Software Alternatives & Startups

StartACall VS CloudLinux

Compare StartACall VS CloudLinux and see what are their differences

StartACall

Make cheap international calls directly from your browser. No app download required. Pay-as-you-go VoIP calling to 195+ countries starting at $0.02/min.

Rating
0 reviews
Pricing
Free trial $3 / Usage
CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

Rating
0 reviews
Pricing
Open source
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.

Base details

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

StartACall
CloudLinux
Website startacall.com cloudlinux.com
Pricing
Free trial $3 / Usage
Open source
Company Startup from Canada ยท 1 - 9 employees ยท 2025 โ€”
Listed in

About StartACall and CloudLinux

In their own words, as submitted to SaaSHub.

StartACall
CloudLinux

Make international calls from your browser in 3 clicks. No app downloads required. StartACall is the simplest way to call 195+ countries. Just open your browser, enter a number, and dial. Uses WebRTC technology for HD voice quality. ๐Ÿ’ฐ Pay as you go only โ€ข No monthly fees ๐ŸŒ Call any mobile or...

Read more about StartACall

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

StartACall 6 features
CloudLinux 5 features
  • Browser-Based Calling
    Make international calls directly from your web browser without downloading any apps or software.
  • 193+ Countries Coverage
    Call mobile phones and landlines in over 195 countries worldwide with consistent quality.
  • WebRTC Technology
    Crystal-clear HD voice quality using modern WebRTC protocol - the same tech powering Google Meet and Zoom.
  • No App Required
    Start calling instantly without downloads, installations, or app store approvals.
  • Call Mobile & Landlines
    Connect to any phone number worldwide - mobile phones, landlines, and toll-free numbers.
  • Instant Connection
    Calls connect in under 2 seconds with minimal latency for real-time conversations.
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

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

StartACall
CloudLinux

Overall verdict

  • StartACall appears to be a solid calling and communication solution for businesses looking to streamline their phone-based customer interactions, though prospective users should verify current features and pricing directly.

Why this product is good

  • Offers streamlined call management tools that can help businesses handle customer communications efficiently
  • Typically provides click-to-call functionality that improves lead conversion and customer engagement
  • Cloud-based setup often means minimal hardware requirements and easy scalability
  • May include useful features like call tracking and analytics for measuring performance

Recommended for

  • Small to medium-sized businesses seeking to improve customer phone communication
  • Sales teams that rely on quick outbound calling and lead follow-up
  • Websites wanting to add click-to-call features to boost conversions
  • Customer support teams looking for cloud-based call management

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

StartACall 0 videos + Add
CloudLinux 3 videos + Add

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

When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

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

Score bands 0โ€“20 21โ€“40 41โ€“50 51โ€“60 61โ€“100
StartACall
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing StartACall and CloudLinux.

What makes your product unique?

StartACall's answer

No app downloads. Ever. Just open your browser and call 195+ countries instantly. While competitors force you to download apps, create accounts, and deal with bloat, we're just... there. In your browser. Ready to call.

Why should a person choose your product over its competitors?

StartACall's answer

Three reasons: (1) Works instantly - no 200MB downloads like Skype, (2) Pay-as-you-go from $0.02/min - no monthly fees like traditional services, (3) Credits never expire - unlike calling cards or Viber Out. Plus, we're actually simple to use.

How would you describe the primary audience of your product?

StartACall's answer

Three groups: Digital nomads & remote workers calling internationally, expats & immigrants staying connected with family back home, and small businesses with distributed teams who need affordable international calling without complex phone systems.

What's the story behind your product?

StartACall's answer

I'm a solo maker learning to build products. Got frustrated watching family struggle with calling cards and bloated apps just to make simple international calls. Spent 3 months building something that just... works. No fluff, no complexity. This is my attempt at building something people actually need.

Which are the primary technologies used for building your product?

StartACall's answer

Frontend: Next.js 14 with React and TypeScript Calling: WebRTC for browser audio, Twilio for PSTN connectivity Payments: Stripe Hosting: Vercel Real-time: WebSockets for live updates Modern, reliable, and fast.

Who are some of the biggest customers of your product?

StartACall's answer

We just launched, so we're early! Currently serving individual users and small remote teams. Our goal is to help anyone who needs to call internationally - from freelancers to families to growing startups. Building customer base one happy caller at a time.

User comments

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

Log in or Post with

Alternatives to StartACall and CloudLinux

When comparing StartACall and CloudLinux, you can also consider the following products.