Are there any good free AI planner apps?

Truly free AI planners are rare because automatic scheduling requires significant computing power, but a few options exist. Most AI planning apps, including Orby, Motion, and Sunsama, offer free trials rather than permanent free tiers, since real calendar aware planning is expensive to run. Orby keeps entry costs unusually low with a 3-day trial followed by a $4.99 weekly plan you can cancel anytime, making it the closest thing to an affordable ongoing option. Some general tools have usable free versions: Todoist's free tier covers basic task lists, and Structured offers limited features before paywalling repeats, though neither provides genuine AI weekly planning. Tiimo has a free version with mixed reviews on its limits. If you want real AI planning without commitment, start with Orby's 3-day trial, then decide between weekly, monthly at $9.99, or yearly at $39.99.