SaaS Boat
Page Flows
UX Archive Animated
Refero Design
Curated Design
Designing UX for SaaS
Mobbin
pttrns
React Complex Tree
Pagedraw - Beta release
Most designers spend hours digging through apps, taking screenshots, and trying to reverse-engineer why something works. SaaS Boat does that work for you. We evaluate each app against Nielsen's 10 heuristics โ the gold standard in UX research โ and break down what passes, what fails, and why. You get structured, searchable evaluations for 258 apps across every category: from onboarding flows to dashboard design, error states to mobile patterns. Free to sign up. No credit card required.
SaaS Boat React Complex TreeSaaS Boat's answer
Every other design reference tool shows you what a UI looks like. SaaS Boat shows you why it was designed that way. Each of the 258 SaaS apps in the library is evaluated against Nielsen's 10 usability heuristics โ the gold standard framework in UX research โ with structured pass/fail breakdowns and written analysis notes. You're not browsing screenshots for inspiration; you're reading research that explains what works, what fails, and the reasoning behind real product decisions. No other tool does heuristic evaluation at this scale.
SaaS Boat's answer
Competitors like Screenlane, Refero, and Page Flows are screenshot galleries โ they show you what exists. SaaS Boat is a research library โ it tells you why it exists and whether it actually works. If you're a designer justifying a pattern to stakeholders, a PM trying to make a design decision without gut feel, or a developer trying to understand the UX intent behind what you're building, you need analysis, not inspiration. SaaS Boat is built for that workflow. Free to start, no credit card required.
SaaS Boat's answer
UX designers, product managers, and developers who build SaaS products and need structured design research โ not just visual inspiration. Specifically: designers benchmarking their work against real products before presenting to stakeholders; PMs looking for evidence to back design decisions; developers who want to understand the UX reasoning behind the patterns they implement. Secondary audience: UX researchers using the heuristic database for competitive analysis and design students studying real-world usability principles.
SaaS Boat's answer
SaaS Boat started from a recurring frustration: every time a design decision came up, the research process was the same โ open 10 apps, take screenshots, try to figure out why something works, repeat. There was no place that had done this work properly and made it searchable. Screenshot galleries existed, but they showed you what, not why. So I built the tool I wished existed: a structured, heuristic-evaluated library of real SaaS products โ the research done once, accessible to everyone building products.
SaaS Boat's answer
WordPress (content management and member access control), WPBakery (page builder), Gumroad (payment processing and subscription management), Google Analytics (traffic and event tracking).
SaaS Boat's answer
SaaS Boat launched in May 2026 and is in early growth, we don't yet have named enterprise customers to list.
Based on our record, React Complex Tree seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You can find the source code for it at https://github.com/lukasbach/react-complex-tree, and documentation and examples at https://rct.lukasbach.com. Source: over 3 years ago
More examples on the customizability, in-depth documentation and a typing API is available at the documentation homepage: https://rct.lukasbach.com/. Source: about 5 years ago
Page Flows - User flow design inspiration for mobile & desktop
Pagedraw - Beta release - Compile UI Mockups to React Code
UX Archive Animated - iOS apps animated user flows
Refero Design - The biggest collection of UX Patterns, UI Elements and design references from great web applications
Curated Design - Web design inspiration catalog for creators
Designing UX for SaaS - Free ebook to level up the User Experience of your SaaS