What is the Belkins.app demand-test protocol?
Belkins.app uses a fourteen-day validation window for each cohort. Products are tested with real pages, tools, and payment paths before the strongest signal earns deeper build time.
Each product gets a small surface area: a clear buyer, a landing page, a working interaction, and a payment path. The portfolio tracks what should scale and what should archive.
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Gmail-ready payment nudges
Voice-cloned overdue-invoice nudges for freelancers. Trained on 5 of your real emails — drafts Day +7 / +14 / +30 in your tone, lands in Gmail Drafts for one-click send.
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Grant alerts matched to your CV
EU grant discovery matched against your CV — Horizon, EIC, ERC, MSCA, BMBF, NCN. Weekly digest of ≥80% fit alerts so you stop missing deadlines you didn't know existed.
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Cross-cloud savings audit
Cross-cloud cost arbitrage for AWS / GCP / Azure. Surfaces the top 10 SKUs you could move to Hetzner / Cloudflare / DO with one click. Free first audit.
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Claim diffs and prior-art surfacing
Patent claim diffing + prior-art surfacing built on the USPTO ODP corpus. For solo inventors and early-stage startups who can't afford $400/hr counsel for every filing.
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Regulatory diffs that affect shipping
Daily regulatory diffs across FAA UASFM, CFPB, EU GDPR DPA, FDA Devices, FTC. Severity-gated Slack digest — only the things that change what you can ship.
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Podcast matches with grounded openers
Targeted podcast pitches scored against host history. 30 matches/mo, custom opener per match grounded in real episode quotes — written to actually get a yes.
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Weekly linkable-asset prospects
Linkable-asset discovery for SEO teams. 50 fresh prospects/week across 4 source feeds, with a pre-written opener per prospect. Built for niches HARO ignores.
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Recurring meetings to kill
Detects when recurring meetings have lost their purpose. Chrome extension scores every event on your calendar and sends a Friday Slack digest of "kill these".
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Receipts categorized into QuickBooks
Receipt capture + expense categorization for SMBs and bookkeepers. Email receipts to one address, PaddleOCR'd, categorized straight into QuickBooks.
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Mailbox health and reputation alerts
Folderly's enterprise deliverability stack repackaged for solo founders and indie consultants. 1 mailbox monitored, weekly health report, spam-trap + reputation alerts.
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KILL / REHAB / KEEP domain audit
External cold-email estate audit by Folderly's deliverability team. Per-domain KILL / REHAB / KEEP — the view Spamhaus already has. Same engine that ran a real 90-domain client audit. First audit free.
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30-second deliverability verdict
Send any email, get your deliverability verdict in 30 seconds — SPF/DKIM/DMARC enforcement, spam-trigger & blacklist forensics, one-click Folderly remediation. The mail-tester rewrite, on real infra. Free to test.
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Sandboxed file preview
Never open a stranger's attachment again. Preview any file — PDF, deck, spreadsheet — as a safe, sandboxed, beautiful link. No download, no macros ever run. Free to start.
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PDF rebuilt as a living page
Your PDF is dead on arrival. Liven rebuilds any deck or report as a living interactive page — tabs, animated numbers, hover-able charts. You send a link, not a 12MB attachment.
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Tracked link engagement dashboard
DocSend for living documents. Host any interactive artifact at one tracked link — see who opened it, which tab they clicked, and the moment they hit book-a-call.
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Live ROI calculator for cold email
Stop attaching the one-pager. Drop a live ROI calculator into cold email — your prospect drags their own numbers and sells themselves. Lead capture on every drag.
Belkins.app uses a fourteen-day validation window for each cohort. Products are tested with real pages, tools, and payment paths before the strongest signal earns deeper build time.
The hub distinguishes demand-test landings from working MVPs. Wave 2 includes working tools such as PeekSafe, Liven, Trail, and LiveProof.