Side by side
Bella vs Tilly
Both stand on ai personal assistants. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free trial ExtensioniPhoneMac+1
Bella brings calendar, email, meeting, and action management into one connected assistant. Buyers should weigh its paid plans, regional processing details, and approval controls.
Visit Bella Free plan iPhoneMacWeb
Choose Tilly if you want calendars and tasks brought into a daily plan, especially across multiple accounts. The Free plan is limited to two accounts; look at Pro for unlimited connections, conflict support, and the planning assistant.
Visit TillyThe facts
| Bella | Tilly | |
|---|---|---|
| Free plan | A free trial | Yes |
| Open source | Not published | Not published |
| Runs on | Extension, iPhone, Mac, Web | iPhone, Mac, Web |
| Lowest paid plan | Communication DNA: $99, paid once | Tilly Pro Annual: $59.99 a year |
| Plans published | 4 | 3 |
| Maker | Not published | Tilly |
| Website | withbella.io | trytilly.com |
| On ai personal assistants | #33 of 54 | #30 of 54 |
Bella: what it does well
- Combines work and personal calendars
- Provides live meeting transcription
- Supports 67 listed actions
- Requires approval for external actions
- Offers iOS, macOS, web, and extension access
What to know first
- No free plan
- Starts at $99/user/mo billed annually
- AI inference may leave selected region
- SOC 2 Type II assessment is underway
Tilly: what it does well
- Connects Google, Microsoft, iCloud, CalDAV, and subscribed ICS calendars.
- Tasks appear alongside events against available time.
- Daily brief summarizes plans, conflicts, and open time.
- Booking links reveal available times without showing guests the underlying events.
- Assistant-prepared changes require explicit approval.
What to know first
- The Free plan is limited to two calendar accounts.
- Unlimited connections and conflict support are part of Pro.
- The 14-day trial is for eligible new subscribers.