CloudLinux VS ZapVox

Compare CloudLinux VS ZapVox and see what are their differences

Rating: 0 reviews
Pricing: Open source
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Rating: 0 reviews
Pricing: Freemium Free trial $5.5 / Monthly (Pro - billed in BRL at R$ 29.90/month)
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Base details

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

	CloudLinux	ZapVox
Website	cloudlinux.com	zapvoxia.com.br
Pricing	Open source	Freemium Free trial $5.5 / Monthly (Pro - billed in BRL at R$ 29.90/month) Official pricing
Platforms	—	Google Chrome Edge Web
Company	—	Startup from Brazil · 1 - 9 employees · 2026
Listed in	Hosting Web Hosting Cloud Hosting VPS Hosting +1	WhatsApp Voice Messaging AI Transcription Audio Transcription Transcription Chrome Extensions Browser Extensions AI Translation Communication Messaging Productivity AI +9

About CloudLinux and ZapVox

In their own words, as submitted to SaaSHub.

CloudLinux

ZapVox

No description of CloudLinux yet.

ZapVox is a Chrome and Edge extension that turns the WhatsApp Web voice messages you receive into text — transcribed, translated and summarized right inside the chat, with no need to forward the audio to another app. How it works A "Transcribe" button appears next to every voice message in...

Features and specs

What each product offers, as listed by its team.

CloudLinux 5 features

ZapVox 5 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.

One-click transcription
A Transcribe button on every WhatsApp Web voice message turns the audio into text right below the bubble, in the language it was recorded in.
Translation into 99+ languages
Translate the transcript of a voice message into any of 99+ languages without leaving the conversation.
Summaries of long audios
Turn a several-minute voice message into a short summary, so you get the point without listening to the whole thing.
Tone reading
Surfaces the sentiment behind the message - useful when the audio is long or the conversation is delicate.
Privacy by design
WhatsApp audio is decrypted inside your own browser and is never stored on our servers.

Analysis

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

CloudLinux

ZapVox

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

No analysis of ZapVox yet.

Videos

Walkthroughs and reviews on video.

CloudLinux 3 videos + Add

ZapVox 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

ZapVox

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Questions & Answers

As answered by people managing CloudLinux and ZapVox.

Which are the primary technologies used for building your product?

ZapVox's answer:

A Chrome Manifest V3 extension written in TypeScript, which also runs on Edge and other Chromium browsers
Supabase (Postgres plus Edge Functions) as the backend and orchestration layer
Speech-to-text and language models from Groq (Whisper), Google Gemini and OpenAI, with the option to bring your own key
Audio decryption done locally in the browser with HKDF-SHA256 and AES-256-CBC, the same scheme WhatsApp uses internally
Vercel for the website and Stripe for billing

What makes your product unique?

ZapVox's answer:

Most transcription tools ask you to leave the conversation: export the audio, upload it somewhere, wait, come back. ZapVox works where the message already is — a Transcribe button sits on every voice message inside WhatsApp Web, and the text appears right under the audio bubble.

It is also more than a transcript. The same click can translate the message into 99+ languages, summarize a long recording, or read the tone behind it — and it works in groups, not just one-to-one chats.

The audio is decrypted inside your own browser before anything leaves it, and it is never stored on our servers.

Why should a person choose your product over its competitors?

ZapVox's answer:

It stays inside WhatsApp Web. There is nothing to export and no second tab to open - the button sits on the message itself, and the text lands under the audio bubble.

It also does the whole job from that one click: the transcript, translation into 99+ languages, a summary when the recording runs long, and a read of the tone behind the message. Most alternatives are built for meetings and calls, not for the chat where the audio actually arrives.

The audio is decrypted inside your own browser and is never stored on our servers, which matters when the messages come from clients, patients or your own team.

And the price is friendly: a free tier with no credit card, and Pro from R$ 29.90/month (about US$ 5.50) with a 7-day trial.

How would you describe the primary audience of your product?

ZapVox's answer:

People whose work arrives as voice messages and who cannot always stop to listen to them.

In Brazil, where WhatsApp is the default channel for business, that means a lot of sales, support, real estate, legal and healthcare work, plus freelancers and small business owners who get dozens of audios a day and need the content, not the recording.

The second group is anyone working across languages, where translating the message matters as much as reading it, and anyone who is simply on the receiving end of long voice messages from family and friends.

What's the story behind your product?

ZapVox's answer:

ZapVox started from a very Brazilian problem. WhatsApp is where work happens here, and a large share of it arrives as voice messages - often several minutes long, often at the worst possible moment: in a meeting, in a noisy place, in the middle of something else.

The tools that existed all asked for the same detour: export the audio, upload it to another service, wait, come back with the text. That is fine once. It is unworkable when it happens twenty times a day.

So the goal was narrow from the start: put the transcript where the conversation already is, one click away, and then make it useful - translated, summarized, with the tone made explicit - without ever storing anyone's audio.

User comments

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