Customer.io
Customer.io is a versatile customer engagement platform that allows you to send automated emails, push notifications, and SMS messages based on real-time behavioral data to improve user retention.
Handwrytten
Handwrytten is a robotic handwriting service that allows you to send personalized, pen-written notes and greeting cards directly from your computer or CRM to improve customer engagement.
Quick Comparison
| Feature | Customer.io | Handwrytten |
|---|---|---|
| Website | customer.io | handwrytten.com |
| Pricing Model | Subscription | Freemium |
| Starting Price | $100/month | Free |
| FREE Trial | ✓ 14 days free trial | ✘ No free trial |
| Free Plan | ✘ No free plan | ✓ Has free plan |
| Product Demo | ✓ Request demo here | ✓ Request demo here |
| Deployment | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 2012 | 2014 |
| Headquarters | Portland, USA | Phoenix, USA |
Overview
Customer.io
Customer.io is a powerful automation platform designed to help you send relevant messages based on how people interact with your product. Instead of sending generic blasts, you can trigger personalized emails, SMS, and push notifications when users perform specific actions. This ensures your communication is always timely and contextually aware, helping you move customers through your lifecycle funnel more effectively.
You can manage complex messaging workflows using a visual builder that maps out the entire customer journey. Whether you are onboarding new users, re-engaging inactive ones, or sending transactional updates, the platform provides the data-driven tools you need. It is particularly effective for SaaS companies and mobile apps that rely on real-time user data to drive growth and long-term loyalty.
Handwrytten
Handwrytten helps you scale the personal touch of a handwritten note without picking up a pen. By using custom-designed robots that hold real pilot G2 pens, the platform transforms your digital text into physical mail that looks and feels authentic. You can choose from dozens of handwriting styles or even have your own handwriting digitized for a truly personal signature on every piece of mail you send.
Whether you are thanking a customer for a purchase, following up on a sales lead, or sending holiday cards to your entire database, you can automate the process entirely. The platform integrates directly with your existing tools like Salesforce and HubSpot, allowing you to trigger physical mail based on digital actions. It is an ideal solution for sales teams, real-estate agents, and non-profits who want to stand out in a crowded digital inbox.
Overview
Customer.io Features
- Data-Driven Segments Create dynamic groups of users based on real-time actions they take or don't take within your application.
- Visual Workflow Builder Design complex automated journeys with a drag-and-drop interface to visualize exactly how your customers receive messages.
- Multi-Channel Messaging Reach your audience wherever they are by sending emails, SMS, push notifications, and in-app messages from one platform.
- A/B Visual Testing Test different subject lines, content, or entire workflow paths to see which variations drive the best engagement.
- Transactional API Send critical system updates like password resets or purchase receipts while maintaining your brand's look and feel.
- Real-Time Analytics Track conversions and open rates instantly to understand how your automated campaigns impact your bottom line.
Handwrytten Features
- Robotic Handwriting. Send notes written by robots using real ink pens that create natural variations in pressure and style for total authenticity.
- Custom Handwriting Styles. Choose from over 30 unique handwriting styles or pay a one-time fee to digitize your own personal handwriting and signature.
- CRM Integrations. Connect your CRM to trigger handwritten notes automatically when a deal closes, a birthday arrives, or a new lead signs up.
- Bulk Sending. Upload a spreadsheet of contacts and send hundreds of personalized notes at once without spending hours writing them by hand.
- Insert Business Cards. Include your own business cards, gift cards, or custom inserts inside your envelopes to drive more value from every mailing.
- Mobile App Access. Draft and send handwritten notes directly from your iPhone or Android device while you are traveling or between meetings.
Pricing Comparison
Customer.io Pricing
- Up to 5,000 profiles included
- Unlimited emails and SMS
- Visual workflow builder
- Community support
- Standard technical setup
- Email and push notifications
- Everything in Essentials, plus:
- Custom profile limits
- Priority technical support
- Dedicated success manager
- HIPAA compliance options
- Managed deliverability services
Handwrytten Pricing
- No monthly commitment
- Access to all handwriting styles
- Standard card pricing
- Full CRM integration access
- Mobile app usage
- Bulk upload capabilities
- Everything in Pay-As-You-Go, plus:
- Discounted card pricing
- Monthly card credits
- Reduced rates on bulk orders
- Priority processing
- Rollover credits
Pros & Cons
Customer.io
Pros
- Highly flexible segmentation based on real-time events
- Intuitive visual builder for complex automation workflows
- Excellent deliverability rates for transactional and marketing mail
- Robust API for deep technical integrations
- Responsive and helpful technical support team
Cons
- Higher starting price point than basic competitors
- Steep learning curve for non-technical marketers
- Requires developer resources for initial data integration
Handwrytten
Pros
- High open rates compared to traditional direct mail
- Authentic look that is difficult to distinguish from human writing
- Seamless integration with popular platforms like Zapier and Shopify
- Wide variety of high-quality card designs available
Cons
- International postage can be expensive for global campaigns
- Custom handwriting digitization requires a significant upfront fee
- Limited control over exact character spacing in some styles