Shortlist by what you need
Start here if you know why you are leaving Lacuna.
Want the closest match?
PhonicMindMost similar to Lacuna in what it does, its category and its price.
Visit (opens PhonicMind in a new tab)Need a free plan?
Aimi SessionHas a free plan, rated 3.9 out of 5.
Visit (opens Aimi Session in a new tab)Want the lowest price?
StaccatoFrom $11.99/mo, the lowest starting price here.
Visit (opens Staccato in a new tab)Want the best rated?
Song AIRated 3.9 out of 5 in our review, against 3.9 for Lacuna.
Visit (opens Song AI in a new tab)
At a glance
Green means better than Lacuna, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 LacunaBaseline | 3.9 | Free | Yes | Full songs in under 30 seconds, plus stem separation and a MIDI editor. | |
| PhonicMind | 3.8−0.1 | Free | Yes | Separates a full song into up to 8 stems - vocals, drums, bass, keys, strings, horns - in a single pass that keeps the musical coherence intact, browser-based. | vs Lacuna |
| Aimi Session | 3.9Same | $6/mo | Yes | Browser music studio with Aimi, an AI Producer that builds a full editable multi-track session from a prompt, then changes it on request with edits like a brighter chorus or a half-time bridge. | vs Lacuna |
 Somio AI | 3.8−0.1 | Free | Yes | Full-length songs with no duration limit, plus the videos to put them in. | vs Lacuna |
| Song AI | 3.9Same | Free | Yes | Full songs in 15-30 seconds, with a stated disclaimer that it is not Suno or Udio. | vs Lacuna |
 Clumi | 3.8−0.1 | Free | Yes | Splits a track into stems at 24-bit, then tells you its key and BPM. | vs Lacuna |
 Lyrics To Song AI | 3.9Same | Free | Yes | Structurally complete songs - verse, chorus, bridge - from lyrics or a prompt, across 500+ genres, with stem separation and MIDI export. | vs Lacuna |
 Chord AI | 3.4−0.5 | Free | Yes | Point your phone at any song - AI names the chords, tracks the beat, transcribes the lyrics with OpenAI's Whisper, and splits the audio into four exportable stems. | vs Lacuna |
| Staccato | 4.0+0.1 | $11.99/mo | No | Generates MIDI you can drag into a DAW, trained on music theory rather than hit songs. | vs Lacuna |
The alternatives in detail
In order of how closely each one matches Lacuna.
PhonicMind
3.8Free
vs Lacuna−0.1
Separates a full song into up to 8 stems - vocals, drums, bass, keys, strings, horns - in a single pass that keeps the musical coherence intact, browser-based.
- Full-song stem separation: vocals, drums, bass, keys, strings, horns
- Automatic detection of which instruments are present
- Single-pass processing that preserves musical coherence
Single coherent pass avoids the mismatch risk of independent per-instrument separation
Separation quality varies with source track complexity and production density
Aimi Session
3.9$6/mo
vs LacunaSame
Browser music studio with Aimi, an AI Producer that builds a full editable multi-track session from a prompt, then changes it on request with edits like a brighter chorus or a half-time bridge.
- Prompt to a full editable multi-track session
- Conversational edits to arrangement and sound
- MIDI writing through built-in virtual instruments
Studio is free to use
Company behind the product is not named on the site
Somio AI
3.8Free
vs Lacuna−0.1
Full-length songs with no duration limit, plus the videos to put them in.
- Songs from text, lyrics, references or an idea
- Full-length generation with no duration limit
- Separate acapella and instrumental output
No length limit, so the song ends where the song ends
Copyright-free is the vendor's assurance, not a settled question
Song AI
3.9Free
vs LacunaSame
Full songs in 15-30 seconds, with a stated disclaimer that it is not Suno or Udio.
- Complete songs from text in 15-30 seconds
- Lyrics-to-song and AI song cover restyling
- Vocal removal and stem splitting
States unprompted that it is not affiliated with Suno or Udio
No pricing figures, no company entity and no models named
Clumi
3.8Free
vs Lacuna−0.1
Splits a track into stems at 24-bit, then tells you its key and BPM.
- Vocal removal for clean instrumentals
- Stem separation for drums, bass, piano and guitar
- 24-bit WAV output
24-bit WAV keeps stems usable once layered in a DAW
No plan pricing published and no company named
Lyrics To Song AI
3.9Free
vs LacunaSame
Structurally complete songs - verse, chorus, bridge - from lyrics or a prompt, across 500+ genres, with stem separation and MIDI export.
- Lyrics or prompt to a structurally complete song with vocals
- AI lyrics generator for overcoming writer's block
- Vocal separation and song extension
Generates real song structure, not just a short generic loop
Free tier limited to 2 songs/month - evaluation only, not regular use
Chord AI
3.4Free
vs Lacuna−0.5
Point your phone at any song - AI names the chords, tracks the beat, transcribes the lyrics with OpenAI's Whisper, and splits the audio into four exportable stems.
- Real-time AI chord recognition via device microphone
- Four-stem instrument separation, exportable as .wav
- Lyrics transcription powered by OpenAI's Whisper
Named, specific underlying technical components (Whisper, Basic Pitch), not vague claims
Specific pricing for the complete version isn't shown
Staccato
4.0$11.99/mo
vs Lacuna+0.1
Generates MIDI you can drag into a DAW, trained on music theory rather than hit songs.
- MIDI generation from a prompt or uploaded music
- Accompany, Rewrite and Extend on existing material
- Up to 16 tracks and 32 bars at once
MIDI stays editable, unlike a generated audio stem
Commercial use is gated behind the Pro tier
FAQ
Questions people ask
Is Lacuna free?
Lacuna has a free plan.
What is the best free alternative to Lacuna?
Aimi Session is the highest-rated alternative here with a free plan (3.9 out of 5). Other free options: Song AI, Lyrics To Song AI, PhonicMind.
What is the cheapest alternative to Lacuna?
Among paid plans, Aimi Session has the lowest starting price (from $6/mo). If you need it free, start with Aimi Session.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.