when you play any of the notes. It's annoying, but can be corrected when you wear headphones, as the clicking stops. Neat little toy. ### 2/5 — Not Mugician *2015-12-13* Yes, it has a similar interface, and a more "advanced" synth engine, but... My fingers are accustomed to the spacing in Mugician. Yes adjustable here, but I'd love to be able to get the exact spacing as before instead of having to adjust it all the time. Next, the interface colors are nothing like Mugician. I have found that my eyes are tuned to the color and grid layout of Mugician. When I play this thing, my brain keeps telling my fingers that I'm going to miss the note, and I play fast at times (on the original, was not a real problem), so the difficulty gets exacerbated. Unfortunately, it is like learning all over again. Very disconcerting. And probably nearest and dearest to my heart was the synth engine of Mugician. I can't seem to create the same sounds on here, and it is very disappointing. Imagine playing a guitar, getting to know the instrument well, the sounds it makes, and then one day you strum it and all you hear is a canned violin sound. Or some weird noise. The emotional connection to the instrument has been trashed, all in the name of "progress." So, while I still have Mugician on my iPads, iOS 9 has introduced a nasty bug that sometimes makes the audio drop out. I went to the App Store to see if there was an update, but to my surprise, it was removed. I got a replacement app that was named something else, but installs as Mugician. All it does is crash. So I got this with high hopes, since one of the authors is the author of Mugician. Sad day. :( I guess like everything else, as time goes on, I'll just have to get used to change, even if it's just for the sake of change. ### 4/5 — Great app! but... *2015-08-14* This app sounds awesome but it doesn't communicate well with audiobus keeps crashing With other apps like bias fx and cubasis and i'm also running it on a ipad air 2 please fix this problem,otherwise i would give it a 5 star. ### 4/5 — Needs Update for iOS 8.3 *2015-04-13, version 1.2.0* Crashing on launch ## Most critical reviews (10 lowest-rated) ### 1/5 — Vários problemas *2026-06-04* Pena que esse app foi abandonado pelo suporte. Ê realmente um instrumento que poderia ser usado de forma profissional…. se funcionasse direito. ### 1/5 — Poderia ser muito bom. *2024-11-14* O aplicativo não está funcionando corretamente e não tem suporte para resolver. ### 1/5 — Abandoned *2021-02-21* Geo Synth is just a fun toy anymore. Jordan has collected his money and has now abandoned it. It had such potential. It’s too bad. I wonder what Jordan is hawking now. ### 1/5 — App not good *2020-03-27* I bought mistaking it for "Sample wiz",can I he refund? ### 1/5 — GET THIS APP UPDATED NOW. *2020-01-26* No longer works on iPadOS. This was not cheap and I expect it to be updated. Absolutely awful support. ### 1/5 — Not as per expectations *2019-12-02* Kindly request to refund my money ### 1/5 — Such a waste of money! *2018-01-20* I’m a keyboardist and I’m not happy with this app at all. While the Geoshred is the holy grail of the guitar emulation, I was expecting to have the same feedback on synthesizers on this app. I was wrong. Such a ugly interface and nothing intuitive, this app is such a waste of my money, and I want it back! It’s not fair paying $10 on something I would literally throw in the trash can! Why I cannot have my refund on this?? ### 1/5 — Broken *2017-11-01* Does not work on 2017 iPad Pro with iOS 11. ### 1/5 — Audiobus error *2013-11-18, version 1.1.2* Keeps giving me "Audiobus initialization problem" error. Happening on iPad mini retina. On first gen iPad mini it seems to be ok. ### 1/5 — GEO Synthesizer *2013-08-07* Der GEO Synthesizer stürzt nach dem letzten Update immer ab. ## Most praised reviews (10 highest-rated) ### 5/5 — Please help *2019-12-24* It’s not showing whole notes of the instrument I have iPhone 11 why it is showing zoomed How can I fix the size of this app ### 5/5 — Fantastic Midi Controller *2016-08-29* Adopt this midi controller app if you want your melodies, licks, and chords to become alive. The note arrangement allows for greater expression than a standard keyboard layout would. Wish list: 3D Touch for velocity and after touch ### 5/5 — Simply the Best 🎹 app for live performance! Please fix the iPhone 6+ clicking sound *2016-04-24* Amazing app / controller that works as a separate instrument not only on iPad, but on iPhone as well! The controller every keyboardist dreams of. Must-have iOS musician app. 🐞 Please fix the iPhone 6+ clicking sound. ### 5/5 — Cheap alternative to a Linnstrument *2016-04-06* Can control polyphonic pitchbend instruments like the Linnstrument presets in Logic. Would be amazing to see 3D Touch velocity and aftertouch now. This would make an iPad Pro Mini an excellent Midi controller. ### 5/5 — Thanks for keeping this going! *2016-02-04* This is one of those apps that I've always liked. ### 5/5 — Hooray for 6s! *2016-02-03* Hooray, Geo Synthesizer is back in the game for the iPhone 6s! The stuttering (due to the 6s higher native 48k sampling rate) is now gone. Kudos to the developer, who was very responsive to the issue. Great support on their part. ### 5/5 — Favorite app of any type *2016-02-02, version 1.2.0* This app is awesome. Jordan Rudess and Kevin Fortier are geniuses. I start every morning with an improvisation along with whatever happens to be playing in my car, and it starts my day like black coffee. And I only have the phone version, I can't wait to try it on an iPad:) If you're a musician, GET THIS APP. Or even if your not:) ### 5/5 — My favorite touch-based controller *2016-01-09, version 1.2.0* The built-in synth is cool, but I tend to use this app as a controller for other synth apps and for external MIDI devices. My only suggestion for improvement would be for the max columns to be 1 more (like GeoShred) and to output MIDI note velocity based on touch pressure, if that's even possible to do well. ### 5/5 — My life is changed *2015-07-18, version 1.2.0* I'm already a big fan of Jordan Rudess' work and the fact that he is always teaching and sharing his secrets just inspires me to do the same and makes me a better musician. Amazing instrument-- it will complement my Kronos 2 coming in the mail in august :D -B. Hasson ### 5/5 — Супер! *2014-11-25* Вся продукция Wizdom Music качественная! А с помощью этого приложения мы, даже, импровизировали на концерте) советую покупать) --- *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 2026-09-09.*