Comparison

KaraFun Box vs Karaoke Sync

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

Head to head
About

KaraFun Box

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KaraFun Box is the all-in-one solution for running and managing your karaoke boxes and booths. With an intuitive application designed for both your customers and you, it offers a simple yet powerful management system. Our dedicated app allows you to seamlessly plan, design, and manage customized karaoke, singing game Battle, and music trivia experiences, offering full control from start to finish. — Features for your customers — - Sing: A diverse music catalog with other 500 new songs added monthly, clients can always discover something new, ensuring there's always something new to sing. - Battle: A singing game with scoring to play and laugh together. Real-time scoring, fire vibes! Your customers will keep coming back. - Play: Add an interactive element with music quizzes, offering a new challenge to test musical knowledge between karaoke performances. -Interlude: Let guests sing the correct answer’s song right after each quiz question—keeping the fun going between rounds and connecting gameplay with performance. - Control: Customers can add titles and music quiz to the queue and select settings from any smartphone, offering seamless interaction and control. And can send real-time selfies to the lyrics screen from their smartphones. - Personalized experience: Users can adjust the volume of the vocals, change the tempo, and modify the pitch of the songs, ensuring a performance that suits their style. — Features for you — - Session management: Control the flow of your karaoke sessions with an automatic timer that ends and locks the app once the session is complete, keeping everything on schedule. - Scrolling Banner: Showcase promotions or welcome singers with a personalized scrolling message directly on the screen for added engagement. - Setting lock: Secure your settings with a password to prevent unauthorized changes, ensuring a consistent and secure setup for every use. - Demo Mode: Auto-play top tracks with a touch-blocking overlay—perfect for showcasing the app. - Blocked Mode: Lock the app until a session begins, with a fullscreen lock screen and muted audio. — Business Account Required — KaraFun Box is exclusively for our business clients. If you’re a KJ or looking for an at-home karaoke app, explore our Premium and Pro offers. Just search 'KaraFun' in your app store to download our public app and start singing!

About

Karaoke Sync

Transform any song into a karaoke experience with synced lyrics and YouTube videos. Create custom karaoke tracks from audio or videos, test your music knowledge with AI quizzes, and record yourself singing with various voice effects. Export your creations in multiple formats.

