
Dialpad
RingCentral
CloudTalk
JustCall
Five9
Nextiva
CallHippo
Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs

Twilio
Plivo
Vonage
Infobip
MessageBird
Telnyx
MSG91
Stronger Authentication for a Safer World

Which is more popular?
Based on our record, Aircall seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | aircall.io | secondfactor.ai |
| Pricing | ||
| Company | Startup from France · 250 - 499 employees · 2014 | Startup from Singapore · 10 - 19 employees · 2020 |
| Listed in |
In their own words, as submitted to SaaSHub.


Place and take calls anywhere, instantly obtain phone numbers in over 100+ countries, and handle calls on the go with Aircall's desktop and mobile apps. Automatically and efficiently route calls according to IVR selection, agent skills, time zone, and more, including an intuitive dashboard. Track...
SecondFactor is an OTP API for vibe-coders and product teams that delivers and verifies OTPs over SMS, WhatsApp, RCS, and Viber through a single integration. It's built for two-factor authentication (2FA), and OTP verification. It fits fintech, tech-enabled marketplaces, and international...
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
Aircall - 2min Product Summary - Features, Mobility, Security, Integrations & Pricing
More videos
No SecondFactor videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Aircall and SecondFactor.
SecondFactor's answer:
SecondFactor's answer:
The Intelligence Engine identifies the destination country and operator, checks which channels are available, and uses automatic routing to send the OTP over the lowest-cost eligible channel. If the delivery isn't confirmed within 8 seconds, automatic fallback moves to the next eligible channel.
SecondFactor's answer:
Your backend doesn't generate, store, or check the code itself. Instead, SecondFactor generates the code, picks the optimal channel, delivers the OTP and verifies it. If you are moving from another OTP provider, you keep a simple send-and-verify integration instead of rebuilding your verification workflow.
SecondFactor's answer:
SecondFactor is an OTP API for vibe-coders and product teams. It fits fintech, tech-enabled marketplaces, and international platforms that send OTPs to users in more than one country.
Share your experience with using Aircall and SecondFactor. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Aircall provides a cloud-based business phone and contact center platform focused on sales and support teams. Deployment is fast and fully cloud-managed, but the ecosystem is primarily centered around voice operations...
HubSpot's call center software has advanced automation tools and insightful reporting that helps your team consistently improve customer service. Service Hub includes a shared email inbox, live chat software, and...
Aircall offers an integrated, easy-to-use, cloud-based phone solution. What that means is that whenever you’re on a call, Aircall helps you keep track of who you’re talking to, customer information, order info, and...
We have no reviews of SecondFactor yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Hey! Here are a few Dialers off the top of my head: Toky Aircall CloudTalk Convolo I'll be adding more dialers on SalePier (click "Outbound Prospecting", and then "Dialers/SMS"), so come and check back on a regular basis. I'll shoot... Source: over 3 years ago
We use Aircall (https://aircall.io) and have it integrated to our shared/collaboration inbox service (https://front.com). The set-up has been solid for us. Source: about 4 years ago
Aircall, that you can use to automate your phone calls process. Source: about 5 years ago
Tracking SecondFactor since Oct 2026.
When comparing Aircall and SecondFactor, you can also consider the following products.

Switch is a cloud-based phone system built for Google Apps users.
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Brings voice and messaging to your web and mobile applications.
Compare Twilio to Aircall or SecondFactor:

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Compare RingCentral to Aircall or SecondFactor:



Vonage is a cloud-based all-in-one VoIP software solution designed for multiple industries such as accounting, healthcare, finance and marketing etc.
Compare Vonage to Aircall or SecondFactor: