Testimonial.to
testimonial.to
Collect, manage and embed video and text testimonials from customers.
diff ~/p/damon-chen ~/p/yasser-elsaid
Products, revenue & stack compared side by side.
Ex-Cisco engineer who built Testimonial.to and grew acquired PDF.ai into a top AI PDF tool
Both Damon Chen and Yasser Elsaid are bootstrapped and build in public. They overlap in SaaS Founders and AI Builders. Damon started in 2020 and Yasser in 2023. Damon Chen has 8 products listed on IndieMakerList vs Yasser Elsaid's 1. Damon has sold 1 product. On revenue, Damon self-reports $1.3M ARR (Testimonial.to + PDF.ai) (as of 2024) and Yasser $864K MRR (verified) (as of 2026-07). On X, Damon has about 99K followers and Yasser about 61K.
Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.
testimonial.to
Collect, manage and embed video and text testimonials from customers.
pdf.ai
AI tool to chat with, analyze and work with PDF documents; acquired by Damon for about $20K and grown from there.
chat.sh
Help center that answers customer questions directly, citing the pages it used.
pdfgen.com
Generate PDF documents with AI.
chatbase.co
Platform to build and deploy AI agents for customer support, sales and product guidance across chat, email and voice.
No tools in common in their publicly listed stacks. See the indie maker tech stack.
No stack shared publicly.
No courses, books or communities listed.
Damon Chen self-reports $1.3M ARR (Testimonial.to + PDF.ai) (as of 2024) and Yasser Elsaid self-reports $864K MRR (verified) (as of 2026-07). By these self-reported figures, Yasser Elsaid's reported monthly revenue is higher. Figures are unaudited and may cover different periods or businesses, so treat them as rough indicators.
Damon Chen has 8 products listed (including Testimonial.to, PDF.ai and Chat.sh); Yasser Elsaid has 1 product listed (Chatbase).
Damon Chen hasn't shared a stack. Yasser Elsaid uses Supabase, OpenAI and Stripe. They don't list any tools in common.
Damon Chen: San Jose, United States. Yasser Elsaid: not listed.
Damon Chen started in 2020 (6 years indie); Yasser Elsaid started in 2023 (3 years indie).
Yes, both are listed as bootstrapped founders on IndieMakerList.
Read the full story, timeline and links on Damon Chen's profile and Yasser Elsaid's profile.