Report updated Apr 27, 2026
Extreme Calendar
For power users and professionals who require granular control and high-density data visualization for their daily schedules.
Overview · Full Intel report in progress
Extreme Calendar is an established business app that is a paid app. With a 4.3/5 rating from 24 reviews, it shows polarized user reception.
What is Extreme Calendar?
Current Momentum
v5.28 · 27mo ago
ZombieLast updated 814d ago. 5 versions tracked.
Competition
Rivals identification in progress
7-Day Rank Pulse 🇺🇸
BusinessNo ranking data
Rating Pulse 🇺🇸
What makes this app unique?
What Does It Look Like?
What Are The Key Features?
Offers multiple display modes including Year, Month, Week, Day, and an Upcoming Agenda list.
Syncs with standard calendar services like Google, iCloud, and Exchange while pulling contact data for birthdays and anniversaries.
Supports advanced repeating event logic, military time, ISO week standards, and visual icons for event categorization.
Designed for rapid data entry to allow users to manage busy schedules efficiently.
How much does it cost?
Who Built It?
Birdsoft
Developing high-density productivity utilities and classic card games for power users and hobbyists who prioritize functional data visualization.
Portfolio
13
Apps
What other apps does Birdsoft make?
Explore the full Birdsoft report
Portfolio breakdown, audience, momentum, and every app published by Birdsoft.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
Analysis in progress, available soon
What is the competitive landscape for Extreme Calendar?
How's The Business Market?
How does it evolve in the Business market?
Rank progression
25 active rankings tracked — 30-day window
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for Extreme Calendar
Key Takeaways
While the app offers robust customization and powerful views, users report inconsistent stability regarding sync functionality and UI responsiveness.
Where Is It Heading?
Trend analysis
Available very soon