Geo Synthesizer vs TraqFreq
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Geo Synthesizer
This app is an expressive musical instrument and MIDI controller designed for multitouch surfaces. It offers advanced pitch control, custom sounds, and the ability to control external instruments or virtual MIDI apps. It also supports AudioBus for interconnecting audio apps.
- Expressive multitouch interface
- Advanced pitch bending
- MIDI output
- AudioBus support
- Customizable performance menus
- Multiple temperament options
- Load SampleWiz presets
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Geo Synthesizer is a musical instrument and MIDI controller. Originally a collaboration of Wizdom Music's Jordan Rudess and Kevin Chartier (MorphWiz, SampleWiz) and Rob Fielding (Mugician), Geo Synthesizer is an incredibly expressive musical instrument specifically created for a multitouch surface. Jordan is now working with Roli-Labs, creators of the amazing Seaboard instrument on an exciting future for Geo Synthesizer and it's users! A comprehensive Geo Synthesizer manual is available at: http://www.wizdommusic.com/GeoSynth/manual.html Jordan says: "Since touching a preliminary piano keyboard on an iPhone screen and realizing the amazing potential for musical expression on a multitouch device, I have been inspired to create next-generation musical instruments for iOS. Geo Synthesizer is a dream come true in many ways. It is the fastest truly playable iOS instrument that I have put my hands on to date. I can fly through the range of an instrument while expanding on the kind of advanced pitch control we introduced in MorphWiz. As someone who grew up with synthesizers, I can tell you that pitch bending has never been this good! "Geo features many of my custom sounds and in addition, Geo is also a MIDI controller, so you can use it with any external midi instrument or virtual MIDI. Virtual MIDI allows you to control an app running in the background on the same device! Geo Synthesizer also now features AudioBus, a technology that allows one to interconnect audio apps in exciting new ways! A great feature of Geo is that internally and externally we send independent voices on each note played, so as an example, you can pitch bend one note and not the other, or add unique expression on every note! I can't wait to see the YouTube videos of all of you guys rocking out with Geo Synthesizer!!!" Features: - AudioBus - ability to load waveforms from SampleWiz presets - octave rounding for effortless soloing over large ranges - whammy slider with absolute and relative modes - 12ET, 24ET, 53ET, and 665ET temperament options - mono, string, and full-polyphony modes - tuning and transposition controls - snap speed control to affect how quickly the instrument pulls notes in tune - playing surface options for number of rows and columns on screen - octave and fifth harmonics synthesis options to rich, organ-like sounds - gain control to add distortion to the sound - FM and touch FM controls for timbal variation - mono out for use with guitar amps - sine, sawtooth, square, and custom (SampleWiz) wave options - attack and release controls - synthesis body control - lowpass filter with resonance - stereo delay - reverb - MIDI output with polyphonic note bending and multiple configuration options to allow compatibility with a wide range of hardware and software synthesizers - performance menu lets you make your own custom menu so all the controls you need are always right at your fingertips - 40 presets carefully selected by Jordan Rudess, including patches from Jordan's personal sound library
TraqFreq
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TraqFreq is a musical instrument activity tracker that automatically tracks Playing, Climate, Supplies and Health. View detailed Live and Historical stats. Tune and intonate via Bluetooth on your Phone or TV! 1. TRACK YOUR PLAYING Automatically track playing activity on musical instruments, including time, sessions, passages, songs, epics and sets. Know and see what you are doing with your time on your musical instrument. 2. TUNER A unique, innovative and feature-packed tuner! Detection is done on the instrument and displayed via Bluetooth on a phone or TV!. Tune to an accuracy of 0.1 cents. See the lifespan of your strings, while you tune, based on actual playing time. An intonation mode helps you accurately compute an intonation offset for each string. Built-in and custom tunings and temperaments. Display modes for strobe, needle and both strobe and needle. Audible reference of the notes being tuned. 3. LIVE PLAYING STATS See your playing stats in real time, as you practice or perform, on your phone or TV! Display real-time information updated every second, on a phone or TV, providing real-time motivation. 5 display modes to help you focus on various Live playing scenarios. 4. METRONOME A metronome that knows when you play and can automatically start and stop as you play and stop playing. Supports 18 different metronome and drum sounds. Create your own patterns and variations, and sequence them to form more interesting beats. 5. TOUCH The TraqFreq enclosure is capacitive touch sensitive. Execute various actions simply by touching your TraqFreq while you play, without having to reach for your phone. Touch to switch between the Tuner, Live Stats and Metronome. 6. PHONE AND TV Connect directly to your Phone and TV. Supports up to 2 connections, allowing the TV and Phone apps to display your Tuner or Live Stats on both screens at the same time. Just touch TraqFreq or start playing and your results appear automatically where you need them. 7. AUDIBLE UI Not near your TV or phone? Plugged in and cannot access your locked phone easily? The Audible UI enables you to use TraqFreq without looking at a screen. By using the speakers on your phone, you can use the Tuner, Live Stats and Metronome, even if your phone is locked. 8. STREAKS See your latest daily playing streak and your best streaks. 9. HEALTH INSIGHTS TraqFreq analyzes your playing habits and provides insights and recommendations to help you avoid or recover from injuries. A playing Fitness score provides an analysis of playing data and health status. 10. CLIMATE MONITORING Innovative climate monitoring, with intelligent rule based processing of climate data specifically designed for musical instruments, enabling useful and relevant alerts. See detailed charts depicting the history of humidity and temperature. 11. SUPPLIES TRACKING Automatically track the lifespan of virtually any supply, like strings, bows and plectrums, based on actual playing time. Get alerted when to change a supply. 12. GOALS Create various goals based on actual playing time and monitor progress towards them. See detailed charts showing progress towards your goals. 13. SHARING AND REPORTS Create reports and send them to yourself, your parents, teachers and friends. Schedule reports to be sent by email on a weekly, monthly or custom interval. Manually share any chart or view using the share button. 14. RECORDS View a list of all-time records for playing and climate conditions. 15. TIMERS Create timers and stopwatches for specific events and practice sessions. Timers run and accumulate directly on the TraqFreq device when you play, even when your phone is off. TraqFreq supports most non-percussive instruments like acoustic, electric and bass guitars, violin, cello, saxophone, trumpet, piano and more. TraqFreq (pronounced track-freak) is designed for student, amateur and professional musicians. Learn more about TraqFreq at www.traqfreq.com and www.traqfreq.com/tutorials.
Screenshots
Verdict
The clearest difference is price: TraqFreq at Free against Geo Synthesizer's $9.99. TraqFreq also leads on update cadence (every 2 weeks vs every 11 months). Geo Synthesizer's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
TraqFreq is free to download; Geo Synthesizer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Geo Synthesizer ships an update every 11 months, TraqFreq every 2 weeks. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | Geo Synthesizer | TraqFreq |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 3.3 (19 ratings) — better | — |
| Positive reviews | 68.4% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 11 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 93 MB |
| Age rating | 4+ | 4+ |
| Developer | Wizdom Music LLC | TraqFreq |
Bugs and requests
Geo Synthesizer
Reported bugs
18 issues- 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)
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- 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
Requested features
20 requests- Update for iPadOS
- Fix glitchy sound on iPad Pro
- Support for Bluetooth MIDI
- Refund option
- Fix zooming issue on iPhone 11
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- 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
TraqFreq
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Geo Synthesizer
No in-app purchases
TraqFreq
No in-app purchases









