Software Alternatives & Startups
Register | Login

JustCall VS SecondFactor

Compare JustCall VS SecondFactor and see what are their differences

JustCall

The Cloud Phone System of choice for modern sales and support teams. We help end clueless conversations by adding context to every call.

Rating
0 reviews
Pricing
Paid $30 / Monthly
Alternatives Is it good?
SecondFactor

Stronger Authentication for a Safer World

Rating
0 reviews
Pricing
Paid Free trial
Alternatives Is it good?
Sales Blueprint Architect
Close More Business sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, JustCall seems to be more popular. It has been mentioned 4 times since March 2021.

social mentions
4 vs 0
Communication popularity
100% vs 0%
alternatives listed
240+ vs 7

Base details

Website, pricing, platforms and company facts side by side.

JustCall
SecondFactor
Website justcall.io secondfactor.ai
Pricing
Paid $30 / Monthly Official pricing
Paid Free trial Official pricing
Platforms
Web Browser Windows Mac OSX Linux Android iOS +4
—
Company 2018 Startup from Singapore · 10 - 19 employees · 2020
Listed in
Phone System Call Center Software Call Center Solution Sales Automation Call Center Services Video Conferencing Bulk Sms Auto Dialer Cloud Hosting +6
OTP Two Factor Authentication APIs SMS 2fa Authentication Multi-factor Authentication AI +5

About JustCall and SecondFactor

In their own words, as submitted to SaaSHub.

JustCall
SecondFactor

The Cloud Phone System of choice for modern sales and support teams. End clueless conversations by adding context to every call. Call software, virtual numbers, SMS campaigns, native CRM integrations, and lots more at just $25 per user. 100+ integrations with CRM & Business tools Click to...

Read more about JustCall

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...

Read more about SecondFactor

Features and specs

What each product offers, as listed by its team.

JustCall 5 features
SecondFactor 9 features
  • Ease of Use
    JustCall offers an intuitive interface that's simple to navigate, making it easy for teams to get up and running quickly.
  • Integration Capabilities
    JustCall integrates seamlessly with numerous CRMs and business tools, such as Salesforce, HubSpot, and Slack, enhancing workflow efficiency.
  • Global Calling
    The platform supports international calling, which is beneficial for businesses with global customers or remote teams.
  • Automation Features
    JustCall automates various tasks like call scheduling and follow-ups, saving time and reducing manual effort.
  • Analytics and Reporting
    The service provides comprehensive analytics and reporting features, enabling businesses to track performance and make data-driven decisions.

Possible disadvantages

  • Price
    Some users find the pricing structure to be on the higher side, especially for small businesses or startups.
  • Call Quality
    There have been occasional reports of poor call quality or dropped calls, which can impact customer communication.
  • Limited Advanced Features
    While JustCall covers essential features, it may lack some of the nuanced advanced functionalities that are available in other, more comprehensive platforms.
  • Customer Support
    Some users have experienced delays or less satisfactory responses from customer support, which can be problematic in urgent situations.
  • Learning Curve for Advanced Features
    While basic functions are easy to use, mastering some of the more advanced features may require additional training or time.
  • Channels
    SMS, WhatsApp, RCS, and Viber
  • Automatic routing
    Sends each OTP over the lowest-cost eligible channel
  • Automatic fallback
    Moves to the next eligible channel if delivery isn't confirmed within 8 seconds
  • Delivery logs
    Shows the channel, status, and cost of every OTP
  • Authentication templates
    Managed from the dashboard
  • SDKs
    Kotlin, Swift, Dart, TypeScript, and server-side
  • LLM-friendly API
    The API and SDKs work with AI agents like Claude, Copilot, and Cursor
  • Country Coverage
    130+ countries, including the USA, UK, Germany, France, India, Mexico, Peru, and Brazil
  • OTP Playground
    Test real OTP delivery in the Playground

Analysis

An editorial look at what each product does well and who it suits.

JustCall
SecondFactor

Overall verdict

  • Overall, JustCall is considered a strong choice for businesses looking for a comprehensive and flexible communication tool. However, as with any service, it's important to evaluate how its features align with your specific business needs.

Why this product is good

  • JustCall is a cloud-based phone system designed for sales and support teams. It offers a suite of features including call forwarding, SMS capabilities, integrations with various CRM tools, and call monitoring. Users often praise its ease of use, ability to integrate with existing systems, and customer support. It's particularly beneficial for teams that need a reliable VoIP service with global reach.

Recommended for

    JustCall is ideal for small to medium-sized businesses that require a cost-effective, easy-to-implement call system. It's also suitable for remote teams and businesses with a high volume of outbound calls or those that rely heavily on CRM integrations.

No analysis of SecondFactor yet.

Videos

Walkthroughs and reviews on video.

JustCall 3 videos + Add
SecondFactor 0 videos + Add

Customer Talks

More videos

  • - Customer Talks
  • - How to Set-up IVR?

No SecondFactor videos yet. You could help us improve this page by suggesting one.

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
JustCall
SecondFactor
100% 100%
Communication
0% 0%
0% 0%
Two Factor Authentication
100% 100%
100% 100%
Call Center Software
0% 0%
0% 0%
APIs
100% 100%

Questions & Answers

As answered by people managing JustCall and SecondFactor.

Who are some of the biggest customers of your product?

SecondFactor's answer:

  • Rara Global Ventures
  • Lambda Payments
  • Janaki Technology
  • Eventra

What makes your product unique?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

User comments

Share your experience with using JustCall and SecondFactor. For example, how are they different and which one is better?

Log in or Post with

Reviews and articles

External articles and on-site reviews we used to compare the two products.

JustCall no reviews yet
SecondFactor no reviews yet

We have no reviews of SecondFactor yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

JustCall 4 mentions
SecondFactor 0 mentions
  • Newbie here. How would you target other businesses for establishing partnerships in the efficient way?
    If you're going to cold call, utilize software that'll show call logs etc. In your CRM (justcall.io is one example, but there's tons of options for this). Source: almost 4 years ago
  • Remote workers and phone system
    Another I've just heard about from colleagues is JustCall, as it integrates with HubSpot...which we just started using. But I can't speak to service. (Broadvoice only integrated with Salesforce which is well beyond what we can use) Good... Source: almost 4 years ago
  • For the love of god, is there a way to mass upload calls to Zoho? Some work around to expedite this process?
    We use Just call (https://justcall.io/) - it's integrated and relatively cheap. Call straight out of Zoho. No relationship - just a customer. Source: about 4 years ago

View more

Tracking SecondFactor since Oct 2026.

Alternatives to JustCall and SecondFactor

When comparing JustCall and SecondFactor, you can also consider the following products.

Loading...