# Lazyweb vs UI Sources: Best UI Sources Alternative for Agentic Design Research

Honest, cited comparison of Lazyweb and UI Sources for product teams and AI agents choosing a design research tool.

HTML: https://www.lazyweb.com/vs/ui-sources
Markdown: https://www.lazyweb.com/vs/ui-sources.md
Updated: June 2026

## Verdict

- Choose Lazyweb if you want a free, agent-first design research library with 281k+ real app screens, app trees, Design.md-style app files, and screen-version history. [24]
- Choose UI Sources if you Use ScreensDesign (formerly UI Sources) when a human designer or founder wants to study how proven top-grossing iOS subscription apps handle onboarding and paywalls, with revenue and install context alongside the flows. [1]

## Side-by-side

| Criterion | Lazyweb | UI Sources |
| --- | --- | --- |
| Best for | Use Lazyweb when your AI agent needs to research real product patterns before designing. | Use ScreensDesign (formerly UI Sources) when a human designer or founder wants to study how proven top-grossing iOS subscription apps handle onboarding and paywalls, with revenue and install context alongside the flows. |
| Pricing | Free. [24] | Paid — single "Full Pro" tier: $39/mo, $19/wk, $199 for 6 months (~$33/mo), or $399/yr (~$33/mo). Only the monthly AI Create credit allotment changes across periods. [1] |
| Library depth | 281k+ real app screens across iOS apps and marketing pages. [24] | ~2,538 iOS apps, each captured as full end-to-end flow videos (onboarding, paywalls, App Store screens) annotated with estimated monthly revenue and installs. Smaller by raw count than the large screen libraries. [1] |
| Platform coverage | iOS apps and marketing pages today; web-app flows are not available yet. | iOS-only for the core app library, plus a "Web Onboardings" section that captures the pre-install web funnels those mobile apps run. No Android, no general web/SaaS product flows, no email. |
| MCP / API | Agent-first MCP setup across Codex, Claude Code, Cursor, Antigravity, hosted Claude connector paths, and other agentic platforms. [24] | No official MCP or public API (verified June 2026); /mcp, /api, and /docs all fall back to the homepage. Its "AI Create" generator hands off to coding agents but is not an agent-callable interface. [1] |
| Agent readiness | Built for agents first, with skills that generate competitive analysis and large research reports. | Low for programmatic use: with no MCP server or API, an AI agent cannot query its screens, flows, or revenue data — a human must browse the web UI behind a Pro login. |

## What UI Sources does well

- Pairs full onboarding/paywall flow videos with estimated monthly revenue and installs — useful for benchmarking subscription apps, not just admiring visuals
- Curated, full-journey video capture of top-grossing iOS apps organized by pattern (onboarding, paywall, permissions), plus an Animation Explorer
- Captures the web onboarding/quiz funnels mobile apps run before install — a growth-focused angle most galleries skip
- An "AI Create" generator turns researched patterns into first-draft screens and exports them for handoff to coding agents

## Where UI Sources is limited

- No official MCP server or public API, so AI coding agents cannot query the library directly — unlike competitors Mobbin and Nicely Done, which publish official MCP servers
- iOS-only core library (plus those apps' web funnels); no Android, no general web/SaaS product flows, no email coverage
- Smaller library by raw count (~2,538 apps) than screen libraries indexing hundreds of thousands of screens
- No genuinely free working tier — logged-out browsing shows blurred screens behind "Unlock Pro," and real access starts at $19/week

## Where Lazyweb shines

- Free access makes it easy to start without buying a seat before research begins.
- Agent workflows can pull references, app trees, and structured design context instead of relying on generic taste.
- Screen-version history lets agents see how a real product's UI evolved over time, not just one snapshot.

## Where Lazyweb is limited

- Lazyweb does not yet have web-app flows; flows are mobile-first today.
- Human-facing advanced filters are thinner than some paid human-first libraries.
- The product is intentionally agentic-first, so purely manual browsing may feel less polished than specialist galleries.

## What people say

Independent user feedback is thin and somewhat dated. The clearest signal is a Product Hunt page with just 2 reviews (4.5/5), where designers praise it as a useful inspiration library for studying real user journeys and the "user's POV" via screen-by-screen flows. Elsewhere it appears only as a brief, neutral line-item in "Mobbin alternatives" listicles, typecast as good for component-level pattern research. There is essentially no discussion on Reddit or Hacker News and no presence on G2, Capterra, or Trustpilot, so it lacks third-party validation. Concrete criticism centers on freshness: a reviewer flagged videos as unavailable, the library is widely called smaller and less current than Mobbin, and the brand's X account looks dormant.

