Guitar Mentor PlugAI
Paste YouTube or import audio, get chords + lyrics + six stems + tab + an integrated coach and Learning Path around the exact recording.
Justin Guitar app
A teacher-led progression with Playground and Learning Path behind a subscription, without YouTube import or stem separation.
At a glance
| Coach / app | Input | Strength | Typical paid price (range) |
|---|---|---|---|
| Guitar Mentor PlugAI | YouTube URL or imported audio | Chords, lyrics, six stems, tab, coach, curriculum | $3.99/mo or $35.99/yr |
| Justin Guitar app | App curriculum only | Human-designed lessons, Playground, Learning Path | ~$9–11/mo; $65–130/yr |
| Chordie AI (Deplike) | Catalog songs in app | 3D animated coach on prepared tracks | ~$7–10/mo; $50–100/yr; lifetime ~$150 |
| Ultimate Guitar Pro | Existing tabs in catalog | Practice Mode with AI feedback on tab playback | ~$9.99/mo; $40–60/yr |
1. Guitar Mentor PlugAI: coach around YOUR song
PlugAI is Guitar Mentor’s integrated music coach. Paste a YouTube link or import audio and, after analysis, ask chord questions, get practice plans, navigate the Learning Path and work inside a six-stem mixer with generated tab and word-level lyrics. The coach is grounded in the song you brought, not a fixed catalog.
Best for: players whose motivation is a specific recording. Watch for: automatic transcriptions need ear-checking; free tier includes 3 song analyses/month and limited PlugAI; Pro is $3.99/mo or $35.99/yr with a 3-day free trial after your first successful analysis or Learning Path lesson 3.
2. Justin Guitar app: human-designed path
Justin Sandercoe’s website remains a substantial free course. The Justin Guitar app is the paid mobile product: monthly plans around $9–11 and yearly plans from roughly $65 up to about $130. A 7-day trial appears on the expensive yearly tier (~$129.99); cheaper yearly plans may not include a trial. Playground and Learning Path are paywalled. There is no YouTube import, no stem separation and no song-analysis pipeline.
Best for: beginners who want a trusted teacher’s sequence. Watch for: the free website and paid app are separate products with different access models.
3. Chordie AI (Deplike): 3D catalog coach
Deplike’s Chordie AI places a 3D animated coach on catalog songs inside the app. It is not built for arbitrary YouTube URLs. Pricing on the App Store shows weekly plans around $8.90, monthly roughly $7–10 and yearly from about $50 up to $100, with lifetime options near $150 depending on promotion.
Best for: visual learners who want animated fingering on prepared tracks. Watch for: song choice is limited to what Deplike has licensed and prepared.
4. Ultimate Guitar Practice Mode
Ultimate Guitar’s free tier offers roughly two million community tabs. Pro runs about $9.99/mo or $40–60/yr depending on store and promotion. Practice Mode adds AI-powered feedback while you play along with a tab. It does not convert YouTube to chords, does not separate stems and is not the same kind of open-ended coach as PlugAI.
Best for: when you already found a good tab and want graded practice on it. Watch for: community tab quality varies; verify against the recording.
Where each product is stronger
Justin Guitar wins on a coherent human teaching voice and a beginner path that does not require you to supply audio. Chordie AI wins on animated 3D demonstration for catalog songs. Ultimate Guitar wins when a transcription already exists and you want quick tab access plus Practice Mode. Guitar Mentor wins when the recording matters more than the catalog — YouTube imports, stems, tab generation, PlugAI and Learning Path in one workflow.
Our recommendation
Pick Guitar Mentor when the goal is “I want to learn this exact song from this link or file.”
Pick Justin Guitar when you want a teacher-designed foundation before choosing your own repertoire.
Pick Chordie AI when a 3D coach on a song already in its library is enough.
Pick Ultimate Guitar when you have a tab and need practice feedback, not analysis.
Frequently asked questions
What is the best AI guitar coach for a specific song?
Guitar Mentor PlugAI when you can paste a YouTube link or import audio and want chords, stems, tab and coaching in one workflow.
Is Justin Guitar free?
The JustinGuitar website course is free. The Justin Guitar app is a paid product with monthly and yearly plans; Playground and Learning Path are paywalled.
Does Chordie AI work with any YouTube video?
No. Chordie AI (Deplike) coaches on catalog songs in its library, not arbitrary YouTube URLs.
Does Ultimate Guitar have an AI coach like PlugAI?
Ultimate Guitar Pro includes Practice Mode with AI-powered feedback on tabs, but it does not analyze YouTube links or provide stems and curriculum like Guitar Mentor.
Sources and review date
Checked August 22, 2026. Product features and limits can change after publication.
Coach the song you actually want to play.
Try Guitar Mentor free — paste a YouTube link or import audio and see if PlugAI fits your practice.