MINUS Calendar is an AI-powered scheduling utility for iOS that converts voice, text, and images into calendar events.
The App DNA
What makes this app unique?
Users hire the app to eliminate the manual data-entry friction of traditional calendar apps, allowing them to capture appointments from diverse sources in seconds.
For Individuals seeking to reduce manual data entry in their daily scheduling through AI automation.
Key features
AI-driven natural language processing converts spoken commands into calendar events.
AI parses pasted email or chat text to extract and format event details automatically.
OCR and AI extraction of event data from photos of posters, flyers, and invitations.
How much does it cost?
Freemium model anchored at 400 JPY/month, with a 17% discount for annual commitment to drive long-term retention.
Velocity
Maintenance developmentUX improvementsplatform expansionShow more...
The app currently operates at a maintenance cadence, with only one release identified in the last six weeks. Development is focused on utility improvements, including widget integration and expanded platform support. There is no evidence of a high-frequency update cycle or live-ops activity. Future updates appear to be limited to periodic performance and compatibility maintenance.
Who built it?
User Sentiment
What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for MINUSカレンダー：AIカレンダーで予定を2タップ作成
How's the Lifestyle market?
MINUS Calendar competes in the Lifestyle category as a new entrant, currently lacking the established rating volume of incumbents like CalenGoo. The 400 JPY/month price point positions it as a premium utility, requiring high extraction reliability to justify the cost against free, feature-rich alternatives.
Read the market outlookThe rivals identified
By Gunia UG (haftungsbeschränkt)
CalenGoo is a direct competitor in the productivity space, offering robust calendar and task management that targets the same power-user demographic seeking efficient scheduling.
- Features a mature, battle-tested direct sync engine that ensures reliable cross-platform calendar data consistency.
- Offers deep task-in-event integration, allowing users to manage complex workflows within a single interface.
- Provides extensive customization options for calendar views that cater to professional power users' specific needs.
2023 ColorCal USPS calendarContender
2025 ColorCalContender
ShiftCal: Shift Schedule MakerContender
DayBlocks - Visualize TimeContenderUnlock the head-to-head verdict: where this rival wins, and where it loses.
Access the full report for freeThe Analyst's Read
Key takeaways for MINUSカレンダー：AIカレンダーで予定を2タップ作成
Where is it heading?
The productivity market is consolidating around AI-native tools, placing MINUS in a high-risk, high-reward position. Without established user trust, the app must prove its extraction accuracy immediately to prevent churn to more feature-rich incumbents.
- The app launched recently with a specialized AI focus, but lacks the user-base momentum to challenge incumbents yet.
The SWOT
- Multimodal AI input reduces scheduling friction
- B2B distribution via professional tool integrations
Next best moves
Ship high-accuracy OCR validation because image-to-schedule is a core differentiator → increase conversion
+ 1 more prioritized moveThe counter-intuitive read
The app's reliance on manual AI triggers is a liability…
Read the full takeFeature gaps
Deep task-in-event integration (available in CalenGoo) +1
Since the last report: The app has pivoted from a growth-oriented feature expansion strategy to a quality-focused defensive strategy, prioritizing extraction accuracy and price validation.
Bottom line
MINUS Calendar offers a compelling AI-first input mechanism, but its success hinges on extraction reliability, so the PM should prioritize accuracy testing over feature expansion to build user trust.
Unlock 1 critical friction, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeSources
- [1] App Store, source
Report last updated