Async
Replace "quick” work calls with super-powered voice messages
TheLibrarian.io
Your WhatsApp AI Assistant
Updated February 2026
| Async | TheLibrarian.io | |
|---|---|---|
| Rating | 4.6★ | 5.0★ |
| Reviews | 14 | 24 |
| Pros | 15 | 1 |
| FactScore™ | 53.7 | 69.9 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in Async — Pros
Voice messaging Asynchronous communication Time saving Personalized URLs Transcript feature Efficient team communication Improved productivity Time-stamped reactions Cross-platform availability Fast performance Integration with existing workflows Mobile app Project coordination Responsive development team Web appBoth tools — Pros
—Only in TheLibrarian.io — Pros
WhatsApp integrationOnly in Async — Cons
No registration for recipients Privacy concernsBoth tools — Cons
—Only in TheLibrarian.io — Cons
Reminders SchedulingDetails
| Async | TheLibrarian.io | |
|---|---|---|
| Categories | Productivity, Remote workforce tools, Meeting software | Productivity, AI Chatbots |
| Platforms | Web · iOS | Web |
| Became Popular | May 16, 2023 | April 17, 2025 |
| Website | async.com | thelibrarian.io |
Who Should Pick Which?
Choose Async if...
- Voice messaging
- Asynchronous communication
- Time saving
Choose TheLibrarian.io if...
- WhatsApp integration
With a FactScore™ of 53.7 vs 69.9, TheLibrarian.io leads in community reception. Async uniquely offers Voice messaging and Asynchronous communication, while TheLibrarian.io stands out for WhatsApp integration.
What Users Say
Async
Congrats @ilan and team!! Async is literally one of a kind — there's nothing else like it out there. Ilan and the team have been super responsive with early feedback over the past few months, and i...
10/10 domain name. My personal use case: contractors on different time zones. Signed up web and downloaded mobile app. Can't believe you have Silicon and Intel for Mac. Sync contacts Google and App...
Amazingly well designed product, a huge upgrade compared to Whatsapp voice messages. I immediately took a premium account and got my personal URL after trying :) Great job team Async!
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, Async or TheLibrarian.io?
Based on FactScore™, TheLibrarian.io leads with a score of 69.9 vs 53.7. TheLibrarian.io has a higher rating of 5.0★ compared to 4.6★.
What are the pros of Async compared to TheLibrarian.io?
Async uniquely offers: Voice messaging, Asynchronous communication, Time saving, Personalized URLs, Transcript feature.
What are the pros of TheLibrarian.io compared to Async?
TheLibrarian.io uniquely offers: WhatsApp integration.
Is Async better rated than TheLibrarian.io?
Async is rated 4.6★ from 14 reviews. TheLibrarian.io is rated 5.0★ from 24 reviews.
What is the FactScore™ of Async and TheLibrarian.io?
FactScore™ weighs rating and review volume together. Async scores 53.7 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