Comparison

HaiLun弹唱 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

HaiLun弹唱

Features
Read full description

无论你是钢琴新手还是弹唱达人,弹唱神器都能为你提供完美的伴奏体验!实时和弦识别、智能节奏生成、海量曲库支持,让你随时随地享受弹唱的乐趣!

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

HaiLun弹唱4 screens
Feel Sync4 screens

Verdict

The call

The clearest difference is update cadence: HaiLun弹唱 at fortnightly against Feel Sync's every 2 months. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HaiLun弹唱 ships an update fortnightly, Feel Sync every 2 months. The most recent releases landed on October 28, 2026 and November 4, 2026 respectively.

Scorecard1 real difference · 6 level
HaiLun弹唱 versus Feel Sync: the parameters behind the verdict, then further details
ParameterHaiLun弹唱Feel Sync
PriceFreeFree
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.6
Further details — not scored
Size58 MB165 MB
Age rating9+4+
DeveloperHAILUN PIANO CO., LTD.CASIO COMPUTER CO., LTD.

In-app purchases

None

HaiLun弹唱

No in-app purchases

None

Feel Sync

No in-app purchases

Questions

Is HaiLun弹唱 free?
HaiLun弹唱 is free to download, with no in-app purchases.
Is Feel Sync free?
Feel Sync is free to download, with no in-app purchases.
Do HaiLun弹唱 or Feel Sync have ads?
Neither HaiLun弹唱 nor Feel Sync shows ads.
Which is updated more often, HaiLun弹唱 or Feel Sync?
HaiLun弹唱 ships an update fortnightly, and Feel Sync every 2 months. Most recently, HaiLun弹唱 was updated on October 28, 2026 and Feel Sync on November 4, 2026.

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