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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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OpnForm
✓ verifiedPaid
Open-source AI form builder for free forms and surveys; strong adoption and traffic.
👁 30K/mo♥ 684
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MailerLite
✓ verifiedFreemium
Email marketing platform with automation, landing pages, and audience tools.
👁 5.1M/mo
Pricing
Free: $0
Pro (Monthly): $16 per month
Pro (Yearly): $16 per month (billed yearly)
Basic: $0/month
Pro: $20/month
Team: $49/month
No public pricing
No public pricing
Free: Free
Growing Business: Starting at $10/month
Advanced: Starting at $21/month
Core features
- ✦AI Form Builder
- ✦Unlimited forms, fields, and responses (Free plan)
- ✦Form logic, URL pre-fill, Hidden fields
- ✦File uploads, Custom code, Webhooks
- ✦Customizable themes and thank you pages
- ✦Form Analytics
- ✦Integration with Notion databases
- ✦Unlimited fields and submissions
- ✦Customizable form styling
- ✦Conditional logic and validation rules
- ✦Ready-made form templates
- ✦File uploads
- ✦Multi-page forms
- ✦Email, Slack, and Discord notifications
- ✦Submission editing
- ✦Form protection (password, captcha)
- ✦Item Banking
- ✦Test Delivery (IRT, CAT, LOFT)
- ✦Remote Proctoring
- ✦Reporting & Analytics
- ✦Psychometric Consulting
- ✦Test Development Services
- ✦Personalized learning algorithms
- ✦Complete and interactive content
- ✦Mobile-friendly study experience
- ✦Progress tracking and analytics
- ✦Adaptive review quizzes
- ✦Email marketing
- ✦Automation
- ✦Website builder
- ✦Landing pages
- ✦Signup forms
- ✦Transactional emails
- ✦Email verifier
- ✦Digital product sales
- ✦Paid newsletter subscriptions
- ✦Integrations
Use cases
- →Creating contact forms
- →Conducting surveys
- →Collecting internal announcements
- →Managing warehouse inventory check-ins
- →Gathering training feedback
- →Processing international job applications
- →Streamlining legal petitions
- →Supporting environmental initiatives
- →Guest blog submission forms
- →Event attendee check-in forms
- →Customer satisfaction surveys
- →Patient intake forms
- →Photography quotation requests
- →Equipment rental requests
- →Photo shoot permit requests
- →Certification & Licensure exams
- →Language Proficiency assessments
- →Pre-Employment & HR testing
- →Educational Assessments (K-12, Higher Education)
- →Government and Licensure testing
- →Preparing for the SIE exam
- →Studying for the Series 7 exam
- →Getting ready for the USMLE
- →Improving scores on the GRE
- →Passing the Life & Health insurance exam
- →Creating engaging email campaigns
- →Building websites and landing pages
- →Automating email marketing workflows
- →Selling digital products
- →Collecting leads and growing an audience
- →Sending transactional emails
- →Creating paid newsletter subscriptions
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