
Calendly
Acuity Scheduling
TidyCal
SavvyCal
Doodle
zcal
SimplyBook.me
Cal.com (formerly Calendso) is the open source Calendly alternative.

Reply Guy
Bazzly
ReplyAgent.ai
reddit-radar-marketing.com
Redreach.ai
AI agents read the Reddit threads where people ask for what you built, draft the reply in your voice, and track what turns into traffic and revenue.

Which is more popular?
Based on our record, Cal.com seems to be more popular. It has been mentioned 60 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | cal.com | replyt.co |
| Pricing | ||
| Company | — | Startup from México · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Cal.com yet.
Replyt is Reddit marketing run by AI agents. It finds the Reddit conversations where people are already asking for what you build, drafts a reply in your own voice, protects your account from bans, and tracks which replies turn into signups and revenue. What the agents do Finder scans Reddit for...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of Replyt yet.
Walkthroughs and reviews on video.
What can you do with Cal? | Cal.com Version 1.1 Launch | 10 new languages
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Cal.com and Replyt.
Replyt's answer:
Replyt is run by AI agents that handle the whole loop, not just one step. They find high-intent Reddit threads where people are already asking for what you build, draft a reply in your own voice, keep your Reddit account safe from bans and shadowbans, and track which replies actually turn into signups and revenue. Most tools stop at a keyword alert. Replyt closes the loop all the way to attribution.
Replyt's answer:
Keyword-alert tools like F5bot or Syften tell you a thread exists and stop there. AI reply tools draft a comment but can’t tell you if any of it worked. Replyt does all three: it finds the thread, drafts the reply in your voice, and measures which replies drove traffic and signups, with a Guardian agent protecting your account from bans along the way. Honest take: if you just want free keyword alerts, F5bot is enough. Replyt is for people who also want the reply written and the results tracked.
Replyt's answer:
Founders and small marketing teams at early-stage B2B SaaS who want customers from Reddit but don’t have time to watch dozens of subreddits, and who worry about getting banned for self-promotion. It’s built for founder-led and lean growth.
Replyt's answer:
Replyt started because its founder kept seeing people on Reddit asking for exactly the kind of product he was building, but replying by hand meant watching dozens of subreddits, risking an account ban, and never knowing which replies actually led anywhere. So he built AI agents to do that work and, just as importantly, to measure it. The account-safety agent came directly out of how easy it is to get banned on Reddit for promoting anything.
Replyt's answer:
Next.js (App Router) and React with TypeScript, Supabase (Postgres and auth), Stripe for billing, a Chrome extension for posting, and LLMs (Claude and Gemini) powering the agents. Deployed on Vercel.
Share your experience with using Cal.com and Replyt. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


The honest read: if you're leaving Acuity because your business outgrew simple scheduling — you need deposits, add-ons, multiple staff and locations, and ideally a booking site you own — Opencals is built for exactly...
I tried using https://cal.com for a bit but ended up just switching over to https://zcal.co and it has been great so far. All these other scheduling tools end up trying to do too much and always seem to end up a bit...
We have no reviews of Replyt yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Then for the component library, I was really into coss ui. I stumbled upon it randomly one day and loved it so much. My Nathan's AI project already had a UI heavily inspired by cal.com: send button, message suggestions... So when I saw... - Source: dev.to / 8 months ago
I keep coming back to what would have happened if I didn't have a strong technical understanding of how calendar technology works — the difference between local and cloud calendars, what an ICS feed is, why enterprise auth blocks... - Source: dev.to / 9 months ago
Plausible brought open source to web analytics. Cal.com did it for scheduling. Formbricks did it for surveys. PostHog did it for product analytics. Quackback does it for feedback collection. - Source: dev.to / 9 months ago
Tracking Replyt since Oct 2026.
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