**What people praise**

- Useful for studying end-to-end user journeys and the user's POV, helped by screen-by-screen videos of people going through the app
- Screenshots are well-organized into clear flows
- Positioned in roundups as good for component-level pattern research — how different apps implement the same UI
- Microinteraction videos called out as handy while prototyping, plus App Store screenshots for marketing inspiration

**Common complaints**

- A reviewer reported the core video feature broken/unavailable, undercutting the main "watch real user journeys" pitch
- Widely described as a much smaller, less comprehensive library than Mobbin
- Maintenance doubts: the brand's X account appears dormant, reinforcing a "lightly updated" impression
- Almost no independent discussion (no Reddit, HN, or G2/Capterra/Trustpilot), so little social proof

**How people compare it**

- Consistently framed as a lighter-weight Mobbin alternative — niche on component patterns and real-app analysis, while Mobbin is seen as larger, more current, and more powerful
- Often pitched as a cheap, low-commitment option (older listings cite ~$8.25/mo with a free tier), though live pricing is now higher; affordability was its main draw against pricier libraries
- Free-tier nuance recurs: reviewers note individual listings were free while the curated/category view was paid
- Compared against free options (UI.live, UXArchive, Banani) and broader platforms (Dribbble, Page Flows), where newer rivals add AI search and bigger asset libraries it lacks

## Related comparisons

- [Lazyweb vs UX Archive](https://www.lazyweb.com/vs/ux-archive) · [markdown](https://www.lazyweb.com/vs/ux-archive.md)
- [Lazyweb vs Pageflows](https://www.lazyweb.com/vs/pageflows) · [markdown](https://www.lazyweb.com/vs/pageflows.md)
- [Lazyweb vs Userflows](https://www.lazyweb.com/vs/userflows) · [markdown](https://www.lazyweb.com/vs/userflows.md)
- [Lazyweb vs Mobbin](https://www.lazyweb.com/vs/mobbin) · [markdown](https://www.lazyweb.com/vs/mobbin.md)

## Sources

Every claim above is sourced. Follow a link to verify it yourself.

