Software Alternatives & Startups

thecalcs VS CloudLinux

Compare thecalcs VS CloudLinux and see what are their differences

thecalcs

Professional calculators for home design, finance, education, and business. Fast, accurate, and completely free.

Rating
0 reviews
Pricing
Free Free trial $500 / One-off
CloudLinux

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

Rating
0 reviews
Pricing
Open source
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Base details

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

thecalcs
CloudLinux
Website thecalcs.com cloudlinux.com
Pricing
Free Free trial $500 / One-off Official pricing
Open source
Listed in

Features and specs

What each product offers, as listed by its team.

thecalcs 4 features
CloudLinux 5 features
  • User-Friendly Interface
    TheCalcs offers a clean and intuitive interface that is easy to navigate, making it accessible for users of all experience levels.
  • Wide Range of Calculators
    The platform provides a diverse collection of calculators that cater to various fields, including finance, health, and engineering, offering versatility for different user needs.
  • Accuracy
    TheCalcs ensures that its calculators provide accurate results, which is essential for users relying on precise data for decision-making.
  • Free Access
    Users can access and use most of the calculators on TheCalcs for free, providing great value without the need for subscription fees.

Possible disadvantages

  • Limited Advanced Features
    While TheCalcs offers many basic calculators, it may lack advanced features required by professionals in specific technical fields.
  • Advertisements
    The website contains advertisements, which can be distracting for some users and may affect the user experience.
  • Internet Dependency
    Users need an internet connection to access TheCalcs, which could be a limitation for those in areas with poor connectivity.
  • 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.

thecalcs
CloudLinux

Overall verdict

  • TheCalcs (thecalcs.com) is a solid free online resource offering a wide variety of calculators for everyday and specialized needs, making quick computations accessible without any downloads or fees.

Why this product is good

  • Provides a broad collection of calculators covering finance, health, math, and other everyday categories
  • Free to use with no registration or software installation required
  • Simple, user-friendly interface that delivers instant results
  • Accessible from any device with a web browser, making it convenient on the go

Recommended for

  • Students needing quick math or conversion tools
  • Individuals managing personal finances, loans, or budgets
  • People tracking health metrics like BMI or calorie needs
  • Professionals wanting fast, no-cost calculations without dedicated software

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.

thecalcs 0 videos + Add
CloudLinux 3 videos + Add

No thecalcs 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, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
thecalcs
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing thecalcs and CloudLinux.

Why should a person choose your product over its competitors?

thecalcs's answer

Because thecalcs combines the precision of technical calculators with the usability of modern SaaS design. It’s not just a library of calculators — it’s a solution hub:

Every calculator is fast, mobile-optimized, and completely free.

Users get instant, interactive results with professional explanations.

Businesses can request custom calculators built to match their brand and needs. It’s the most practical, transparent, and scalable calculator platform available online.

What makes your product unique?

thecalcs's answer

Thecalcs is the world’s first large-scale platform dedicated entirely to professional-grade, free calculators across every industry — from finance and real estate to engineering, education, and marketing. Each calculator is built with verified formulas, instant results, and clean, ad-free design, making it both developer-friendly and business-ready. Unlike generic calculator sites, thecalcs focuses on accuracy, speed, and conversion — helping users solve problems while inspiring businesses to create their own custom tools.

How would you describe the primary audience of your product?

thecalcs's answer

Professionals, entrepreneurs, and students who need fast, accurate tools for daily work.

Companies and agencies looking to add interactive calculators to their websites to improve engagement, lead generation, and conversions.

Educators and content creators who embed or reference calculators for learning and data-driven explanations.

What's the story behind your product?

thecalcs's answer

Thecalcs began as a personal experiment by Souhayb Kamal, a full-stack developer, to make technical calculators more usable and beautiful. After realizing that most online calculators were outdated, inaccurate, or overloaded with ads, he started building modern, responsive, and precise tools powered by clean code and real-world formulas. What started with a few math and finance tools grew into a full SaaS-style calculator library — now trusted by thousands of users and used by companies worldwide to develop custom tools for their own websites.

Which are the primary technologies used for building your product?

thecalcs's answer

Frontend: Next.js, React, Tailwind CSS, TypeScript

Data & SEO: JSON Schema for formulas, custom metadata indexing

Infrastructure: Vercel for deployment and performance

Analytics & Automation: Google Search Console, IndexNow, Ahrefs integration

Who are some of the biggest customers of your product?

thecalcs's answer

Financial planning agencies – ROI and investment calculators

Marketing consultancies – Campaign ROI tools

Construction and home improvement businesses – Cost estimator calculators

Educational and training platforms – Math and science calculation tools

User comments

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Alternatives to thecalcs and CloudLinux

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