Community tests

Task: Opinion ranking 'by strength' — not a single shared build prompt.

Tools: Replitv0BoltEmergentlindynxcodetaskadeopenai-agent-buildersame-newgrok-buildframergoogle-stitchantigravitysticklight

Result (as stated):

Ranked by strength: 1 Replit Agent 3; 2 v0 by Vercel; 3 Lindy; 4 NxCode; 5 Taskade Genesis; 6 OpenAI Agent Builder; 7 Bolt.new; 8 Same.new; 9 Emergent AI; 10 Grok Build Mode; 11 Framer AI Agents; 12 Google Stitch; 13 Antigravity; 14 Sticklight. Quick takes: backend-heavy → Replit; beautiful UI → v0 or Google Stitch; landing page → Framer; clone a site → Same.new.

Places we recorded: #1 Replit (#1 of 14) · #2 v0 (#2 of 14) · #7 Bolt (#7 of 14) · #9 Emergent (#9 of 14)

Conflict of interest: Author bio: 'AI Educator… DM Open for collaboration'. Not a controlled same-prompt test.

Counted in tallies with method=opinion so readers can filter. Lovable/Base44 not in the 14.

Task: Exact same e-commerce prompt; default settings; complete product page for fictional brand Northform.

Tools: LovableBoltReplitBase44Emergent

Result (as stated):

NO DECLARED RANKING in the opened post text or readable image content. Author asks 'Which one wins?'. Follow-up search from:TheoReednp for a winner post returned 0 results.

Conflict of interest: Independent tester bio; no vendor link stated.

Verified attempt including Base44 + Emergent; excluded from tallies until a declared result is found.

Task: Internal ops dashboard for Vandelay Industries: inventory/CRM table of potato-chip shipments, analytics/charts, map of shipments. Iterated with bug-fix prompts.

Tools: Replitv0LovableBolt

Result (as stated):

TL;DR as written: 'Replit was the most feature rich, well thought out, and powerful'; 'v0 was the best if you’re already a developer and want a technical interface'; 'Lovable and Bolt were pretty much objectively worse than the other two.' Final pick: 'If I were starting a new project from scratch I’d use Replit or v0.'

Places we recorded: #1 Replit (most feature rich / best finished app (qualitative)) · #2 v0 (best for developers (qualitative)) · #3 Lovable (objectively worse (tied qualitative)) · #3 Bolt (objectively worse (tied qualitative))

Conflict of interest: None stated for any vendor.

No numeric scores. Places 3 tied for Lovable and Bolt per author's wording.

Task: Waitlist landing page with email capture, DB, admin signup count; then follow-up: add company name field to form + admin.

Tools: BoltBase44Emergent

Result (as stated):

Author final: 'Emergent is still where I'd start for a real production app'; Base44 'genuinely the fastest to a demo'; Bolt 'honesty when things go wrong' but free-tier tokens burned on fixes. Explicit winners by category: Speed → Base44; Complex logic / testing evidence → Emergent; Code ownership → Bolt; Mobile → Emergent.

Places we recorded: #1 Emergent (author's production pick) · #2 Base44 (fastest demo) · #3 Bolt (code ownership; preview issues)

Conflict of interest: Strong — published on emergent.sh (vendor content).

Useful timings (Base44 ~2–5 min publish; Emergent ~16 min; Bolt ~19 min with fixes).

Task: Exact same frontend prompt; default settings; one attempt; each builds a Founder OS dashboard. Post asks 'Which one wins?'

Tools: LovableBoltv0ReplitBase44

Result (as stated):

NO DECLARED RANKING in the opened post text or readable image content. Author asks the audience which wins. Follow-up search from:Promptleague13 for a winner post returned 0 results.

Conflict of interest: Independent tester bio; no vendor link stated.

Included as a verified same-prompt attempt; excluded from tallies until a declared result is found.

Task: Complex client project management system: multi-user auth, RBAC, dashboard analytics, projects, time logging, invoices/PDF, Stripe, client portals.

Tools: Base44LovableBolt

Result (as stated):

Overall winner: Lovable. Stated metrics include build time Base44 6 min / Lovable 10 min / Bolt 4–5 min*; first-build success rate Base44 100% / Lovable 90% / Bolt 30%. Author: 'Avoid Bolt for now' due to preview/deploy failures. Category winners: Pricing Base44; AI capabilities Base44; Speed/quality split (Base44 faster, Lovable better quality); Ease Base44; Integrations Lovable.

Places we recorded: #1 Lovable (overall winner) · #2 Base44 (speed / ease / pricing winner) · #3 Bolt (30% first-build success; avoid)

Conflict of interest: Affiliate/review site; HostAdvice often monetizes tool reviews (exact affiliate status for these three UNVERIFIED on the opened page).

