Best add-to-calendar tool for high volume
AddCal is the best add-to-calendar tool for high volume in October 2026 ($25/month). AddCal has a free plan with unlimited calendar adds and scores 84/100 overall. Runner-up: CalendarLink ($47/month).
Prices last verified . Checked weekly.
How we pick: Cheapest plan that covers 100 events/month, 30,000 adds/month, API access and 5 seats. Same data and rubric as every other page; see the methodology.
| # | Tool | Score | Free plan | Paid from | Small | Growing | High volume | Prices checked |
|---|---|---|---|---|---|---|---|---|
| 1 | AddCal | 84 | Yes | $15/mo | Free | $15 | $25 | |
| 2 | CalendarLink | 59 | Yes · trial | $23/mo | $23 | $23 | $47 | |
| 3 | Add to Calendar PRO | 56 | No · trial 7d | $2.25/mo | $2.25 | $19 | $189 |
Costs are the cheapest plan billed monthly (or the yearly price ÷ 12 when no monthly price is published) that covers each usage scenario. "No fit" means no published plan covers it. Order: score, then name. Affiliate status is not an input.
Questions
Which add-to-calendar tool is cheapest at high volume?
AddCal is the best add-to-calendar tool for high volume in October 2026 ($25/month). AddCal has a free plan with unlimited calendar adds and scores 84/100 overall. Runner-up: CalendarLink ($47/month).
How do we pick?
Cheapest plan that covers 100 events/month, 30,000 adds/month, API access and 5 seats. Same data and rubric as every other page.