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Cal ID

Schedule and monetize meetings for free

★★★★★ 5.0/5
FactScore™ 47.7
VS

Stella AI

Your go-to productivity tool on iMessage and WhatsApp

★★★★☆ 3.8/5
FactScore™ 26.2

Updated February 2026

Cal ID Stella AI
Rating 5.0★ 3.8★
Reviews 8 4
Pros 7 0
FactScore™ 47.7 26.2

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

👑
47.7
Cal ID FactScore™
★ Cal ID wins on FactScore™
26.2
Stella AI FactScore™

Pros & Cons

Only in Cal ID — Pros

Custom schedules Easy scheduling Email and whatsapp reminders Minimalistic design Payment integration Team collaboration Workflow automation

Both tools — Pros

—

Only in Stella AI — Pros

No unique pros listed

Only in Cal ID — Cons

Custom branding Event pricing would be a nice feature

Both tools — Cons

—

Only in Stella AI — Cons

—

Details

Cal ID Stella AI
Categories Calendar apps, Scheduling software, Meeting software Scheduling software, AI Chatbots, Writing assistants
Platforms Web Web
Became Popular November 10, 2025 October 3, 2024
Website cal.id yourstella.ai

Who Should Pick Which?

Choose Cal ID if...

  • Custom schedules
  • Easy scheduling
  • Email and whatsapp reminders

Choose Stella AI if...

  • No unique pros listed

With a FactScore™ of 47.7 vs 26.2, Cal ID leads in community reception. Cal ID uniquely offers Custom schedules and Easy scheduling, while Stella AI stands out for No unique pros listed.

3

What Users Say

Cal ID

A
Alokin Nov 19, 2025
★★★★★

better pricing and power usage.Simplier and better name.

Stella AI

I
Isaac Feb 3, 2025
★★★★★

It's fascinating how far AI can be integrated in our personal workflow. And this is just the beginning!

R
r.shb017 Feb 2, 2025
★★☆☆☆

The idea behind Stella AI is fundamentally interesting, especially since many of us use WhatsApp constantly and would appreciate an assistant that interacts seamlessly. However, the app still needs...

D
Delfin Aug 17, 2025
★★★☆☆

Stella is a promising idea with good potential as a virtual assistant. However, in the practice it felt slow, inaccurate with reminders and scheduling.

Frequently Asked Questions

Which is better, Cal ID or Stella AI?

Based on FactScore™, Cal ID leads with a score of 47.7 vs 26.2. Cal ID has a higher rating of 5.0★ compared to 3.8★.

What are the pros of Cal ID compared to Stella AI?

Cal ID uniquely offers: Custom schedules, Easy scheduling, Email and whatsapp reminders, Minimalistic design, Payment integration.

What are the pros of Stella AI compared to Cal ID?

Stella AI uniquely offers: No unique pros listed.

Is Cal ID better rated than Stella AI?

Cal ID is rated 5.0★ from 8 reviews. Stella AI is rated 3.8★ from 4 reviews.

What is the FactScore™ of Cal ID and Stella AI?

FactScore™ weighs rating and review volume together. Cal ID scores 47.7 and Stella AI scores 26.2.

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