Extreme Calendar
Store data observed · From public App Store data · How we score apps
- Business
- App Store
- United States
- 4.324 ratings
- Paid $7.99
- Updated
- Observed
Ratings
Observed244.3★ average
Chart position
Observed—Not on the top charts
90-day growth
—not enough history yet
Opportunity score
AI-derived18/100Weak · low confidence
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About Extreme CalendarObserved
Extreme Calendar is a Business app by Birdsoft LLC on the United States App Store. Released Apr 29, 2011; last updated Feb 3, 2024 (version 5.28). Extreme Calendar costs $7.99 to download.
As of Oct 9, 2026, Extreme Calendar has a 4.3-star average rating from 24 ratings on the United States App Store. MRRBeam rates the success of Extreme Calendar 22/100 (early stage).
One of the most powerful calendars on iOS. Advanced views with plenty of options all designed for speed and flexibility. You wont get this much information at a glance from any other calendar, and adding events in-line allows you to get in and out and on with your busy day.
- Success score
- 22/100 Early stage
- In Business
- Outside the top 100
- Chart position
- Not on the top charts
- Developer
- Birdsoft LLC
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Extreme Calendar: common questions
- What is Extreme Calendar?
- Extreme Calendar is a Business app developed by Birdsoft LLC, available on the App Store. It was first released on Apr 29, 2011.
- How is Extreme Calendar rated?
- Extreme Calendar has a 4.3-star average rating from 24 ratings on the United States App Store as of Oct 9, 2026.
- How much does Extreme Calendar cost?
- Extreme Calendar costs $7.99 to download.
- Is Extreme Calendar successful?
- MRRBeam rates the success of Extreme Calendar 22/100 (early stage). The success score combines rating volume, chart position and average rating.
- When was Extreme Calendar last updated?
- Extreme Calendar was last updated on Feb 3, 2024 (version 5.28).
- What are alternatives to Extreme Calendar?
- Similar Business apps tracked by MRRBeam include Indeed Job Search, Microsoft Teams, DoorDash - Dasher, LinkedIn: Community & Network and Zoom Workplace.
- Is there room to build a competitor to Extreme Calendar?
- MRRBeam's opportunity score for Extreme Calendar is 18/100. Limited opening: an older app, little observable demand and a strong 4.3★ rating.