Kit (formerly ConvertKit)
kit.com
Email marketing and commerce platform built for creators, with visual automations, landing pages and paid newsletters.
diff ~/p/nathan-barry ~/p/rob-hallam
Products, revenue & stack compared side by side.
Founder of Kit (ConvertKit), bootstrapped from a failing side project to $1M+ MRR
Both Nathan Barry and Rob Hallam are bootstrapped and build in public. They overlap in SaaS Founders, Marketing & SEO Tools and Educators & Course Creators. Nathan is based in Boise, United States, Rob in Da Nang, Vietnam. Nathan Barry has 1 product listed on IndieMakerList vs Rob Hallam's 5. On revenue, Nathan self-reports $1.19M MRR (ConvertKit) (as of 2019) and Rob $22K MRR (SuperX, verified) (as of 2026-10). On X, Nathan has about 152K followers and Rob about 67K.
Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.
kit.com
Email marketing and commerce platform built for creators, with visual automations, landing pages and paid newsletters.
superx.so
X growth tool with AI content, scheduling, engagement tools and analytics.
theattentionplaybook.com
Course on getting seen on X as a founder and turning attention into customers.
canivibecodeit.com
Scoreboard of which apps AI can rebuild and which moats hold.
liftoff.so
Studio that builds MVPs for founders in two to four weeks.
No tools in common in their publicly listed stacks. See the indie maker tech stack.
No stack shared publicly.
No stack shared publicly.
Nathan Barry self-reports $1.19M MRR (ConvertKit) (as of 2019) and Rob Hallam self-reports $22K MRR (SuperX, verified) (as of 2026-10). By these self-reported figures, Nathan Barry's reported monthly revenue is higher. Figures are unaudited and may cover different periods or businesses, so treat them as rough indicators.
Nathan Barry has 1 product listed (Kit (formerly ConvertKit)); Rob Hallam has 5 products listed (including SuperX, The Attention Playbook and Can I Vibecode It?).
Nathan Barry: Boise, United States. Rob Hallam: Da Nang, Vietnam.
Nathan Barry started in 2012 (14 years indie); Rob Hallam's start year isn't listed.
Yes, both are listed as bootstrapped founders on IndieMakerList.
Read the full story, timeline and links on Nathan Barry's profile and Rob Hallam's profile.