Screens
See it in action
The Record step listens
A lesson path
Play Along library
Ear training
Studio
Lessons that hear you play: each note lights green when you hit it, and
every recorded take gets four measured scores — timing, pitch, accuracy,
consistency — plus a coaching note on what to practise next.
Free to start, on Android.
Android testers get 6 months of Multi Platinum free, starting the day you redeem the key we send at launch · On iPhone? Join the waiting list
From your first notes to your own songs, on 10 instruments.
Step-by-step paths from beginner to advanced across 10 instruments, covering technique, theory and public-domain tunes.
Record a take and get four measured scores — timing, pitch, accuracy and consistency — plus a short coaching note. Pitch is analysed on your phone; your recording never leaves it. 10 feedback sessions a month free, up to 200 on Platinum.
Daily practice streaks, session history and progress charts keep you motivated and show how far you've come.
Its own tab: interval, chord, scale and rhythm drills — no separate app needed.
Write with dictation and an AI co-writer, record takes, sing or play a melody and see it as sheet music, then export MusicXML or MIDI.
Set a weekly practice schedule and let Voxstrum remind you — so building the habit becomes automatic.
Five plans, in price order — from a free beginner path to a teacher plan with five student seats. Paid plans go on sale when Voxstrum launches on Google Play.
Prices in USD · your store shows the equivalent in your local currency
Voxstrum is going through Google Play's closed testing before general release. We need a small group of real players to put it through its paces — and we're saying thank you properly.
Give us the Google account email you use on your Android phone. That's the address Google Play checks, so it has to match.
You'll get an email with the Google Play opt-in link and your test key. Tap the link, install Voxstrum from Play as normal, paste the key under Profile → Promo & beta access, and keep it on your phone for the fortnight.
Work through a few lessons, record yourself, break things. Reply to our email with anything that felt wrong, confusing or broken.
When Voxstrum goes live we'll email every tester a personal key for our top tier — normally $27.99 a month. No card, no auto-renewal: the six months start when you redeem the key, and the account simply drops back to the free Bronze tier afterwards. Everything you've made stays yours — and we plan an early-bird discount on paid plans for every tester when they go on sale. We'll email you the details before launch.
20 Android spots in the first round. Google needs 12 testers opted in for 14 days before a new developer can launch — you'd be one of them.
Keep an eye on your spam folder for anything from hello@voxstrum.app.
Google requires a closed test to run for at least 14 days before an app can go
on general release — so staying opted in for the full fortnight genuinely is the
thing that gets Voxstrum launched. This round is Android only. On an iPhone?
There's no iPhone version yet — pick iPhone above and we'll email you if and
when there is.
Early-bird pricing: testers and everyone on the early-bird list will be
offered a launch discount on paid plans. We'll email the exact terms before
plans go on sale.
Yes. Purchases are switched off in the test build, so you can't be charged. A test key in your welcome email unlocks Multi Platinum — every instrument, every lesson, Studio and the teacher tools, 100 AI feedback sessions a month — for 90 days, so you can test everything. Spot holders also get a separate key for 6 months of Multi Platinum, free, when Voxstrum launches.
Install the test build with the Google account on your phone, paste the test key from our email under Profile → Promo & beta access, use it when you like — a few minutes a day is plenty — stay opted in for 14 days, and tell us what broke or confused you (Profile → Support → Report a bug, or reply to any of our emails).
No. The key needs no card and doesn't auto-renew. When the 6 months are up the account drops back to Bronze, and everything you've made stays.
The test group is for adults: you confirm you're 18 or over when you sign up. The app itself has student seats for children with a guardian's consent, but that's for after launch, not the closed test.
There's no iPhone version yet and no date for one. Pick iPhone on the form and we'll email you if and when that changes — that's the only email you'll get.
It's used for the test and nothing else: the steps to join, updates about the test, and your key at launch. No marketing list, no sharing. Ask privacy@voxstrum.app to delete it any time.