Getting your plugin onto Plugin Boutique or ADSR is the single biggest revenue multiplier an indie VST developer has available. Selling direct from your own Shopify might net you 60 sales in a launch month. Getting accepted onto Plugin Boutique's front page for the same plugin can net you 600.
But both marketplaces reject most first-time submissions. Not because the plugins are bad, but because the submissions themselves are missing things the reviewer expects to find. After shipping plugins to both platforms for the last six years (and watching a dozen developer friends get their first rejections), here's the version of this guide I wish I'd had.
What the marketplaces actually are
Plugin Boutique is owned by Loot Audio in the UK. They're the largest independent plugin marketplace by volume — bigger than any single manufacturer's direct store except possibly Native Instruments. Revenue share is roughly 70/30 in the developer's favor once you're past the initial ramp. They handle licensing, fraud, VAT, and refunds. They also run the "deal of the week" and monthly newsletters, which is where the real volume comes from.
ADSR Sounds is more producer-focused — their customer base skews toward hip-hop, electronic, and beat-oriented genres versus Plugin Boutique's broader mix. Revenue share is comparable. ADSR is where you go when your plugin is genre-native (trap, drill, R&B-leaning) rather than mix-engineer-native.
Both take about two to four weeks from submission to first listing, and both can reject you for reasons that have nothing to do with the plugin itself.
The submission checklist that actually gets you accepted
Everything below has to exist before you click "submit." If any of it is missing, the review gets deferred and you lose weeks.
Working installers for Mac AU+VST3 and Windows VST3. Signed, notarized on Mac (not just compiled), and tested on a clean machine that doesn't have your dev environment installed. "It works on my laptop" is the single most common self-sabotage. Plugin Boutique's review bench is a fresh install — if your plugin needs a runtime you didn't bundle, it fails.
A demo / free mode. Most buyers download a demo before buying. If your plugin doesn't have a demo mode (usually: silence every 30 seconds, or disabled save/export), the marketplace will either build one for you at lower quality or reject the submission. Build your own. It's one conditional in the code.
Three to five demo videos. Not promotional trailers — actual usage videos where you show a producer using the plugin. Plugin Boutique's "Course"-style pages are video-heavy and a submission without videos reads as half-finished. If you're not a video person, record a 3-minute screen capture walking through five presets. That counts.
A product page that a non-developer can understand. Title, one-sentence hook, ten-bullet feature list, screenshots, system requirements, DAW compatibility matrix. The DAW matrix is the single most under-invested asset in indie submissions and the most consulted one by buyers. Logic, Ableton, Cubase, FL, Pro Tools, Studio One, Reaper, Reason — tested, green/yellow/red.
Clean metadata. Plugin name consistent across installer, host display, marketplace title, and your website. No "MyPluginV2_final_final.pkg" installer filenames. This sounds trivial. Reviewers spot it in the first twenty seconds and it colors the rest of the review.
Pricing that isn't absurd. More on this below, but new developers systematically mis-price. The fix before submission saves you a re-review cycle.
Pricing — the part where indie developers usually get it wrong
There are two failure modes:
Pricing too low. A new developer lists their first synth at $29 because they don't want to "seem greedy." Plugin Boutique's customer base correlates price with perceived quality. A $29 synth reads as beta-grade. The same plugin at $79 reads as legitimate, and the conversion rate is higher at $79 even before you count the bigger margin.
Pricing too high without content. A $149 synth without three good demo videos and fifty preset sounds reads as overconfident. The number has to be justified by what the buyer can see before purchase.
My rule of thumb: price at what a Serum preset pack costs, which is $49-$79 for a single synth or FX and $99-$149 for a multi-instrument. That's the "discovery zone" where Plugin Boutique's deal-of-the-week can discount you to $29-39 and still look like a real deal. Below that zone the discount math stops working.
The rejection reasons nobody warns you about
After watching several submissions go through, here's the list of non-obvious reasons reviews get bounced:
Notarization lapses on Mac. You notarized once, then your Developer ID renewed, then you re-bundled without re-notarizing. Gatekeeper blocks the install on the review bench. You don't notice because your dev machine has the cert cached.
VST3 but not AU. Plugin Boutique reviews on Logic. Your VST3 might be perfect — if there's no AU build, they can't test it in their reference DAW. Build AU even if you don't care about Logic yourself.
Preset browser depends on installer-relative paths. Your plugin loads presets from ~/Documents/YourCompany/YourPlugin/Presets/, but the installer put them in ~/Library/Audio/Presets/YourCompany/ on the reviewer's Mac. Your plugin opens with an empty preset browser. Review fails without the reviewer telling you why. Always use the plugin framework's canonical preset location (AudioProcessor::getPresetDirectory() in JUCE, FileSystem.getSubdirectory() in HISE).
Sample library too big for the installer. If your plugin ships more than ~500 MB of samples, you need a separate content installer that downloads on first launch. Monolithic 2 GB installers get pushed back. HISE makes this particularly easy — the .hr1 sample archive format is designed for post-install download.
Copy-protection that fails on the review bench. If your plugin phones home to your licensing server and your server is down (or blocks their IP), the plugin doesn't activate. Reviewer can't test it. Set up a review-mode license that bypasses activation for their test machines, or better yet use offline activation for the first review.
UI clipped at 1440x900. Plugin Boutique reviews on 1440x900 and 1920x1080 by default. If your UI requires more vertical space than that, half the reviewers see a cut-off plugin and mark it down. Design for 1440x900 as the minimum.
After acceptance — the part most developers don't know
Getting listed is not the end. The marketplace's algorithm decides who gets featured, and featuring is where the real sales happen. Three things move the needle:
Reviews early. The first ten reviews disproportionately affect your ranking. Ship a discount code to your existing mailing list the week you launch and ask them to leave reviews. This isn't gaming — it's making sure the ten reviewers who matter are people who actually know your work.
Active updates. Plugin Boutique's algorithm rewards recently-updated plugins. A free 1.1 update two months after launch (add 20 presets, fix a couple of bugs) gives you a small but real bump in the "new and updated" surface.
Cross-marketplace presence. Being on both Plugin Boutique and ADSR — plus your own Shopify — creates trust signals. A plugin that only exists in one place reads as experimental. A plugin on three marketplaces reads as established. The 30% revenue share is a tax you pay for distribution you can't replicate on your own.
The long game
Marketplace listings are a compounding asset. Your first plugin earns modestly in its first month — you're a stranger to the audience and the algorithm hasn't decided you're worth featuring yet. Your third plugin, with the same marketing effort, does meaningfully better because you've built familiarity with the marketplace's audience. By plugin five, you're a name in the sidebar — the deal-of-the-week slots, the monthly newsletter features, the cross-promotion when a bundle fits your plugin.
That's the business. The first plugin is an investment. The third is where the margin actually appears.
Where this fits in the course
Module 8 of the VST Development Course is a full walkthrough of this — with the actual Plugin Boutique and ADSR submission portals, the exact installer checklist I use, the pricing spreadsheet, and the email templates for marketplace outreach. It's the difference between a plugin sitting on your hard drive and a plugin paying your rent. Founders' pricing closes June 1.
