Comparison

Shared Calendar vs Constellation Diary

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Shared Calendar

This app helps families, couples, and friends coordinate schedules, manage tasks, and share locations. It offers a shared calendar, to-do lists with assignments, and real-time location tracking for enhanced organization and communication.

Highlights
  • Shared calendar synchronization
  • Task and chore assignment
  • Real-time location tracking
  • Place alerts for arrivals/departures
  • Group chat functionality
  • Shared location map
  • Private group spaces
Read full description

Stay connected and organized with ClanPlan, the ultimate shared family organizer! This all-in-one app is perfect for families, couples, friends, classmates, and anyone looking to coordinate activities and events effortlessly. Whether you're planning a study session, a cozy birthday party, or a weekend outing, ClanPlan makes it easy to keep everyone in the loop. SHARED CALENDAR: Sync important dates and events with your clan to ensure no one misses out on plans—whether it's a family tree gathering, a couple's anniversary, or a friend's party. View your schedule as a day or month view for added flexibility. Use smart push alerts and a built-in search feature to stay on top of everything. TO-DO & CHORES: Keep every task on track with our dedicated To-Do and Chores section. Assign tasks—like grocery runs, school projects, or household chores—to any clan member, set due dates and reminders, and mark items as complete with a single tap. Create recurring chores for weekly clean-ups or daily routines, prioritize urgent tasks, and watch progress in real time. It’s never been easier to share responsibilities, celebrate completed chores, and ensure nothing falls through the cracks. REAL-TIME LOCATION TRACKER: Stay in the loop with our optional real-time location feature, which lets you see where your clan members are whenever they choose to share their whereabouts. It’s completely privacy-focused, so you’re always in control of whether and when you share your location. PLACE ALERTS: Take your coordination a step further with place alerts, which notify you the moment a family member, friend, or classmate arrives at or leaves a specific location. Whether it’s a hectic office day or a child’s after-school schedule, these alerts provide extra peace of mind. CLAN CHAT: Communication is key to great planning! With ClanPlan's chat feature, all members can stay connected in real time. Whether you're coordinating your family calendar or just sharing updates, it's never been easier to chat with your loved ones. MAP FOR SHARING PLACES: Discover, pin, and share locations that matter to your clan! From favorite hangouts to must-visit spots, the interactive map creates a shared collection of meaningful places for your group. PRIVATE GROUP SPACES: Create dedicated, private spaces for each of your groups—be it family, friends, classmates, or couples. Share ideas, plan activities, and manage everything in one cozy, convenient location. EVENT PLANNING MADE EASY: Organize everything from study groups to social events with ease! Manage RSVPs, details, and schedules effortlessly. USER-FRIENDLY INTERFACE: Designed for everyone, ClanPlan is intuitive and accessible for all ages, from young classmates to the family matriarch managing the household planner. Join the growing ClanPlan community today and transform how you plan, connect, and share time with those who matter most. Build your own family tree of shared moments and start planning with joy! Terms of Use: https://clanplan.app/terms-of-use/ Privacy Policy: https://clanplan.app/privacy-policy/ Write to support at: support@clanplan.app

About

Constellation Diary

Features
Read full description

This app allows people to write down how they feel and associate a color to it, and build their own solar system within the app. This app is designed to be almost like a diary or a place to write things down to later view.

Screenshots

Shared Calendar4 screens
Constellation Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: Constellation Diary at none against Shared Calendar's 3. Constellation Diary also leads on iOS requirement (15.1 vs 18.0). Shared Calendar's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Shared Calendar sells 3 in-app purchases, starting at $1.99 per 7 days. Constellation Diary asks for nothing beyond the download.

UpkeepUpdate frequency

Shared Calendar ships an update weekly, Constellation Diary monthly. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
Shared Calendar versus Constellation Diary: the parameters behind the verdict, then further details
ParameterShared CalendarConstellation Diary
PriceFreeFree
Rating5.0 (6 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings6 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size57 MB48 MB
Age rating4+4+
DeveloperGRAPP LLPMichael Sproul

In-app purchases

3 purchases

Shared Calendar

Subscriptions3
  • Premium Weekly3 Days trial$1.997 Days
  • Premium Monthly7 Days trial$5.991 Month
  • Premium Yearly14 Days trial$34.991 Year
None

Constellation Diary

No in-app purchases

Questions

Is Shared Calendar free?
Shared Calendar is free to download, with in-app purchases available.
Is Constellation Diary free?
Constellation Diary is free to download, with no in-app purchases.
Do Shared Calendar or Constellation Diary have ads?
Neither Shared Calendar nor Constellation Diary shows ads.
Which is updated more often, Shared Calendar or Constellation Diary?
Shared Calendar ships an update weekly, and Constellation Diary monthly. Most recently, Shared Calendar was updated on October 13, 2026 and Constellation Diary on October 5, 2026.

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