Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 BearA powerfully simple Markdown note taking app to capture, write, and organize your life | ReviewsNone yetWrite one for Bear | Lowest paid plan$2.99per month, or $29.99 per yearPro, as of October 23, 2026 | Free planYes | Free trial7 days | Public APIYes | Runs onmacOS, iOS | Main features
|
 Cal.comThe better way to schedule your meetings | ReviewsNone yetWrite one for Cal.com | Lowest paid plan$12per user per month, billed yearlyTeams, as of October 23, 2026 | Free planYes | Free trial14 days | Public APIYes | ||
 CalendlyAll of the work around meetings, handled in one place | ReviewsNone yetWrite one for Calendly | Lowest paid plan$10per seat per month, billed yearlyStandard, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs oniOS, Android | |
 CapacitiesA home for everything you think, learn, and create | ReviewsNone yetWrite one for Capacities | Lowest paid plan$9.99per month, billed yearly at $119.88Capacities Pro, as of October 23, 2026 | Free planYes | Free trialYes | Public APIYes | ||
 CraftYour space for notes, tasks, and big ideas | ReviewsNone yetWrite one for Craft | Lowest paid planSee plans | Free planYes | Free trialNot confirmed | Public APIYes | Runs onmacOS, Windows, Web, iOS, Android, visionOS, Chrome extension | |
 DoodleConnects your team's calendars, coordinates meetings automatically, and protects the time your people need | ReviewsNone yetWrite one for Doodle | Lowest paid plan$16per seat per month, billed annuallyTeam, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onNot confirmed | |
 EvernoteRemember everything and tackle any project with your notes, tasks, and schedule all in one place | ReviewsNone yetWrite one for Evernote | Lowest paid plan$8.25per month, billed annually at $99 a yearStarter, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onWeb, macOS, Windows, iOS, Android, Chrome extension | |
 KoalendarScheduling made simple | ReviewsNone yetWrite one for Koalendar | Lowest paid plan$9.99Pro, as of October 28, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs oniOS, Android, Chrome | Main features |
 LogseqA privacy-first, open-source knowledge base | ReviewsNone yetWrite one for Logseq | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onmacOS, Windows, Linux, iOS, Android, Web | Main features |
 ObsidianThe free and flexible app for your private thoughts | ReviewsNone yetWrite one for Obsidian | Lowest paid plan$4per user per month, billed annuallySync, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | ||
 ReflectAn open-source note-taking app with daily notes, backlinks, and local Markdown files | ReviewsNone yetWrite one for Reflect | Lowest paid planSee plans | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onmacOS, iOS, Chrome extension | Main features |
 SetmoreOrganize your business with 24/7 automated online booking, reminders, payments, and more. | ReviewsNone yetWrite one for Setmore | Lowest paid planSee plans | Free planYes | Free trialNot confirmed | Public APIYes | Runs oniOS, Android, Windows, macOS | |
 SimplenoteThe simplest way to keep notes, light, clean, and free. | ReviewsNone yetWrite one for Simplenote | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs oniOS, Android, macOS, Windows, Linux, Web | Main features |
| SimplyBook.meAn all-in-one online booking system for service-based businesses. | ReviewsNone yetWrite one for SimplyBook.me | Lowest paid planNot confirmed | Free planYes | Free trial14 days | Public APIYes | ||
 Standard NotesA free, secure note-taking app with end-to-end encryption and cross-platform syncing on unlimited devices | ReviewsNone yetWrite one for Standard Notes | Lowest paid plan$81per yearProductivity, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs on | |
 TidyCalYour booking page, ready in minutes | ReviewsNone yetWrite one for TidyCal | Lowest paid plan$12per month, billed monthlyPro, as of October 23, 2026 | Free planYes | Free trialNot confirmed | Public APIYes | Runs on | |
 UpNoteA clean and beautiful app for writing and organizing notes. | ReviewsNone yetWrite one for UpNote | Lowest paid planNot confirmed | Free planYes | Free trialNot confirmed | Public APINot confirmed | Runs onMac, Windows, Linux, iOS, Android | Main features |
 YouCanBookMeThe online scheduling solution made for small to midsize businesses | ReviewsNone yetWrite one for YouCanBookMe | Lowest paid planSee plans | Free planYes | Free trial14 days | Public APIYes | ||
 zcalBeautiful scheduling pages your clients will love | ReviewsNone yetWrite one for zcal | Lowest paid plan$7per user per month, billed annuallyPro, as of October 23, 2026 | Free planYes | Free trial14 days | Public APINot confirmed | Runs on | |
 Zoho BookingsAI-powered appointment scheduling software | ReviewsNone yetWrite one for Zoho Bookings | Lowest paid plan$6per user per month, billed annuallyBasic, as of October 23, 2026 | Free planYes | Free trial15 days | Public APIYes |
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a free plan. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed