Calendar vs its rivals

Side-by-side comparison against Calendar's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

Calendar
This App
Core Identity
DeveloperJatisari Inovasi StudioGoogleCoziGoogleNotion Labs, IncorporatedMicrosoft CorporationSpeechify Inc.INTSIG Information Co., Ltd
CategoryProductivityProductivityProductivityProductivityProductivityProductivityProductivityProductivity
PlatformiOS, AndroidAndroid, iOSiOS, AndroidiOS, AndroidAndroid, iOSAndroid, iOSAndroid, iOSiOS
Store Metrics
Rating4.9 / 54.5 / 54.8 / 54.6 / 54.8 / 54.7 / 54.7 / 54.9 / 5
Ratings Count1,515,272129,715388,23628,82882,8041,035,361470,8191,790,119
PriceFreeFreeFreeFreeFreeFreeFreeFree
Release DateMay 26, 2016Mar 10, 2015Dec 21, 2010Sep 24, 2015Sep 14, 2017Jan 18, 2011Mar 2, 2017Aug 28, 2010
Last UpdatedDec 12, 2025May 4, 2026Apr 20, 2026May 4, 2026May 5, 2026May 4, 2026May 14, 2026Apr 10, 2026
Sentiment & Reviews
Sentimentnegativemixedmixedmixednegativeterriblenegativemixed
Score25/10045/10055/10055/10035/10015/10015/10045/100
Praises
  • Simple and effective utility for managing daily reminders and important personal tasks
  • Clean and straightforward interface design compared to competing calendar applications
  • Reliable scheduling and task management features keep daily routines organized for long-term users
  • Shared family calendar and grocery lists provide essential coordination for busy households
  • Cross-device synchronization allows users to maintain a consistent note-taking habit across multiple hardware platforms
  • Simple and clean interface design facilitates quick capture of daily thoughts and important life events
  • Relational database structure provides powerful organization for personal and professional knowledge management
  • Cross-device synchronization allows users to access notes across multiple platforms for daily productivity
  • High quality voice synthesis provides natural sounding narration for long-form reading sessions
  • Ease of Use
  • Scan Quality
Complaints
  • Catastrophic loss of historical and future calendar events following the latest update
  • Forced inclusion of religious holidays without user-controlled visibility settings
  • Post-update UI regressions and missing features frustrate users who rely on specific widget customizations
  • Severe performance lag and freezing during list entry following the latest update
  • Systematic application crashes and performance instability following the latest update disrupt the core note-taking workflow
  • Forced integration with external task management applications creates unnecessary friction and bloat for existing users
  • Frequent app crashes and UI freezing during text editing sessions on mobile devices
  • Critical synchronization failures and data loss incidents render the application unreliable for daily use
  • Deceptive marketing regarding the ability to scan and read entire books without manual page input
  • Aggressive paywall and subscription pricing models create significant friction for new users
  • Technical instability including skipped text and progress loss following the latest update
  • Aggressive Monetization
  • Data Loss & Support
Requests
  • Granular control settings to hide or remove specific holiday and religious calendars
  • Dynamic app icon that updates to show the current date of the month
  • Search functionality within the lists menu to quickly locate specific items
  • Granular text formatting options including bold, italics, and font customization are requested for better organization
  • In-note search functionality is required to locate specific keywords within long documents without manual scrolling
  • Toggle switch to disable or hide AI features from the primary interface
  • Improved stylus and pen tool support for handwriting recognition and better brush customization
  • Flexible monthly or short-term subscription tiers to avoid high upfront annual costs
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Strategic Intel
Strengths
  • System-level OS integration replaces default assistant on hardware-mapped triggers
  • Ecosystem network effects driven by native integration across Apple devices
  • Native Android integration replaces default assistant triggers
  • Workspace ecosystem network effects drive high switching costs
  • Gmail event extraction automates scheduling friction
  • Brand positioning entrenched in 'Mom's Choice' demographic
  • Shared-state architecture creates high user switching costs
  • Cross-platform accessibility via web and mobile
  • System-level Google Workspace integration increases switching costs
  • Cross-device sync reliability sustains daily habit
  • Voice-to-text transcription reduces mobile capture friction
  • Relational database engine enables complex knowledge management systems
  • Template library lowers barrier to entry for new users
  • System-level Microsoft 365 integration drives enterprise adoption
  • Free unlimited sync lowers switching costs
  • Infinite canvas supports complex project workflows
  • Celebrity voice partnerships create viral-ready brand identity
  • Conversational AI layer transforms passive consumption into active knowledge management
  • Cross-platform sync increases switching costs for multi-device users
  • Massive 300M+ user base
  • 41-language OCR support
  • Advanced multi-format conversion (Excel, Word, PPT)
Weaknesses
  • Catastrophic data loss post-update
  • Forced holiday calendar visibility
  • 0.7★ Android-iOS rating gap on majority Android base
  • Premium tier exceeds category median
  • 0.7★ Android-iOS rating gap indicates platform-specific instability
  • Static app icon fails to display current date
  • Severe input lag and freezing post-update
  • Data synchronization failures causing list duplication
  • Android-iOS feature parity gap
  • 0.7★ Android-iOS rating gap indicates platform-specific instability
  • Lack of in-note search forces manual scrolling
  • No native biometric security for sensitive notes
  • Mobile app crashes during long editing sessions
  • Forced AI elements disrupt core UI
  • Critical sync failures post-update
  • 0.7-star rating gap between iOS and Android
  • Frequent read-only mode locks
  • Annual-only subscription creates high barrier to entry
  • Manual scanning requirement contradicts instant-use marketing claims
  • Technical regressions in the latest release erode core utility
  • Aggressive paywalling of legacy free features
  • Mandatory watermarks on free tier
  • Reports of data loss and poor support responsiveness
Pricingfreefreemiumfreemiumfreefreemiumfreemiumsubscriptionsubscription
MomentumMaintenanceIntenseActiveIntenseActiveActiveIntenseActive
Update Cadence2 versions, ~74d avg5 versions, ~10d avg5 versions, ~5d avg5 versions, ~10d avg5 versions, ~5d avg5 versions, ~9d avg5 versions, 4 majors/6mo, ~11d avg5 versions, 1 majors/6mo, ~6d avg

Compare Calendar head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Calendar, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Data licensed under CC-BY-NC 4.0