We've been tracking Calendar since 2021. 449 products indexed. The trajectory tells you where builders are investing and where the market sees opportunity.
Below: launch volume by year, engagement patterns by quarter, and the products that defined each period.
Market Direction
The Calendar category has been cooling over the past 6 years of tracked data. Total launches went from 72 in 2021 to 23 in 2026.
Average engagement ratio across all Calendar launches: 0.27. Products above that line tend to solve a specific, painful problem. Products below it often entered a crowded space without clear differentiation.
Peak Activity
Calendar peaked in 2023 with 129 launches. That was 3 years ago. The decline since then could signal market consolidation, saturation, or attention shifting to adjacent categories.
Engagement Quality
Average engagement per product has held steady around 0.27 across the full dataset. The audience for Calendar tools is consistent. Engagement doesn't rise or fall with volume, which suggests a stable base of interested users.
Strongest Quarter
The highest-performing quarter was Q3 2024, with an average interest score of 266 across 17 launches. Making Today led that quarter.
B2B vs B2C Split
342 B2B launches (76%) vs 107 B2C (24%) across the full Calendar dataset. Calendar leans B2B, but a meaningful share of products target individual users.
Year by Year
2021: 72 launches. Average interest: 167. Average engagement: 0.22. Top launch: Cron (1,174 interest).
2022: 65 launches (-10% vs 2021). Average interest: 178. Average engagement: 0.30. Top launch: Amie (1,230 interest).
2023: 129 launches (+98% vs 2022). Average interest: 137. Average engagement: 0.25. Top launch: Cal.ai Email Assistant (899 interest).
2024: 80 launches (-38% vs 2023). Average interest: 183. Average engagement: 0.27. Top launch: TidyCal 3.0 (935 interest).
2025: 80 launches (0% vs 2024). Average interest: 137. Average engagement: 0.31. Top launch: Subscription Day (742 interest).
2026: 23 launches (-71% vs 2025). Average interest: 118. Average engagement: 0.21. Top launch: Meet-Ting (292 interest).