Sing a song. Get a 5-dimension AI score in 60s. Loop weak spots until you nail them.
SongSync puts AI inside every practice session: record yourself singing along → Whisper aligns lyrics timing → YIN.js detects pitch in real time → AI scores pitch, rhythm, vibrato, breath, and expression → marks weak spots with timestamps → one tap to loop and conquer each one.
iOS 17+ · English, Chinese, Traditional Chinese, Japanese
What's live today
Seven core modules covering one complete AI-assisted practice session.
5-Dimension Vocal DNA Score
Record yourself singing along → upload → get pitch, rhythm, vibrato, breath, and expression scores + weak-spot timestamps + AI coaching within 60 seconds.
Real-Time Pitch Meter
See a live ±50 cents pitch meter while you sing. Deviation over 20 cents for 1 second triggers a red warning and haptic feedback — correct in real time.
Weak Spot Practice Loop
Once AI marks a weak spot, one tap plays that segment's backing track + reference pitch line. Re-sing, get a segment-only Δ score, loop until you hit the target.
Full-Song Rehearsal Loop
5-step closed loop: sing full song → DNA score → loop weak spots → re-record full song → before/after Δ comparison. No competitor automates the full rehearsal cycle.
Song Library + Copyright Firewall
50 built-in public-domain tracks (kids / classical / folk / CC0) + user-uploaded backing tracks. Upload requires a copyright declaration (4 options) per Apple 5.2 IP guidelines.
DNA Progress History
5-dimension long-term progress curves with 7d/30d/365d toggle. Free: 14 days. Pro: full history. Long-press a data point to see complete DNA detail.
4-Language Copyright Notice
Onboarding requires scroll-to-bottom acknowledgment in EN/ZH/ZH-TW/JA before dismissal. Permanently accessible in Settings. Forced re-read on major version updates.
Four steps from recording to improvement
One song at a time — AI guides a complete practice loop.
Pick a song and record
Choose from the built-in public-domain library or upload your own backing track. Sing along and watch the real-time pitch meter.
Receive your DNA score
Within 60 seconds get pitch, rhythm, vibrato, breath, and expression scores + AI-marked weak-spot timestamps + coaching suggestions.
Loop and conquer weak spots
One tap enters Weak Spot Loop mode: backing track + reference pitch line play for that segment. Re-sing and see segment-only Δ improvement.
Re-record the full song
Once weak spots are cleared, re-record the full song. AI shows before/after Δ across all dimensions. Track long-term progress in the DNA history curves.
Roadmap
Core v1.0 features are live. Here's what's coming next.
Progress report card sharing
Render your 365-day DNA history into a shareable card (vibrato +18% / pitch +6pp) — organic word-of-mouth and progress visualization.
Pro coach review
Connect with certified vocal coaches for paid monthly audio feedback on your recordings + a personalized practice plan.
Ensemble / choir mode
Each member records their own part; AI aligns timelines, generates a choir mix, and scores each part independently.
Want early access? Upgrade to Pro and you're automatically added to the early-access list.
Simple, honest pricing
Subscriptions processed by App Store / Google Play. Cancel anytime. Prices in USD.
Free
Try the core experience
- 3 AI-scored practice sessions / day
- 14-day DNA history
- Built-in public-domain song library
- Real-time pitch meter
- 4-language UI (EN / ZH / ZH-TW / JA)
Pro Monthly
The serious singer's choice
- Unlimited AI-scored practice sessions
- Unlimited weak-spot loops
- Full-history (365d) DNA progress curves
- Full-song rehearsal loop with before/after Δ
- Priority email support
Annual plan $19.99/year (~$1.67/mo, save 67%)
Get startedPro Yearly
Best value for year-round practice
- Unlimited AI-scored practice sessions
- Unlimited weak-spot loops
- Full-history (365d) DNA progress curves
- Full-song rehearsal loop with before/after Δ
- Priority email support
Frequently asked
1. How long does the AI score take?
After you upload your recording, the AI returns a 5-dimension DNA score + weak-spot timestamps within 60 seconds. If Whisper transcription times out, the app automatically falls back to a 4-dimension score (pitch, rhythm, vibrato, breath) so your practice session can continue.
2. What recording formats are supported?
MP3 and M4A files up to 10 MB and 10 minutes long. Files exceeding these limits will be rejected with a prompt to re-record or compress.
3. How is my uploaded backing track handled?
When uploading, you choose one of four copyright declarations: I own the rights / public domain / purchased license / personal practice only. SongSync does not redistribute your track — it stays private in your account for personal practice only.