Sincere - Turn Handwritten Care into Lasting Change
Sincere is the easiest way for businesses and non-profits to create personalized postcarding and letter-writing campaigns with quantifiable outcomes. Over 10 million people engaged through authentic, handwritten outreach.
Features
- Personalized postcard and letter-writing campaigns
- User-friendly interface for staff and volunteers
- Campaign tracking with measurable results
- Trusted by leading nonprofits and advocacy organizations