What Magic Dust is
Async is a browser-based production suite — record, edit by transcript, enhance, publish — that until February 2026 the world knew as Podcastle. Magic Dust is its enhancement pass: select your audio (or the audio of a video), click, and the suite applies its "studio quality sound" cleanup, per the feature matrix available on paid plans. As a resident feature it is the least lonely tool on our board: your recording is already in the editor when you enhance it, and stays there for publishing after.
We graded Magic Dust rather than "Async" — the suite's recorder, editor and hosting are outside our syllabus — but a feature cannot be bought separately from its suite, so the suite's pricing and conduct are, unavoidably, part of the paper.
Where the points came from
Scope — 3.5/5
The documented claim is broad-brush cleanup: noise reduction and level taming toward a produced sound, on any audio or video file in the workspace. No per-problem module list is published, which caps the score; the half point above the one-trick tools reflects that leveling is genuinely part of the pass, making its output closer to finished than an isolator's.
Control — 2.0/5
Magic Dust is on or off. No strength, no problem selection, no partial application; if the pass over-polishes a voice, your recourse is the undo button. Within a suite aimed at people who explicitly do not want audio decisions, that is a coherent design philosophy — and our rubric prices what it costs users on the days the guess is wrong, coherent or not.
Workflow — 4.0/5
The strongest suit. Record, edit by text, enhance with a click, publish — for a solo creator, the distance from raw take to public episode is shorter here than anywhere else on our board. The enhancement step being one click is a workflow virtue precisely proportional to how much it is a control vice.
Value — 3.0/5
The numbers, as best they can be established (see below): free plan with 10 lifetime AI credits, 2 GB storage and 720p exports — a demonstration, not a tier; Essentials at $19.99/month or $143.90/year with 450 monthly credits; Pro at $39.99/$287.90; Teams at $84.99/$599.90. If the whole suite replaces three subscriptions for you, fair value. As a cleanup purchase alone, $12–20 monthly against Auphonic's metered $2.40/hour is not a close call. Note "lifetime" on those free credits: unlike every monthly free tier on our board, this one does not refill.
Transparency — 2.0/5, and it could have been worse
Here is what our verification on 2026-09-20 actually found. The vendor's own pricing page, fetched without JavaScript, displays plan prices as dashes. The plan figures above had to be corroborated through third-party coverage of the rebrand (consistent across multiple 2026 sources, one updated 2026-08-28). Meanwhile podcastle.ai 308-redirects to async.com, and the site's script bundles still carry the old name — cosmetic, but of a piece. We wrote the fuller story in Red Ink. The two points that remain: the free tier's limits are stated plainly, and the feature matrix is public. But a price a buyer cannot read from the seller is a failing answer to the easiest question on the exam.
Who it is for
- Solo creators who want one tab, start to published: the suite logic is real, and Magic Dust is a competent resident cleaner.
- Existing Podcastle-era subscribers: your workflow survived the rebrand; the feature is unchanged in spirit.
- Not for cleanup shoppers: buying this suite for its enhancer alone is the weakest per-dollar path on our board.
- Not for control seekers: everything said in the control section, twice.
Credit where due
- Shortest raw-take-to-published-episode path we graded
- Cleanup includes leveling — output is near-finished
- Feature matrix and free-tier limits stated plainly
- Coherent design for decision-averse creators
Points deducted
- Pricing page unreadable without JavaScript — cohort's only 2/5
- On/off enhancement, no strength control
- Free AI credits are lifetime, not monthly
- Suite price for a feature purchase
To raise the grade
Cheapest fix in this batch: put the numbers in the page. Static, readable prices would restore transparency to 4/5 and lift the total to 65.5 — a C+ — without an engineer touching the audio model. A strength slider for Magic Dust would be worth another two points. Both are decisions, not research programs.
Where to look: async.com — no affiliate relationship; we earn nothing either way. Check the pricing page in a normal browser and trust what the vendor displays on the day over any third-party figure, including ours.
Ranked against the field: best AI voice enhancer 2026 · The rebrand's paper trail: Podcastle is now Async.