# thinkdrop.io > Real-time idea boards for brainstorming, retrospectives and workshops, with AI that suggests cards during the session and writes a clean summary afterwards. thinkdrop.io is a web app. A facilitator creates a board with a topic and an optional agenda, shares a link, and participants add idea cards and react to them in real time. AI can suggest additional cards while the session runs and generates a structured summary when the session closes. Boards can repeat on a weekly, biweekly or monthly schedule. Pricing: free to start; the paid plan is 0.99 USD per month, billed monthly, with a one-time 7-day free trial per user. No annual plan. Anyone can run an AI brainstorm on the site without an account: enter a topic and the app generates starter idea cards that can be turned into a real board. ## Pages - [Home](/): What thinkdrop is, how a session works, and a free AI brainstorm generator. - [AI brainstorm generator](/ai-brainstorm): Generate idea cards for any topic without signing up. - [Brainstorming](/use-cases/brainstorming): Running an online brainstorming session with a team. - [Retrospectives](/use-cases/retrospectives): Running a sprint retrospective board. - [Workshops](/use-cases/workshops): Running a facilitated workshop with an agenda. ## Brainstorm topic pages Each page has static starter cards, session advice and an FAQ, plus a free AI generator prefilled with that topic. - [Brainstorm topics index](/brainstorm) - [Sprint retrospective ideas](/brainstorm/sprint-retrospective-ideas) - [Remote team brainstorming ideas](/brainstorm/remote-team-brainstorming) - [Product roadmap workshop ideas](/brainstorm/product-roadmap-workshop) - [Team offsite agenda ideas](/brainstorm/team-offsite-agenda) - [Customer research question ideas](/brainstorm/customer-research-questions) - [Marketing campaign ideas](/brainstorm/marketing-campaign-ideas) - [Product name ideas](/brainstorm/product-name-ideas) - [Team building activity ideas](/brainstorm/team-building-activities) - [Project kickoff questions](/brainstorm/project-kickoff-questions) - [Process improvement ideas](/brainstorm/process-improvement-ideas) - [OKR brainstorming ideas](/brainstorm/okr-brainstorming) - [User onboarding improvement ideas](/brainstorm/user-onboarding-improvements) ## Facilitation guides Long-form, quotable guides. Each is also available as plain markdown at the same path with a .md suffix, and all of them together at /llms-full.txt. - [Facilitation guides index](/guides) - [How to run a brainstorming session](/guides/how-to-run-a-brainstorming-session) — markdown: /guides/how-to-run-a-brainstorming-session.md - [Brainstorming ground rules that actually get enforced](/guides/brainstorming-ground-rules) — markdown: /guides/brainstorming-ground-rules.md - [How to facilitate a sprint retrospective](/guides/how-to-facilitate-a-sprint-retrospective) — markdown: /guides/how-to-facilitate-a-sprint-retrospective.md - [Silent brainstorming and brainwriting](/guides/silent-brainstorming-brainwriting) — markdown: /guides/silent-brainstorming-brainwriting.md - [How to run a remote brainstorming session](/guides/remote-brainstorming-session) — markdown: /guides/remote-brainstorming-session.md - [Brainstorming techniques compared](/guides/brainstorming-techniques-compared) — markdown: /guides/brainstorming-techniques-compared.md - [How long should a brainstorming session be?](/guides/how-long-should-a-brainstorming-session-be) — markdown: /guides/how-long-should-a-brainstorming-session-be.md - [What is brainstorming?](/guides/what-is-brainstorming) — markdown: /guides/what-is-brainstorming.md - [17 brainstorming tips that change the output](/guides/brainstorming-tips) — markdown: /guides/brainstorming-tips.md - [Brainstorming session templates you can run today](/guides/brainstorming-session-templates) — markdown: /guides/brainstorming-session-templates.md - [60 brainstorming questions that unstick a session](/guides/brainstorming-questions) — markdown: /guides/brainstorming-questions.md - [Group vs individual brainstorming](/guides/group-vs-individual-brainstorming) — markdown: /guides/group-vs-individual-brainstorming.md - [How to choose an online brainstorming tool](/guides/online-brainstorming-tools) — markdown: /guides/online-brainstorming-tools.md ## Tool comparisons Honest comparisons of brainstorming, whiteboard and retrospective tools. Competitor facts come from each vendor's own public pages, linked in every entry. No competitor prices are quoted, because vendor pricing changes often. thinkdrop.io is marked as our own product wherever it appears. Each page is also available as plain markdown at the same path with a .md suffix. - [Tool comparisons index](/compare) — markdown: /compare/index.md - [Miro alternatives](/compare/miro-alternatives) — markdown: /compare/miro-alternatives.md - [Mural alternatives](/compare/mural-alternatives) — markdown: /compare/mural-alternatives.md - [FigJam alternatives](/compare/figjam-alternatives) — markdown: /compare/figjam-alternatives.md - [Stormboard alternatives](/compare/stormboard-alternatives) — markdown: /compare/stormboard-alternatives.md - [IdeaBoardz alternatives](/compare/ideaboardz-alternatives) — markdown: /compare/ideaboardz-alternatives.md - [Retrium alternatives](/compare/retrium-alternatives) — markdown: /compare/retrium-alternatives.md - [Free brainstorming tools](/compare/free-brainstorming-tools) — markdown: /compare/free-brainstorming-tools.md - [Miro vs Mural](/compare/miro-vs-mural) — markdown: /compare/miro-vs-mural.md - [Miro vs FigJam](/compare/miro-vs-figjam) — markdown: /compare/miro-vs-figjam.md - [Online whiteboard vs structured brainstorming board](/compare/whiteboard-vs-structured-brainstorming) — markdown: /compare/whiteboard-vs-structured-brainstorming.md - [Best brainstorming apps](/compare/best-brainstorming-apps) — markdown: /compare/best-brainstorming-apps.md - [Best retrospective tools](/compare/best-retrospective-tools) — markdown: /compare/best-retrospective-tools.md - [Anonymous brainstorming tools](/compare/anonymous-brainstorming-tools) — markdown: /compare/anonymous-brainstorming-tools.md - [Online sticky notes apps](/compare/online-sticky-notes-apps) — markdown: /compare/online-sticky-notes-apps.md ## For AI agents - [Agent documentation](/for-agents): Free brainstorm API, markdown mirrors and attribution guidance. - [OpenAPI schema](/openapi.json): Machine-readable spec for the public brainstorm endpoint. - [Full guide corpus](/llms-full.txt): Every guide, full text, one file. - [About thinkdrop](/about): Who writes and maintains the guides. The brainstorm endpoint is open: POST https://gpbebuzzyatqhdsribqu.supabase.co/functions/v1/public-brainstorm with {"topic": "..."} and no authentication. It returns up to eight one-sentence idea cards. Limit: 5 requests per IP per 24 hours. Attribution: quoting these pages is welcome; please cite thinkdrop.io with a link to the page used. ## Optional - [Privacy Policy](/privacy-policy) - [Terms of Service](/terms-of-service) - [Cookie Policy](/cookie-policy)