Formbricks vs Plunk
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Formbricks compared with Plunk
| Detail | Formbricks | Plunk |
|---|
| What it does | The Open Source Experience Management Platform
| Open-source email platform for transactional, marketing, and automation
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | DE
| EU
|
|---|
| Pricing model | freemium
| Not given
|
|---|
| Pricing | Hobby (free, 250 responses/month), Pro ($74/month, 2,000 responses/month), Scale ($325/month, 5,000 responses/month). Annual billing available with 2 months free discount.
| Free plan: 1,000 emails per month with Plunk branding. Paid plan: $0.001 per email with no branding. Unlimited contacts on both plans.
|
|---|
| Key features | - Link-based surveys
- In-product surveys
- Email surveys
- Conditional logic
- Pre-segmentation
- Contact & segment management
- API access
- Workflow automation
- AI translations
- Mobile SDKs
| - Transactional email sending via API and SMTP
- Workflow automation with event triggers and branching
- Campaign broadcasts to segments or full contact list
- Dynamic audience segmentation
- Email analytics with opens, clicks, bounces tracking
- Inbound email reception and reply handling
- SMTP support for existing clients and frameworks
- MCP server for AI agent integration
- Visual email editor with HTML sync
- Custom domain setup with automatic DKIM, SPF, DMARC
|
|---|
| What makes it different | - Open source code you can customize and extend
- Full data privacy control with self-hosting option
- Ask customers at the right moment in their journey
- Granular segmentation to reduce survey noise
- Largest open source survey platform worldwide
| - All features included on every plan with no tiers or add-ons
- Fully open-source and self-hostable on own infrastructure
- Pay only for emails sent, never per contact
- One unified contact list for all email types
- Less than five minutes to send first email
|
|---|
| Free plan | Not given
| Not given
|
|---|
| Open source | Not given
| Not given
|
|---|
| Platforms | Not given
| Not given
|
|---|
| Public API | Not given
| Not given
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 76 ● no change since last check | 57 ● no change since last check |
|---|
| Trust Flow (Majestic) | 43 | 28 |
|---|
| Citation Flow (Majestic) | 51 | 42 |
|---|
| Referring domains (Majestic) | 2577 | 542 |
|---|
5 details filled in for both companies.
More alternatives to Formbricks More alternatives to Plunk