Fintech & Investing
233 startup ideas from X's best builders, sorted so you don't have to dig.
233 ideas · page 3 of 8
Consumer Apps
Account-recovery kit for when your phone (and every 2FA code) is stolen
B2B & SaaS
Parts-compatibility tool for e-bike mechanics
Marketplaces & Services
Quick wind-down service for laid-off visa holders who must leave the country fast
Hardware & Devices
Prompt-to-hardware: agents that build custom devices
Health & Fitness
Daily fitness game with streaks and leaderboards
Developer Tools
"Nerf tracker" that shows when AI models quietly get worse
AI & Agents
Agent that fills in "you have a new message" emails with the real content
Health & Fitness
Workouts for desk workers
B2B & SaaS
Automated Shopify store audits as a lead-gen service
Hardware & Devices
IKEA for local AI: build-in-a-weekend local AI kits
AI & Agents
Agent Relationship Management (ARM): the CRM for AI agents
AI & Agents
AI agent that handles cross-border tariffs and customs for consumers
Consumer Apps
IRL running game: capture turf with friends
Media & Content
Pay-to-rank livestream leaderboard where the top bidder owns the stream
Developer Tools
GitHub for normies: home for apps built by non-developers
Developer Tools
Turn GitHub repos into polished explainer landing pages
B2B & SaaS
Employee vibe checks for AI labs
AI & Agents
Niche bill-negotiator agents as a service
Media & Content
Cinematic AI film of a couple's love story for weddings
Developer Tools
Coding plugin that auto-picks the best model per task on cost
Consumer Apps
One-click removal of knockoff brands on Amazon
AI & Agents
Mutual Turing test game: human or LLM?
Hardware & Devices
At-home personalised daily newspaper printer
AI & Agents
Agent SaaS: sell the job done, not the tool
Consumer Apps
One looks-improvement app back end, three branded front ends
AI & Agents
Multiplayer vibe coding inside group chats
Developer Tools
Agency that finishes the last 20% of vibe-coded apps
Marketplaces & Services
Upwork for AI-native talent
AI & Agents
Token-efficiency consulting for AI-heavy businesses
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