37 businesses built with Polar
Every business on Build Radar that runs on Polar, with its monthly revenue, age and moats — and whether you can vibecode it. Find one. Build it with Leapd.
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- All
- AI204
- SaaS61
- Marketing58
- Content Creation44
- Productivity44
- Dev Tools35
- Education28
- Social Media23
- E-comm16
- Fintech16
- Design Tools15
- Analytics14
- Marketplace14
- Entertainment13
- Health & Fitness12
- Community9
- Sales9
- Utilities9
- Games7
- No-Code7
- Recruiting & HR6
- Security6
- Customer Support5
- Travel5
- Real Estate4
- Legal1
- News & Magazines1
- Other1
- Uncategorized1
Top businesses by revenue
| Business |
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 $20.1k/mo Chrome extension adding folders, full-text search, a prompt library, bulk export and cross-device sync to ChatGPT, Gemini, Claude and Grok. $13-17k/month revenue and growing (up from $2.9k in May), ~75% from one-time Lifetime plans plus $5.7k MRR. 40,000+ installs, 4.7/5 on the Chrome Web Store, ~47k monthly actives, 1,700+ paying customers. Privacy-first: no chat content leaves the browser. Product Hunt launch winner, Sep 2026. AI · 2 yrsKinda Build This →Chrome extension adding folders, full-text search, a prompt library, bulk export and cross-device sync to ChatGPT, Gemini, Claude and Grok. $13-17k/month revenue and growing (up from $2.9k in May), ~75% from one-time Lifetime plans plus $5.7k MRR. 40,000+ installs, 4.7/5 on the Chrome Web Store, ~47k monthly actives, 1,700+ paying customers. Privacy-first: no chat content leaves the browser. Product Hunt launch winner, Sep 2026. AI · 2 yrsKinda |
 $6.2k/mo Search+ is an AI-powered search & personalisation tool that helps turn searches into sales in ecommerce. AI · 1 yrYes Build This →Search+ is an AI-powered search & personalisation tool that helps turn searches into sales in ecommerce. AI · 1 yrYes |
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 $3k/mo Generate game-ready character animation from text or video — in seconds. AI · 9 moYes Build This → |
 $2.3k/mo GrowingUpVideo.com turns a handful of photos into a cinematic AI morphing video in 5–10 minutes. Upload 2–8 photos of a person, couple, or pet across differe… AI · 7 moYes Build This →GrowingUpVideo.com turns a handful of photos into a cinematic AI morphing video in 5–10 minutes. Upload 2–8 photos of a person, couple, or pet across differe… AI · 7 moYes |
 $1.9k/mo NotchLive is a local-first Mac app for live captions and speaker-aware meeting records. On Apple silicon, it separates remote speakers, lets you review parti… AI · 7 moYes Build This →NotchLive is a local-first Mac app for live captions and speaker-aware meeting records. On Apple silicon, it separates remote speakers, lets you review parti… AI · 7 moYes |
 $1.9k/mo Cut your Claude Code & Codex bill by ~50%. Headroom is a menu bar app that quietly optimizes all the inputs that Claude & Codex get. It trims prompt bloat, s… AI · 6 moYes Build This →Cut your Claude Code & Codex bill by ~50%. Headroom is a menu bar app that quietly optimizes all the inputs that Claude & Codex get. It trims prompt bloat, s… AI · 6 moYes |
 $1.3k/mo PainOnSocial helps entrepreneurs find validated business opportunities by analyzing Reddit communities to surface real problems - then generates AI-powered s… AI · 11 moYes Build This →PainOnSocial helps entrepreneurs find validated business opportunities by analyzing Reddit communities to surface real problems - then generates AI-powered s… AI · 11 moYes |
 Murmur turns scripts into natural speech on your Mac, with voices you clone or design yourself. One purchase, unlimited generation. Your audio never leaves the machine. AI · 8 moYes Build This →Murmur - Private, unlimited. Text-to-speech for Apple Silicon. Murmur turns scripts into natural speech on your Mac, with voices you clone or design yourself. One purchase, unlimited generation. Your audio never leaves the machine. AI · 8 moYes |
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 An AI Native company trying to reimagine the development, shipping and marketing cycle with AI first workflows AI · 6 moYes Build This →An AI Native company trying to reimagine the development, shipping and marketing cycle with AI first workflows AI · 6 moYes |
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🗣️ Founder takes
What founders are saying about the businesses on Build Radar.
another api wrapper
14I like how quickly they get traction - could have huge potential and the business looks simple to copy!
1saw the foudner discussed his growth hack on hacker news, the product is simple but it needed som strong messaging to work
21tbh, I dont know why this worked, the market was crowsed and llmlite was opensource!!! anyone knows what was the edge?
18i know someone made $3m in 6 month doing this - he sells each ebook for $48 and you cna add your own child image as teh hero character in the book
27network effect is probobly teh best moat for them
26the whole product is an API call to vision models - they nailed the execution side
55it is pure execution with almost no mote
1it turned out google is not going to replace them anytime soon .. they are getting some moat in automation side ...
1europe is mess when comes to governance and security related
simple and high margin business - but there are many players and quality of service is vey important
18I see some founders already started building this- infra is hosted by AWS so the rest is just resource manganese and delivering high uptime service
1crowded space- it needs lost of funding to get off the ground
this needs human like voice to be valuable and generic text to voice doesn't cut it
bending spoon bought them for a reson ..
literally has nothing, i don't know why people pay so much...
1AI has already made creating designs so easy that the underlying editor is becoming less valuable.
Cursor proved developers will pay for AI that writes code. The bigger opportunity is an AI-native development platform that can build, test, deploy, and maintain entire products.
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