Personal productivity and notes
Personal calendar apps
Calendar apps and widgets that display, sync, and visualize personal, family, or work events—minimal and timeline/clock views, shared family calendars, countdowns, and AI-assisted scheduling—for individuals and households managing their time.
Built for: Individuals, families, busy professionals
Projects since May 04
176
Different builders
167
Last 4 weeks vs 8 before
+10%
AI is the core
7.4%
Projects per week
Mostly mobile app (41%), web app (36%), desktop app (9.7%) · from r/SideProject, r/ShowYourApp, r/vibecoding, r/IMadeThis
Latest
- First Responders Cal — Tracks rotating shifts, time-off balances, and overtime or off-duty pay on an iPhone calendar.“First Responders Cal: an iPhone shift calendar with a weekly agenda coming in 1.5”
- Do One Job — Provides single-purpose browser tools with no login, including a timezone overlap finder for distributed teams.“I got sick of sign-up walls and bloated dashboards just to do a simple task. So I built an anti-SaaS toolbox.”
- WeekSpark — Organizes a household week with recurring events, birthday countdowns, tappable checklists and loud alarms, stored locally on the phone.“I built week calender app iOS to everyone”
- Vivid Shift Calendar — Plans rotating, night and changing work shifts in a calendar with patterns, reminders and schedule exports.“I made Vivid Shift Calendar — a shift planner for rotating work schedules”
- Room Cherry — Shows a Google Workspace room calendar as a live door display in any browser, indicating whether the room is free and what is coming up next.“I built a meeting room display for Google Calendar that runs in any browser (no App Store app)”
- Checks ICS calendar files offline and produces a review report flagging timezone, DST and floating-time issues without changing the originals.“Would an offline ICS preflight report help with your calendar handoffs?”
- Kinboard — Extracts events, deadlines, fees and checklists from school emails and documents and puts approved items on a shared family calendar with reminders.“Testers wanted: can you test my friend's school app? [parents]”
- Calendar Clock — Displays Google Calendar and Outlook events as arcs on an analog-style clock in a browser extension view.“I made an extension to keep me from procrastinating.”
- Calendito — Provides a web-based calendar tool, as suggested by its name and landing page, though the post does not describe its features.“Getting clicks from Instagram ads, but visitors leave instantly. Where am I losing them? (10 signups in 2 weeks)”
- Hands — Lets users design custom clock widgets by adjusting face, numerals, track, hands and colors, and share them via link.“I made a clock widget design app for iPhone!”
- Slots Picker — Shows multiple Outlook calendars side by side and inserts a timezone-aware list of selected free slots into an email draft.“I built a scheduling Outlook add-in for Executive Assistants but I think it could be used by anyone who schedules externals meetings?”
- Menu Bar Calendar Quick View — Shows a calendar dropdown in the macOS menu bar with today's events and reminders, and lets you create events from the panel.“[macOS] - Menu Bar Calendar Quick View 2.0 is out now!”
- KeepsDay — Tracks days until upcoming dates and days since past dates in one list, with photos, widgets, and saved memories for each event.“I couldn't find the countdown app I wanted, so I spent months building it for myself”
- calnio — Syncs events from a Notion database into an iCloud calendar.“made a free tool that syncs notion to apple calendar”
- Lifecalendar — Shows a visual grid of how much of one's life and year remains.“I vibecoded a visual representation of how much of your life and year is left”
- Countdown Dots — Displays a countdown to a chosen date as a grid of dots that fill in over time.“My first app - Countdown Dots”
- Upcoming — Counts down to personal dates with Home Screen widgets and lets invited people follow a shared countdown through iCloud.“Upcoming: count down to a trip together with free iPhone widgets and iCloud sharing”
- Shows overlapping work hours and time differences across time zones to help schedule meetings.“I made an app that actually helps me understand time zones”
- DaysToGo — Counts down to upcoming dates and counts forward from past milestones, shown in customizable home-screen widgets.“I built an app for the days you can’t wait for — and the days you don’t want to forget”
- overlaphours — Finds overlapping working hours across multiple cities and ranks meeting slots by how few people are inconvenienced.“I needed to find overlapping work hours across regions. Built this”
Most discussed
- Birdie — Shows an animated bird that flies across the screen before calendar meetings with a one-click link to join.“Bird Notifications”
- Tauri Clocks — Provides a desktop clock app with world clocks, alarms, timers and stopwatch.“Tauri Clocks — Fully vibe coded with Claude. Every line of code was generated by AI. My role was limited to guiding the process and making decisions.”
- Lets users claim a specific minute of the year by date and time, customizable with an image and song.“Built a website that solves literally no problem”
- cronwiz — Converts plain-English schedules into cron expressions for several platforms, and explains, validates, and previews runs of existing cron expressions.“I built a free AI cron expression generator that covers 7 platforms (Linux, AWS, K8s, GitHub Actions, etc.)”
- Soonish — Shows days remaining until user-chosen events and progress bars for the current day, week, month and year on an Android home screen.“Made my first ever sale — €2.99 from a stranger in the Netherlands, on an app with 19 total installs”
- Timezoners — Shows where remote team members' self-set working hours overlap across time zones on a shared board.“I built a simple timezone overlap board for remote teams”
- Claim a Day — Lets users put their name on a day of the year, with one name per day and an option to pay to take over another person's day.“Not sure why I built this, but you can now claim a day of the year and put your name on it. Your birthday's probably still open.”
- Luna Bee — Turns pasted text, voice, photos, or school and local web links into organized family schedule entries.“I spent almost a year building a family management app for moms, but I've been too terrified to launch it”
- Time Pencil — Lets users draw their day as colored arcs around a clock face and syncs with existing calendars.“You asked for a Watch+Wear OS version of my lazy clock planner: done (+24h mode & 30+ visual tweaks)”
- Shows the time remaining until upcoming calendar events as a countdown on iPhone widgets, lock screen, and Apple Watch.“My calendar says "3:00 PM". My brain wants "in 47 minutes". So I built an iOS app that does the subtraction for me — everywhere: widgets, lock screen, Apple Watch”