Mayday
Your AI Scheduling Co-pilot
TheLibrarian.io
Your WhatsApp AI Assistant
Updated February 2026
| Mayday | TheLibrarian.io | |
|---|---|---|
| Rating | 4.6★ | 5.0★ |
| Reviews | 11 | 24 |
| Pros | 15 | 1 |
| FactScore™ | 50.1 | 69.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Mayday — Pros
Multiple calendar support Scheduling links Automates scheduling Calendar shield FYI events Optimizes schedule Protects time Smart tags Apple Calendar integration Design and theme Menu bar quick access Native app Outlook integration Swift UI Sync across calendarsBoth tools — Pros
—Only in TheLibrarian.io — Pros
WhatsApp integrationOnly in Mayday — Cons
Bugs Acquisition concerns Apple Calendar integration Confusing setup Lack of search feature Outlook integration Slow performanceBoth tools — Cons
—Only in TheLibrarian.io — Cons
Reminders SchedulingDetails
| Mayday | TheLibrarian.io | |
|---|---|---|
| Categories | Productivity, Calendar apps, Scheduling software | Productivity, AI Chatbots |
| Platforms | Web · iOS | Web |
| Became Popular | May 20, 2021 | April 17, 2025 |
| Website | mayday.am | thelibrarian.io |
Who Should Pick Which?
Choose Mayday if...
- Multiple calendar support
- Scheduling links
- Automates scheduling
Choose TheLibrarian.io if...
- WhatsApp integration
With a FactScore™ of 50.1 vs 69.9, TheLibrarian.io leads in community reception. Mayday uniquely offers Multiple calendar support and Scheduling links, while TheLibrarian.io stands out for WhatsApp integration.
What Users Say
Mayday
I was loving it, but just got a message from the team saying they got acquired! I hope they got good terms, but it sucks that I need to switch. I'm looking for a replacement native app (not web-bas...
makes scheduling much easier
Do you ever imagine what you could do by reclaiming 5-10 hours of high-quality, productive time every week? Or how it would feel if you could save yourself the time and pain of back and forth sched...
TheLibrarian.io
I've been using The Librarian daily, and it's quickly become an essential part of my workflow. The more I use it, the smarter it gets - learning my habits, anticipating my needs, and asking exactly...
Polished "AI on WhatsApp" — searches the web, summarizes, answers. Easy to use, no setup.
As a content creator and educator, I juggle classes, content production, and client meetings daily. TheLibrarian.io has been a total game-changer. I use it to auto-schedule my calendar, send well-s...
Related Comparisons
Frequently Asked Questions
Which is better, Mayday or TheLibrarian.io?
Based on FactScore™, TheLibrarian.io leads with a score of 69.9 vs 50.1. TheLibrarian.io has a higher rating of 5.0★ compared to 4.6★.
What are the pros of Mayday compared to TheLibrarian.io?
Mayday uniquely offers: Multiple calendar support, Scheduling links, Automates scheduling, Calendar shield, FYI events.
What are the pros of TheLibrarian.io compared to Mayday?
TheLibrarian.io uniquely offers: WhatsApp integration.
Is Mayday better rated than TheLibrarian.io?
Mayday is rated 4.6★ from 11 reviews. TheLibrarian.io is rated 5.0★ from 24 reviews.
What is the FactScore™ of Mayday and TheLibrarian.io?
FactScore™ weighs rating and review volume together. Mayday scores 50.1 and TheLibrarian.io scores 69.9.
Don't Get Fooled by Fake Social Media Videos
The world's first fact checker for social media. Paste any link and get an instant credibility score with sources.
Try FactCheckTool Free