Google Calendar vs Reply.io
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Reply.io is the stronger AI pick in Sales Engagement: it has a visibility score of 14.4 versus 2.1 for Google Calendar.
Choose Google Calendar if…
- You need ISO/IEC 27001:2022 or ISO/IEC 27017 or ISO/IEC 27018 or SOC audits or FedRAMP High coverage
- You prefer a larger, established vendor (5,000+ employees)
- follow-up reminders
- availability and booking links
Choose Reply.io if…
- You want the brand AI engines rank higher (14.4 vs 2.1)
- You need SOC 2 or GDPR coverage
- Multichannel outreach and AI-assisted engagement across email, calls, LinkedIn and more
- 14-day free trial to test core sequencing and automation
AI visibility side by side
Latest weekly run · Nov 3
| Metric | Google Calendar | Reply.io |
|---|---|---|
| Visibility score | 2.1% | 14.4% |
| Change vs last week | New | down−3.3% |
| Rank in Sales Engagement | #31 | #6 |
| Share of voice | 0.6% | 3.5% |
| Mentions this run | 4 | 23 |
| Positive in AI answers | — | 42% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Google Calendar +2.1pp · Reply.io −3.299999999999999pp over 1 weekly runs.
Engine by engine
Reply.io leads on 3 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Google Calendar | Reply.io |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | $49 / mo |
| Free plan | — | No · 14-day trial |
| Deployment | Browser-based with mobile apps; no desktop installation required | — |
| Compliance | ISO/IEC 27001:2022, ISO/IEC 27017, ISO/IEC 27018, SOC audits, FedRAMP High | SOC 2, GDPR |
| Support | — | Live chat, Email, CSM onboarding |
| Founded | 2006 | 2014 |
| Headquarters | Mountain View, California | San Jose, California, US |
| Employees | 5,000+ | 51–200 |
| Funding | — | Series A |
| Best for | Individuals with a Google account and teams using Google Workspace for shared scheduling | Founders, sales teams, and agencies who need results fast without juggling 5+ tools. |
Plans side by side
Google Calendar
Pricing not available.
Reply.io
Pros and cons
Themes from the AI answers that mention each brand
Google Calendar
- follow-up reminders
- availability and booking links
Reply.io
- Multichannel outreach and AI-assisted engagement across email, calls, LinkedIn and more
- 14-day free trial to test core sequencing and automation
- Transparent self-serve pricing with annual discounts
- Affordable, lower-cost option
- Strong choice for smaller and mid-market sales teams
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 98.8%·next run
Cite as: SlateIndex, “Google Calendar vs Reply.io”, https://slateindex.ai/compare/google-calendar-vs-reply-io, data of Nov 3, 2026. Licence: CC BY 4.0.