Kurumaki Calendar
Store data observed · From public App Store data · How we score apps
- Productivity
- App Store
- United States
- 4.533 ratings
- Paid $1.99
- Updated
- Observed
Ratings
Observed334.5★ average
Chart position
Observed—Not on the top charts
90-day growth
—not enough history yet
Opportunity score
AI-derived12/100Weak · low confidence
Made Kurumaki Calendar? Add a “Tracked in Productivity” badge to your site
About Kurumaki CalendarObserved
Kurumaki Calendar is a Productivity app by LITTLEN STAR Inc. on the United States App Store. Released May 11, 2011; last updated Dec 4, 2025 (version 2.9.11). Kurumaki Calendar costs $1.99 to download.
As of Oct 12, 2026, Kurumaki Calendar has a 4.5-star average rating from 33 ratings on the United States App Store. MRRBeam rates the success of Kurumaki Calendar 24/100 (early stage).
Long seller app in Japan since 2011. ・ You can see the current month and the following month continuously. ・ Your schedule will not be divided by the month boundary. ・ You always see yours appointments through six weeks. ・ Calendar color selection settings. ・ Event color selection settings.
- Success score
- 24/100 Early stage
- In Productivity
- Outside the top 100
- Chart position
- Not on the top charts
- Developer
- LITTLEN STAR Inc.
App Store screenshotsObserved
Loading the full report…
Top Productivity apps
The most successful Productivity apps MRRBeam tracks in the United States.
Kurumaki Calendar: common questions
- What is Kurumaki Calendar?
- Kurumaki Calendar is a Productivity app developed by LITTLEN STAR Inc., available on the App Store. It was first released on May 11, 2011.
- How is Kurumaki Calendar rated?
- Kurumaki Calendar has a 4.5-star average rating from 33 ratings on the United States App Store as of Oct 12, 2026.
- How much does Kurumaki Calendar cost?
- Kurumaki Calendar costs $1.99 to download.
- Is Kurumaki Calendar successful?
- MRRBeam rates the success of Kurumaki Calendar 24/100 (early stage). The success score combines rating volume, chart position and average rating.
- When was Kurumaki Calendar last updated?
- Kurumaki Calendar was last updated on Dec 4, 2025 (version 2.9.11).
- What are alternatives to Kurumaki Calendar?
- Similar Productivity apps tracked by MRRBeam include ChatGPT, Muse from Meta, Google Gemini, Gmail - Email by Google and Grok AI.
- Is there room to build a competitor to Kurumaki Calendar?
- MRRBeam's opportunity score for Kurumaki Calendar is 12/100. Limited opening: an older app, little observable demand and a strong 4.5★ rating.