Schedule in seconds. Remember every call.
calendar0.app Productivity & Collaboration / Calendars & Scheduling
- Monthly visits
- 11.7K
- Down11.6%MoMAug 2026
- Entry price
- $8.64/mo
- Lower than 62% of peersNiche median $10/mo
- Launched
- 14mo ago
- 2025-10-05 · Est.
Traffic & revenue
- Oct 2026$57Self-reported MRR · unverified
Revenue evidence
Publicly disclosed & verified revenue figures, sorted by dateMarketing moves
Launches, search & content, referrals, promotions- Calendar0 now lets you keep or dismiss every task your meetings suggest.
@alessandro_afl · 2026-11-11 · 2 likes · 0 reposts · 28 views
- Drag a task onto your week in Calendar0 Pro and it becomes a block as long as its estimate. Drop it on the all-day row and it gets a due date instead. Would love your feedback 👇 #buildinpublic
@alessandro_afl · 2026-11-10 · 21 likes · 0 reposts · 536 views
- 24 people used Calendar0 from their AI app every day last week. 67 used it on just one day.
@alessandro_afl · 2026-11-10 · 1 likes · 0 reposts · 30 views
Launched on Uneed (#1)Launch
Calendar0 — Schedule in seconds. Remember every call.
Oct 16 · 29d agoLaunch page
Launched on Show HN (1 pts · 2 comments)Launch
Google, Outlook and iCloud in one superpowered calendar — Hi HN! I am Alessandro Afloarei and I am so happy to show you Calendar0. Calendar0 is a calendar app for the web, plus a tray/menu bar app…
Oct 14 · 31d agoLaunch page
Launched on Show HN (3 pts)Launch
Made a system tray calendar that syncs all your calendars — Hey HN! I'm the creator of Calendar0, a menubar calendar for MacOS and Windows that I've been working on for the past few months. The app…
Nov 12, 2025 · 12mo agoLaunch page
Launched on Show HN (4 pts)Launch
Calendar0 – System tray app for natural language scheduling — Hey HN, Calendar0 is: - A system tray app that lets you view your calendar instantly without opening a browser - An AI assistant to manage…
Oct 6, 2025 · 13mo agoLaunch page
Third-party reviews & case dossiers
Acquisition breakdowns, engineer reviews & open-source metrics- Post excerpt:
- Hey HN, Calendar0 is: - A system tray app that lets you view your calendar instantly without opening a browser - An AI assistant to manage everything in your calendar using natural language commands - Smart contact resolution which automatically converts names to emails using Google Workspace and checks all attendees' availability before booking - One-click
- Post excerpt:
- Hey HN! I'm the creator of Calendar0, a menubar calendar for MacOS and Windows that I've been working on for the past few months. The app is designed to make calendar management actually accessible without opening a browser every time you need to check your schedule. One of Calendar0's main goals is to eliminate the constant context-switching between multipl
- Post excerpt:
- Hi HN! I am Alessandro Afloarei and I am so happy to show you Calendar0. Calendar0 is a calendar app for the web, plus a tray/menu bar app for macOS, Windows and Linux. It shows Google, Outlook and iCloud calendars, lets you add events quickly, has booking links, and can record and transcribe calls. I started it in September 2025 as a hobby project for keepi
MCP Server & Agent Ecosystem
Agent, MCP & Developer Integration
Agent SkillTraffic sources
Traffic breakdown
Channels
- Direct40%
- Organic Search31%
- Referrals11%
- Social6%
- Other12%
Countries
- United States42%
- Germany22%
- United Kingdom11%
- Canada10%
- Czechia10%
Search
Domain authority 23Domain registered 2025-08-11
| Keyword | Monthly volume |
|---|---|
| google calendar desktop | 15.1K |
| google calendar desktop app | 13.3K |
| google calendar on desktop | 2,090 |
| kann ich meinen outlook 365 dem icloud kalender meiner tochter freigeben | 250 |
| desktopcalendar win 10 sync with google calendar | 180 |
Traffic data: Vaneform
Pricing
Trial: None · Observed 2026-11-03 · Pricing page
Entry price $8.64/mo, Lower than 62% of peers; “Calendars & Scheduling” median is $10/mo.View pricing benchmark
Pages & changes
Key pages
Weekly snapshots- Homewww.calendar0.app/
- Pricingwww.calendar0.app/pricing Snapshot 2026-11-03
Changes
No pricing, plan, or positioning changes detected since tracking started.
Design
Minimal Monochrome (Dark canvas, balanced density) featuring centered headline + cta layout and product ui screenshot / component visuals.
First-screen preview · click to zoom
First-screen pitch & conversion flow
“Google Calendar, Outlook and iCloud in one app for Mac and Windows”
Centered Headline + CTA hero structure paired with start free / sign up CTA and live generated output showcase.
Conversion path: Centered Headline + CTA + Product UI Screenshot / Component → Start Free / Sign Up · Trust bar: Live Generated Output Showcase
- Category Positioning Anchor
- Large Hero Product Shot
Palette · click to copy
- Typography
- 8.0
- Color & Contrast
- 8.0
- Layout & Spacing
- 8.0
- Craft & Polish
- 7.0
- Distinctiveness
- 6.0
Structure
- Fonts
- Inter
- Hero layout
- Centered Headline + CTA
- Primary visual
- Product UI Screenshot / Component
- Conversion CTA
- Start Free / Sign Up
- Social proof
- Live Generated Output Showcase
- Navigation
- Full-Width Top Bar
- Theme & density
- Dark · Balanced
- Corners & depth
- Medium Radius · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Minimal Monochrome
Monochrome palette with a single accent color, hairline dividers, and generous whitespace.
## Design Tokens
```css
:root {
--background: #09090b;
--surface: #151618;
--foreground: #f1f1f3;
--muted-foreground: #929296;
--accent: #e5e5e7;
--radius: 8px;
--font-heading: "Inter", ui-sans-serif, system-ui, sans-serif;
--font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}
```
Color area ratio: Background #09090B (~82%) · Surface #151618 (~6%) · Text #F1F1F3 (~7%) · Muted Text #929296 (~4%) · Accent #E5E5E7 (~1%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.
## Layout & Conversion Structure
- Hero layout: Centered Headline + CTA
- Navigation: Full-Width Top Bar
- Theme & density: Dark · Balanced
- Border radius & elevation: Medium Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Product UI Screenshot / Component
- Conversion CTA: Start Free / Sign Up · Trust bar uses Live Generated Output Showcase
- Headline hook: Category Positioning Anchor
- Hero components: Large Hero Product Shot
- Spatial layout notes: Centered Headline + CTA hero structure paired with start free / sign up CTA and live generated output showcase.
- Visual summary: Minimal Monochrome (Dark canvas, balanced density) featuring centered headline + cta layout and product ui screenshot / component visuals.
## Avoid
- Multi-stop neon gradients
- Heavy drop shadows
- More than one competing accent color
Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.
Questions & evidence
- How much does Calendar0 cost?
- Pro: €8/month, billed €96 yearly / €10 month to month; Founding Lifetime: €149once. Observed 2026-11-03. Check the source for current billing terms, usage limits and taxes.Source
- How much website traffic does Calendar0 get?
- Vaneform estimates 11.7K website visits in 2026-08. Visits can include repeat visits; this estimate does not measure paying customers or revenue.Source
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