1. [ScreensDesign — Pricing](https://screensdesign.com/pricing) — Official pricing page · screensdesign.com · Primary source for live June 2026 pricing. Single "Full Pro" tier with Weekly $19, Monthly $39, 6 Months $199 (~$33/mo), Annual $399 (~$33/mo); credits 50/wk, 200/mo, 1,200/6mo, 2,400/yr. No "free" wording present. Read via rendered browser including clicking each billing toggle.
2. [ScreensDesign — Library](https://screensdesign.com/library) — Official product page · screensdesign.com · Confirms live library count "Search 2,538 apps," per-app metadata (revenue, installs, rating, release date, developer, pattern tags, Similar Apps, App Insights), and the blurred-screen "Unlock Pro" / "Free preview" free-tier behavior.
3. [ScreensDesign — Web Onboardings](https://screensdesign.com/web-onboardings) — Official product page · screensdesign.com · Shows that "Web Onboardings" = the web onboarding funnels of mobile apps (with revenue/install signals and "Open" links to live pages), not general web-app product flows. Key for accurate platform-coverage claim.
4. [UI Sources — Product Hunt](https://www.producthunt.com/products/ui-sources) — Product Hunt · producthunt.com · Legacy "UI Sources" brand. Launch history (2018, 2.0 in 2020), tagline "Mobile Design Patterns and Interactions," and the only substantive user comments found (both brief, positive).
5. [Best Mobbin Alternatives for UI Inspiration in 2026 | Inspo AI](https://www.inspoai.io/blogs/mobbin-alternatives) — Blog · inspoai.io · Lists UI Sources as #7 Mobbin alternative, 'Best for Component-Level Patterns' — neutral, shallow mention with no pros/cons or pricing. “UI Sources catalogs real-world UI components with context around how different apps implement the same patterns. Useful for detailed component research.”
6. [UI Sources Alternatives: Top 12 UI Design Tools & Similar Apps | AlternativeTo](https://alternativeto.net/software/ui-sources/) — Review site · alternativeto.net · No user reviews/comments for UI Sources itself; community 'likes' favor alternatives (Dribbble 67, Layers 14, UI.live 9, Supahero/Mobbin 7), signaling low relative engagement.
7. [Best MCP Servers for Designers (Toools.design)](https://www.toools.design/blog-posts/best-mcp-servers-for-designers) — Third-party review · toools.design · Negative-signal evidence for the MCP question: roundup of design MCP servers includes Mobbin/Figma/etc. but not ScreensDesign.
8. [Mobbin MCP](https://mobbin.com/mcp) — Official MCP/API docs · mobbin.com · Competitor context: Mobbin publishes an official MCP server (and API docs) for AI agents over its app-screen library — the agent-readiness bar ScreensDesign does not meet.
9. [Mobbin MCP & API Documentation](https://docs.mobbin.com/overview) — Official competitor MCP/API docs · docs.mobbin.com · Primary proof Mobbin's MCP is official (not just the marketing page). Strengthens the limitation claim that competitors publish official MCP servers. Mobbin advertises 621,500+ screens / 142,200+ flows — relevant context vs Lazyweb's library.
10. [Nicely Done — MCP Server](https://nicelydone.club/mcp) — Official competitor MCP page · nicelydone.club · Primary source confirming Nicely Done's official MCP (140K-215K screens, 12 tools, works with Claude/Cursor/VS Code, included with Pro). Directly supports the 'competitors Mobbin and Nicely Done publish official MCP servers' limitation.
11. [ScreensDesign — homepage](https://screensdesign.com/) — Official product page · screensdesign.com · Canonical site after uisources.com 301-redirected to screensdesign.com. Confirms positioning ("2450+ iOS apps with full videos, paywalls, onboarding flows, store screens, revenue signals"), nav sections, and the Create/AI-agent handoff language. Read via rendered browser (SPA).
12. [uisources.com (redirect)](https://uisources.com) — Official product page · uisources.com · Establishes the rebrand: uisources.com and www.uisources.com both 301-redirect to screensdesign.com.
13. [Mobbin Launches MCP Server (BusinessWire press release, May 2026)](https://www.businesswire.com/news/home/20260511053592/en/Mobbin-Launches-MCP-Server-Giving-AI-Tools-621500-Real-App-Screens-to-Reference) — Press release · businesswire.com · Dates Mobbin's official MCP launch to ~May 11-12 2026 with 621,500 screens. The researcher's profile understated this; if the page compares agent-readiness, this is the authoritative competitor datapoint.
14. [ScreensDesign — SoftwareSuggest](https://www.softwaresuggest.com/screensdesign) — Directory listing · softwaresuggest.com · Secondary. Cites 1,500+ iOS apps, 40 new weekly, Tallinn-based, email support, and explicitly "No reviews yet." Some pricing here is stale vs the live site.
15. [bigmongolian — UI Sources review](https://bigmongolian.com/review/ui-sources/) — Directory listing · bigmongolian.com · Secondary. Older listing surfaced in search referencing a low "$8.25/month" PRO price and a free plan; could not be fetched directly (TLS error), included for transparency as a stale data point.
16. [Best UI Sources alternatives (2025) | Product Hunt](https://www.producthunt.com/products/ui-sources/alternatives) — Product Hunt · producthunt.com · Confirms modest engagement (46 followers, 4.5 from 2 reviews) and positions UI Sources as a niche real-app-analysis tool next to higher-rated Mobbin (4.8, 36 reviews) and Refero (4.9, 16 reviews).
17. [GenDesigns vs ScreensDesign comparison](https://gendesigns.ai/compare/screens-design) — Third-party review · gendesigns.ai · Secondary (a competitor's comparison). Source for free-tier detail (10 one-time non-renewing Create credits), Figma/HTML-Tailwind export, monthly credit reset, and 2,200+ flows. Treat pricing here ($29) as stale.
18. [Sleek — ScreensDesign alternative](https://sleek.design/alternatives/screensdesign) — Third-party review · sleek.design · Secondary. Corroborates free tier (10 one-time credits, 2,000+ apps with blurred screens, basic search), AI Create description, and Figma-export-gated-to-Pro framing.
19. [Mobbin VS UI Sources - compare differences & reviews? | SaaSHub](https://www.saashub.com/compare-mobbin-vs-ui-sources) — Review site · saashub.com · Comparison page exists but contains no substantive user reviews or ratings for either tool — illustrates how thin the review footprint is.
20. [Free Mobbin and Appshots Alternatives for UI references | Medium (Vlad Solomakha)](https://medium.com/@vpznc/free-mobbin-and-appshots-alternatives-for-ui-references-990d10f9e01f) — Blog · medium.com · Neutral mention; praises App Store screenshots for marketing inspiration and microinteraction videos for prototyping; no criticism, no pricing. “video recordings of microinteractions which are useful while prototyping”
21. [UI Sources | Best tools for Inspiration & Benchmarking in 2025 | Zefi.ai](https://www.zefi.ai/tools/ui-sources) — Blog · zefi.ai · Neutral tool profile: lists benchmarking/microinteraction-analysis pros but explicitly notes no pricing disclosed, limited feature detail, and no user reviews/ratings.
22. [UI Sources — Evernote.Design](https://www.evernote.design/post/uisources/) — Blog · evernote.design · Short, positive-toned curated writeup; no criticism, no pricing, no user ratings — descriptive rather than evaluative. “Get real product insights from the best designed and top grossing apps on the App Store today.”
23. [UI Sources (@uisources) / X](https://x.com/uisources) — X · x.com · Official X account appears dormant (search indicates last meaningful activity ~2018; profile now gated behind login, returned HTTP 402). Reinforces 'lightly maintained / not actively updated' impression rather than active user sentiment.
24. [Lazyweb](https://www.lazyweb.com/) — Lazyweb product page · lazyweb.com · Free design research library for agents, screenshots, app trees, and research workflows.
25. [Lazyweb MCP install](https://www.lazyweb.com/mcp-install) — Lazyweb setup page · lazyweb.com · Agentic setup path for Codex, Claude Code, Cursor, Antigravity, and other MCP clients.