Comparison

Notion Calendar vs MasteringTime

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

Head to head
About

Notion Calendar

Manage your schedule and meetings with a unified calendar view. Seamlessly integrate with Google Calendar and Notion to organize your work and personal life. Offers helpful widgets and multi-time zone support.

Highlights
  • Deep Google Calendar integration
  • Connects to Notion documents and projects
  • Multiple time zone support
  • Unified view across multiple calendars
  • Home Screen and Lock Screen widgets
  • Available in 12 languages
Features
Read full description

Notion Calendar lets you schedule meetings and control your time like never before. It deeply integrates with Google Calendar accounts so that all your events are synced. Along with speed, beauty, and light/dark modes, Notion Calendar includes powerful features: - CONNECTED TO NOTION — add Notion docs, projects, and timelines. - MULTIPLE TIME ZONES — pull the time zone column to the right to “travel to any city” and add more time zones. - ALL IN ONE PLACE — see one unified view across multiple calendars and auto-sync events between them. - WIDGETS — select from 6 Home Screen Widgets featuring rich previews of upcoming events, month overviews, quick-add event buttons, and more! The Lock Screen Widget lets you see what’s coming at a glance when picking up your phone. - AVAILABLE IN 12 LANGUAGES — Japanese, Korean, French, German, Spanish, Portuguese, Danish, Dutch, Finnish, Norwegian, and Swedish. It’s time.

About

MasteringTime

Features
Read full description

Mastering Time helps you stay focused, complete your daily tasks, and build consistent habits. Create study tasks, start focused work sessions, and earn points as you complete them. Track your streaks, unlock badges, and review your progress over time — all designed to keep you motivated without distractions. Features • Focus sessions with manual start and completion • Simple task list for daily planning • Points, streaks, and level progression • Rewards and badges for consistency • Daily points history • Works offline — data stays on your device Mastering Time is designed to be simple, fast, and motivating — helping you build better focus, one session at a time.

Screenshots

Notion Calendar4 screens
MasteringTime4 screens

Verdict

The call

The clearest difference is iOS requirement: Notion Calendar at 18.0 against MasteringTime's 26.2. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 9 level
Notion Calendar versus MasteringTime: the parameters behind the verdict, then further details
ParameterNotion CalendarMasteringTime
PriceFreeFree
Rating4.7 (7.8K ratings) — better—
Positive reviews39.1% of reviews—
Number of ratings7.8K — better—
Update frequencyEvery 11 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 — better26.2
Further details — not scored
Size57 MB3 MB
Age rating4+4+
DeveloperNotion Labs, Incorporatedmohammad alosaimi

Bugs and requests

Notion Calendar

Reported bugs

4 issues
  • App crashes when trying to add events
  • Syncing issues causing events to disappear or display incorrectly
  • Time zone issues leading to incorrect event times
  • Widgets not updating properly

Requested features

6 requests
  • Add monthly and weekly calendar views
  • Integrate with more calendar providers (Microsoft, Apple, etc.)
  • Improve iPad compatibility and optimize for larger screens
  • Add task management and to-do list functionality
  • Enhance customization options (colors, themes, etc.)
Show 1 more
  • Improve event creation and editing experience

MasteringTime

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Notion Calendar

No in-app purchases

None

MasteringTime

No in-app purchases

Questions

Is Notion Calendar free?
Notion Calendar is free to download, with no in-app purchases.
Is MasteringTime free?
MasteringTime is free to download, with no in-app purchases.
Do Notion Calendar or MasteringTime have ads?
Neither Notion Calendar nor MasteringTime shows ads.

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