FreEWI vs EWI Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FreEWI
This app acts as a virtual MIDI event mapper for iOS devices. It allows users to remap, translate, and transpose MIDI events between different applications, enhancing flexibility for musicians. It's designed to work with other CoreMIDI-compatible apps, especially MidiBridge.
- Remap MIDI channels
- Remap controller messages
- Translate controller messages to aftertouch
- Remap program change messages
- Transpose note events
- Fast switching with MidiBridge
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Virtual inline MIDI event mapper for iOS FreEWI (pronounced free-wee) was designed as a free add-on for MidiBridge for EWI players, but can be used by anyone who needs to map MIDI events between apps. For mapping to/from external MIDI interfaces (or CoreMIDI network), MidiBridge is required. Using FreEWI inline in a MIDI event stream, events can be processed as follows: - Remap incoming MIDI channels to a different channel - Remap incoming controller messages to a different controller - Translate incoming controller messages to channel pressure (aftertouch) - Remap incoming program change messages to a different number - Transpose incoming note events up or down Although primarily designed for use with MidiBridge, FreEWI can be used with other apps that have CoreMIDI virtual support. In order for another app to be compatible, the following applies: - Generating app must be able to write to FreEWI's virtual MIDI port. - Receiving app must be able to read from FreEWI's virtual MIDI port - Generator and receiver can be same app FreEWI supports fast switching to and from MidiBridge, so you can fast-switch/launch MidiBridge from FreEWI and vice-versa. Other OMAC apps that support fast-switching will also be able to fast-switch to FreEWI. FreEWI does add a small amount of latency which varies depending upon the speed of the device and how busy the device is. Runs on iPad, iPhone and iPod Touch and requires iOS 5.1 or greater.
EWI Trainer
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Master your Electronic Wind Instrument with EWI Trainer - the comprehensive practice companion designed specifically for wind instrument players. Whether you're a beginner or advanced musician, this app provides everything you need to improve your skills and enjoy your musical journey. Key Features: • Interactive Scales Practice: Explore any scale type and root note with visual fingering positions on the EWI diagram and piano keyboard • Personal Melody Library: Create, record, and save your own melodies for structured practice sessions • Real-time MIDI Visualization: Connect your EWI or MIDI instrument to see your playing displayed on a dynamic piano roll • Progress Tracking: Monitor your improvement with detailed statistics and visual progress charts • Customizable Training: Create and edit your own training sets tailored to your specific learning needs • Music Theory Integration: Analyze scales and transpose melodies to deepen your understanding of musical structure Perfect for both beginners learning fundamentals and experienced players creating advanced practice patterns. Take control of your practice routine and watch your skills improve with EWI Trainer!
Screenshots
Verdict
The clearest difference is in-app purchases: FreEWI at none against EWI Trainer's 1. FreEWI also leads on iOS requirement (6.0 vs 12.0). EWI Trainer's advantage is update cadence (fortnightly vs every 11 months). On price, ads and device support 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
Both are free to download. EWI Trainer sells 1 one-off in-app purchase. FreEWI asks for nothing beyond the download.
FreEWI ships an update every 11 months, EWI Trainer fortnightly. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.
| Parameter | FreEWI | EWI Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 2 MB | 103 MB |
| Age rating | 4+ | 4+ |
| Developer | Audeonic Apps | Alfred Schilken |
In-app purchases
FreEWI
No in-app purchases
EWI Trainer
- All Pro Features$5.99







