Comparison

VoicingWorkout vs Feel Sync

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VoicingWorkout

Features
Read full description

VoicingWorkout​ is an iOS app for music learning and training. With your iPad and a MIDI keyboard, it teaches the bedrock of pop & jazz piano: chord voicings. Fast-track your ear and muscle memory so you can hear and play any chord instantly. Inside the app you’ll find: ​1.Ear Training for Notes:​​ Graduated from easy to advanced. ​2.Chord-voicing drills:​​ Learn the sound and the inner voices of every chord. ​3.Chord progression workouts:​​ Master smooth transitions between chords in R&B, Funk, Jazz & Neo-Soul styles. Perfect for every keyboard student or producer. Best of all: no sheet music required. Everything is played entirely by ear. Use it as a daily trainer—or simply browse the chord library, audition progressions and spark your next idea.

About

Feel Sync

This music app enhances keyboard playing by syncing your performance with built-in or imported songs. It offers real-time harmonic feedback and lyric display for an immersive musical experience, even for beginners. Enjoy a curated selection of tracks or play along to your own audio files.

Highlights
  • Syncs with keyboard for real-time playing
  • Includes 70 built-in popular songs
  • Import and play along with local audio files
  • Lyric display for singing along
  • Intuitive and easy-to-use interface
Features
Read full description

This app is designed exclusively for use with the compatible CT-FS1. The app can be used via a Bluetooth® connection using the Wireless MIDI & Audio Adaptor WU-BT10 (included with the CT-FS1). About Feel Sync “Feel Sync” is the latest  evolution in musical immersion from CASIO  that lets anyone play in harmony from the first touch of the keyboard. Begin by playing a song stored on your device using this Feel Sync app, then just follow along with the rhythm and play the keys however feels natural to you, anyway you like. Explore New Ways to Play using Feel Sync ●Play Along with the Music You Love “Add a Song” from within the app and select a music file stored on your smart device. You can enjoy the feeling of performing as if you were part of your favorite band or playing alongside your favorite artist, just by playing in time with the tempo of your favorite song. Note: Feel Sync requires the use of music files that have been stored on your device. The supported file formats are WAV, AIFF, and MP3. Streaming services, which includes but is not limited to subscription-based services, are not supported by Feel Sync. ●Add Your Own Accompaniment and Sing Along "Add your own accompaniments for you to sing along to! You can do this by playing the keyboard along to an instrumental track or one that doesn’t feature vocals. Enjoy singing and playing along to your own unique accompaniment!" ●Play Together, Your Own Way You can use one half of the keyboard as a Feel Sync “zone” while the other half can be kept for standard playing. This allows experienced players and those who have never played a keyboard before to enjoy performing together to the same song. Using the app expands the ways you can engage with music and express yourself through performance.

Screenshots

VoicingWorkout4 screens
Feel Sync4 screens

Verdict

The call

The clearest difference is in-app purchases: Feel Sync at none against VoicingWorkout's 1. VoicingWorkout's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. VoicingWorkout sells 1 one-off in-app purchase. Feel Sync asks for nothing beyond the download.

UpkeepUpdate frequency

VoicingWorkout ships an update every 3 weeks, Feel Sync every 2 months. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

Scorecard2 real differences · 5 level
VoicingWorkout versus Feel Sync: the parameters behind the verdict, then further details
ParameterVoicingWorkoutFeel Sync
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size42 MB165 MB
Age rating4+4+
Developer涛 李CASIO COMPUTER CO., LTD.

In-app purchases

1 purchases

VoicingWorkout

One-time1
  • VoicingWorkout Pro Version$8.99
None

Feel Sync

No in-app purchases

Questions

Is VoicingWorkout free?
VoicingWorkout is free to download, with in-app purchases available.
Is Feel Sync free?
Feel Sync is free to download, with no in-app purchases.
Do VoicingWorkout or Feel Sync have ads?
Neither VoicingWorkout nor Feel Sync shows ads.
Which is updated more often, VoicingWorkout or Feel Sync?
VoicingWorkout ships an update every 3 weeks, and Feel Sync every 2 months. Most recently, VoicingWorkout was updated on November 8, 2026 and Feel Sync on November 4, 2026.

Other comparisons