Plunk

Run powerful email automations from a single API with fast, focused tooling.
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Open your laptop, connect your app, and control email from one place. With Plunk, you begin by wiring a single endpoint into your product to fire automations, then shape how messages roll out to every audience. Import contacts from CSV or spreadsheets, map fields, and tag people by source so you can target quickly. Build sign‑up forms for your site or landing pages and drop new subscribers straight into the right groups. Use segments based on behavior, geography, or purchase history to keep content relevant. The mobile app keeps you in the loop—approve a send, pause a flow, or check performance while you commute.\n\nDesign campaigns without opening a design tool. Start from a template, then use the drag‑and‑drop editor to place images, forms, buttons, tables, and content blocks. Pull files from the document library, browse the free stock photo gallery, and preview every change in real time. Personalize subject lines and body content with fields from your database, and run a quick spam check before you queue a send. Schedule by calendar, deliver by each recipient’s time zone, or let send‑time optimization choose the ideal moment. Test ideas with A/B or multivariate experiments—try different subjects, layouts, and calls to action, and roll out the winner automatically.\n\nAutomations are where Plunk saves hours. Create event‑driven paths that react to sign‑ups, checkouts, page views, or custom events from your code. Build drip sequences that space messages over days or minutes, and add branches for clicks, purchases, or inactivity. Trigger a workflow from any stack—Node, Python, Ruby, or no‑code—by calling one API and passing the user and event data. Common patterns ship fast: an onboarding series for a SaaS trial, a lesson‑a‑day drip for a course, invoice and renewal reminders, or an abandoned cart nudge that pulls products and totals dynamically. Need a content cadence? Convert an RSS feed into a weekly digest and let auto‑responders welcome new readers without you touching the keyboard.\n\nMeasure what matters as soon as emails land. Track opens, clicks, and conversions, then study the click map to see exactly where attention goes. Double down with retargeting—sync audiences to Facebook and Instagram, or run Google Display remarketing for visitors who need another touch. Clean lists, refine segments, and rerun your best variants to compound gains. Whether you ship a launch announcement to a global list or a narrow message to a power‑user cohort, you can move fast, stay organized, and keep every step auditable. When plans change, grab your phone, adjust the schedule, and keep momentum without waiting for a laptop.

Review summary

Features

  • Single API trigger for workflows
  • Drag-and-drop email editor
  • Real-time email preview
  • Predesigned templates
  • Document library
  • Free stock photos
  • Email scheduling
  • Delivery by recipient time zone
  • Send-time optimization
  • Mailing list management
  • Contact list import
  • Contact management
  • List segmentation
  • Sign-up forms
  • Event-triggered emails
  • Drip campaigns
  • Auto-responders
  • Abandoned cart emails
  • RSS to email
  • A/B testing
  • Multivariate testing
  • Spam check
  • Click-through tracking
  • Click map
  • Facebook Ads integration
  • Instagram Ads integration
  • Google Remarketing Ads
  • Mobile app
  • Template management

How It’s Used

  • SaaS onboarding and trial lifecycle automation
  • E-commerce abandoned cart and post-purchase follow-up
  • Newsletter production with RSS-to-email digests
  • Course drip delivery and lesson reminders
  • Webinar registration, reminders, and replay emails
  • Billing, invoice, and renewal notification flows
  • Product launch announcements with time zone delivery
  • Re-engagement campaigns for inactive users
  • Lead capture with sign-up forms and progressive segmentation
  • Retargeting audiences synced to Facebook, Instagram, and Google Display
  • Transactional alerts triggered from a single API call
  • Multivariate testing of subject lines and content layouts

Plans & Pricing

Free

Free

2 automated flows with 50 emails per day
Email from your own domain
1 seat

Pro

$18.33 per month

20 automated flows with unlimited emails
Email from your own domain
Email tracking
5 seats
Amazing support

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