Detailed timed metrics. Overall ranking uses author's stated overall winner.

Task: Responsive React dashboard: sidebar, metric cards, line chart placeholder, recent activity table, mobile responsiveness, Tailwind.

Tools: v0LovableBoltclaude-code

Result (as stated):

Scores: v0 91 (8m, ~$0.75, Pass); Lovable 86 (11m, ~$0.95, Pass); Bolt.new 82 (14m, ~$1.10, Pass); Claude Code 74 (26m, ~$2.10, Pass). Winner: v0.

Places we recorded: #1 v0 (91) · #2 Lovable (86) · #3 Bolt (82)

Conflict of interest: None stated.

UI-only task; Claude Code included but not an AI app builder in our roster.

Task: Build a task tracker app. Users sign up, sign in, add tasks, mark them complete, and delete them. Store tasks in a real database. Deploy it. (single prompt, no follow-ups)

Tools: LovableBoltReplitv0

Result (as stated):

Scores: Lovable 88 (14m, ~$8, Pass); Bolt.new 82 (18m, ~$12, Pass); Replit Agent 74 (25m, ~$5.50, Pass); v0 65 (35m, $0, Fail). Winner: Lovable.

Places we recorded: #1 Lovable (88) · #2 Bolt (82) · #3 Replit (74) · #4 v0 (65 (Fail))

Conflict of interest: None stated. Site says 'Not sponsored. Not cherry-picked.'

Strongest independent same-prompt full-stack scorecard found.

Task: Slack-like app with 13 checklist features (auth, channels, messages, profile photo storage, search, typing indicators, private channels, unread badges, pins, realtime, etc.).

Tools: ConvergeLovableBoltReplitv0

Result (as stated):

Final scores (highest → lowest): Converge — 13/13; Replit — 5/13; v0 — 3/13; Bolt — 2/13; Lovable — 0/13.

Places we recorded: #1 Converge (13/13) · #2 Replit (5/13) · #3 v0 (3/13) · #4 Bolt (2/13) · #5 Lovable (0/13)

Conflict of interest: Strong — Converge is the author's product and finished 13/13 while competitors scored ≤5. Treat as vendor-adjacent.

Useful checklist detail; tallies still counted but COI flagged on the site.

Task: 96 prompts spanning domains/difficulty; 288 generated apps; 205 human raters; 1,071 pairwise comparisons after quality filtering.

Tools: ReplitBoltFirebase Studio

Result (as stated):

Pairwise win rates (Table 2): Firebase highest on all four metrics (Ease 42.5%, Trust 41.2%, Visual Appeal 45.5%, Visual Appropriateness 45.1%); Bolt second; Replit third. Authors' hierarchy: 'Firebase > Bolt > Replit'. Composite scores stated: Firebase 1.933, Bolt 1.561, Replit 1.302.

Places we recorded: #1 Firebase Studio (composite 1.933 / top win rates) · #2 Bolt (composite 1.561) · #3 Replit (composite 1.302)

Conflict of interest: Study funded by Quome Inc. (acknowledgements). Quome Cloud used for deployment.

Largest academic human study found. Does not include Lovable/v0/Base44.

Task: 53 curated real-world tasks across Easy/Medium/Hard; seven rubrics (functionality, visual appeal, error handling, responsiveness, content quality, navigation, data consistency).

Tools: LovableBoltv0Firebase StudioReplit

Result (as stated):

No numeric leaderboard table was readable in the fetched HTML (Table 1.1 / charts are images). Qualitative claims on the page: 'Lovable stands out for its reliability, functional consistency, and polished design'; 'v0 maintains the highest functional testing and navigation scores across all complexities'; 'Replit underperforms across most metrics'; 'Lovable and Bolt excel visually but lack backend robustness'; 'Firebase GenAI Studio's full-stack support' highlighted. 'No single tool demonstrates comprehensive reliability.'

Conflict of interest: Independent research firm; no vendor sponsorship stated on the opened page.

Included for methodology/quotes only — NOT counted in 1st/top-3/last tallies because numeric/place rankings were not extractable from opened text.

Task: Appointment booking app with customer accounts, staff page, DB, email API that must fail visibly, public deploy (per search-snippet summary — NOT verified from page body).

Tools: EmergentLovableBoltReplitv0Base44

Result (as stated):

NOT VERIFIED. Search snippets suggest no single clear winner and situational guidance; do not treat as scored.

Conflict of interest: Unknown.

Listed so we don't pretend it was read. Excluded from tallies.