CloudLinux VS Calcam

Compare CloudLinux VS Calcam and see what are their differences

Rating: 0 reviews
Pricing: Open source
: Promote on VibeVoted

Rating: 0 reviews
Pricing: Free Free trial
: Promote on VibeVoted

Calcumber

Calculate in a notebook and share — from everyday math to engineering. sponsored

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Base details

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

	CloudLinux	Calcam
Website	cloudlinux.com	app.getcalcam.com
Pricing	Open source	Free Free trial Official pricing
Company	—	Startup from the United Kingdom
Listed in	Hosting Web Hosting Cloud Hosting VPS Hosting +1	Calculators Online Calculators Finance Calculators Web App +1

About CloudLinux and Calcam

In their own words, as submitted to SaaSHub.

CloudLinux

Calcam

No description of CloudLinux yet.

Calcam helps teams publish interactive ROI and pricing calculators on their pricing pages. Visitors enter their own numbers, see the potential value, and continue to the team’s signup or sales CTA with that context. It is designed to help teams get a useful calculator live quickly without...

Features and specs

What each product offers, as listed by its team.

CloudLinux 5 features

Calcam 3 features

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.

Embeddable ROI calculators
Publish a working ROI calculator on a pricing page.
Custom calculator inputs
Let visitors enter their own business numbers and model potential savings.
Calculation-to-CTA flow
Connect the calculation result to the next signup or sales CTA.

Analysis

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

CloudLinux

Calcam

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

Overall verdict

Calcam is a solid choice for casual users seeking a fast, low-friction way to track calories and macros using photo-based AI recognition, though it may lack the precision and depth of long-established fitness ecosystems.

Why this product is good

Uses AI-powered photo recognition to estimate calories and macros quickly without manual food logging
Simple, modern interface that reduces the friction typically associated with calorie tracking
Speeds up the logging process, which can improve consistency and long-term adherence
Useful for identifying food composition on the go, especially for meals eaten outside the home
Often integrates basic progress tracking to help users see calorie/macro trends over time

Recommended for

Beginners who find traditional calorie-tracking apps tedious or complicated
People who eat out frequently and want a fast way to estimate meal calories
Users who prioritize convenience and speed over highly precise nutrition data
Casual dieters or fitness enthusiasts tracking general trends rather than exact macros
Individuals who respond well to visual/photo-based logging methods

Videos

Walkthroughs and reviews on video.

CloudLinux 3 videos + Add

Calcam 0 videos + Add

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

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

CloudLinux

Calcam

100% 100%

Cloud Hosting

0% 0%

Web App

100% 100%

Web Hosting

0% 0%

Online Calculators

100% 100%

Questions & Answers

As answered by people managing CloudLinux and Calcam.

What makes your product unique?

Calcam's answer:

Calcam turns a pricing-page visit into an interactive buying conversation. Teams can publish a working ROI or pricing calculator that lets visitors enter their own numbers, see the potential value, and continue to the team’s CTA with that context.

Why should a person choose your product over its competitors?

Calcam's answer:

Choose Calcam when you want a focused, embeddable ROI or pricing calculator for a pricing page without building the calculator flow from scratch. It is designed to get a useful calculator live quickly and keep the visitor’s calculation connected to the next sales or signup step.

How would you describe the primary audience of your product?

Calcam's answer:

B2B SaaS and other teams with value-based or usage-based pricing, especially founders, marketers, and sales teams who want buyers to model savings or ROI before they talk to the company.

What's the story behind your product?

Calcam's answer:

Calcam was built around a simple problem: pricing pages often explain value but do not let a buyer test the math with their own numbers. The product gives teams a practical way to publish that calculation and turn the result into a more informed next step.

Which are the primary technologies used for building your product?

Calcam's answer:

Calcam is a Next.js 15 web application with a React and shadcn/ui interface, React Query for client-side data fetching, Zod-backed forms, and a self-hosted Postgres database accessed through Drizzle ORM and Better Auth.

User comments

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