{
 "study_id": "aibm-h01-booking-app-ai-builders",
 "slug": "one-booking-app-three-ai-builders",
 "title": "Hands-on: one booking app, three AI builders",
 "type": "hands_on_test",
 "edition": "2026-09-26",
 "first_published": "2026-09-26",
 "edition_published": "2026-09-26",
 "population": "Lovable, Replit and Emergent, each on its free plan with a new account, given the same prompt word for word.",
 "population_short": "3 builders, 1 run each",
 "selection": "Three AI app builders from our catalogue that build a working app with a database from a prompt.",
 "measurement_period": {
  "start": "2026-09-26",
  "end": "2026-09-26"
 },
 "headline": {
  "text": "first versions let ten simultaneous bookings into an eight-spot class (check T05)",
  "numerator": 2,
  "denominator": 3,
  "metric": "t05_fail_first_version"
 },
 "metrics": [
  {
   "id": "checks",
   "label": "checks per builder, written down before the first build",
   "numerator": 18,
   "denominator": null
  }
 ],
 "limitations": [
  "One run per builder on one day.",
  "Free plans only.",
  "The builders' affiliate relationships are listed in results.json (Lovable's started after the test).",
  "The full measurement log contains admin passwords of the test apps and is not published."
 ],
 "method_url": "#how-we-tested",
 "evidence_url": "#evidence",
 "verification": {
  "last_verified": "2026-09-26"
 },
 "next_full_recheck": "re-test after a relevant product change; repeat runs are planned as a protocol series",
 "schema": "aibm-research-manifest/1",
 "files": [
  {
   "name": "results.json",
   "url": "/research/one-booking-app-three-ai-builders/data/2026-09-26/results.json",
   "bytes": 11865,
   "sha256": "10aae28cb5803d8c2e21cd48604668c609d99dfb63aa24141d77a2ab1b752f5c"
  }
 ],
 "author": {
  "name": "Daniel Haket",
  "url": "https://aibuildermarketplace.com/about/",
  "email": "daniel@aibuildermarketplace.com"
 },
 "reviewer": null,
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/",
  "scope": "Our own data, analysis, tables and charts. Quoted vendor text and screenshots of vendor pages remain the vendor's; we reproduce them as evidence."
 },
 "contact": "daniel@aibuildermarketplace.com",
 "corrections": [],
 "fingerprint": "855eb60f84cb4177"
}