Highlights
  • Thousands of synced karaoke songs
  • Create custom karaoke tracks
  • AI-powered song quizzes
  • Real-time voice effects
  • Record audio and video
  • Lyric timing and editing
  • Multiple export formats
Features
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Karaoke Sync turns your phone into a karaoke lyric maker. Import a song, paste the lyrics, and tap along to time each line. Then sing, record, or export your timed lyrics. Want to sing right away? The Karaoke tab has thousands of songs with synced lyrics, ready to go. MAKE KARAOKE LYRICS FOR ANY SONG • Import an audio file (MP3, M4A, WAV, FLAC, AAC), a video from Photos or Files (MP4, MOV, M4V), or a YouTube link • Paste the lyrics, or paste timed LRC lyrics and keep their timing • Tap once as each line starts • Fine-tune any line in 0.1-second steps, with preview, loop and half speed • Shift a whole section at once when the song drifts WORD-BY-WORD TIMING • Switch to Words and each line's words are placed on a timeline for you • Drag the ones that are off, zoom in for fast passages, undo any move • Copy Timing applies one line's word timing to every line with the same words • Lyrics highlight one word at a time as you sing EXPORT YOUR TIMED LYRICS • LRC and Enhanced LRC (word-level) • SRT subtitles • CSV • Smule format: lyrics wrapped to fit Smule's lyrics editor, with timestamps as a guide. Timing is set again in Smule. Files open the share sheet: save to Files, AirDrop, or send to another app. SING AND RECORD • Record your voice over the music, or film yourself with the front camera • Auto-scrolling lyrics with the current line highlighted • Hear yourself live through wired headphones • Adjust voice level and voice sync after recording • Export an M4A mix of your voice and the music, or your voice on its own LYRIC VIDEOS • Turn a recorded take into an MP4 video with your timed lyrics on screen • Choose the font, size, color and animation, and add a background behind the lyrics • Karaoke animation fills in each word as it is sung, on word-timed lines VOICE EFFECTS Six effects for your recordings: Concert Hall, Cathedral, Stadium, Echo, Chipmunk and Deep Voice. Each unlocks with 100 tokens earned in the app. PRACTICE MODE Rehearse without recording. Tap any line to jump to that part of the song. KARAOKE MODE • Thousands of songs with synced lyrics and YouTube videos • Search by artist or song, sort by Popular, Top Rated or New • Filter by Vocals or Karaoke (instrumental) versions • Save favorites and request songs GAMES, QUIZZES AND FACTS • Finish the Lyric and Lyric Order, played with your own timed projects • AI song quizzes at Easy, Medium and Hard, plus song facts • Quizzes and facts are not available in every region TOKENS Earn tokens from a daily streak, new projects, exports, games, quizzes, song requests and short ads. Spend them on karaoke songs, extra quiz unlocks, bonus exports and voice effects. GOOD TO KNOW • Karaoke Sync does not remove vocals. For a backing track, import an instrumental version or pick a Karaoke version in the catalog. • Timing is done by hand, one tap per line. The app does not listen to the song to place lyrics. • Recordings made over a YouTube video contain only your voice, because YouTube sound is never captured. • Only import songs and videos you have the right to use. PRIVACY Your projects, imported audio and video, and recordings stay on your device and are never uploaded. No account needed. The app goes online for the karaoke and quiz catalogs, synced lyrics, YouTube videos, ads, purchases, and usage and crash statistics. FREE AND PRO Free: up to 10 projects, every export format, and 10 exports without ads. After that, each export takes a short ad or 25 tokens. Karaoke songs unlock with a short ad or 2 tokens. 10 song unlocks a month in the Quiz tab. Includes ads. Pro ($0.99 a month or $5.99 a year in the US): no ads, unlimited projects and exports, 100 song unlocks a month in the Quiz tab, and karaoke songs for 1 token. Smule is a trademark of Smule, Inc. Karaoke Sync is not affiliated with, sponsored by, or endorsed by Smule. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Karaoke Sync4 screens

Verdict

The call

The clearest difference is in-app purchases: KaraFun Box at none against Karaoke Sync's 2. KaraFun Box also leads on ads (none vs shown). Karaoke Sync's advantage is update cadence (every 4 days vs monthly). On price, 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. Karaoke Sync sells 2 in-app purchases, starting at $0.99 per month. KaraFun Box asks for nothing beyond the download.

UpkeepUpdate frequency

KaraFun Box ships an update monthly, Karaoke Sync every 4 days. The most recent releases landed on October 21, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
KaraFun Box versus Karaoke Sync: the parameters behind the verdict, then further details
ParameterKaraFun BoxKaraoke Sync
PriceFreeFree
Rating—4.7 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyMonthlyEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPadiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size128 MB17 MB
Age rating4+12+
DeveloperRecisioOlivia Renee Studio, LLC

In-app purchases

None

KaraFun Box

No in-app purchases

2 purchases

Karaoke Sync

Subscriptions2
  • Pro Monthly$0.991 Month
  • Pro Yearly$5.991 Year

Questions

Is KaraFun Box free?
KaraFun Box is free to download, with no in-app purchases.
Is Karaoke Sync free?
Karaoke Sync is free to download, with in-app purchases available.
Do KaraFun Box or Karaoke Sync have ads?
Karaoke Sync shows ads; KaraFun Box does not.
Which is updated more often, KaraFun Box or Karaoke Sync?
KaraFun Box ships an update monthly, and Karaoke Sync every 4 days. Most recently, KaraFun Box was updated on October 21, 2026 and Karaoke Sync on October 26, 2026.

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