Software Alternatives & Startups

Telvio.app VS CloudLinux

Compare Telvio.app VS CloudLinux and see what are their differences

Telvio.app

Skype Out is gone, and messengers only call other app users. Telvio is an iPhone app for cheap international calls to ordinary landlines and mobiles over WiFi or data - no sign-up, no subscription, billed per second.

Rating
0 reviews
Pricing
Paid Free trial $1.99 / One-off (Starter minute pack, minutes never expire)
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.

Telvio.app
CloudLinux
Website telvio.app cloudlinux.com
Pricing
Paid Free trial $1.99 / One-off (Starter minute pack, minutes never expire) Official pricing
Open source
Platforms
iOS
—
Listed in

About Telvio.app and CloudLinux

In their own words, as submitted to SaaSHub.

Telvio.app
CloudLinux

Telvio is an iPhone app for cheap international calls to ordinary landlines and mobile numbers. Calls go out over WiFi or mobile data — so there is no roaming bill and no second SIM — but they arrive as normal phone calls. The person you dial installs nothing, creates no account and does not need...

Read more about Telvio.app

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

Telvio.app 5 features
CloudLinux 5 features
  • No Sign-Up Required
    No email, no password, no account - install and dial
  • International Calling
    Calls landlines and mobiles in 200+ countries; the person you call needs no app
  • Per-second billing
    Billed by the second, no connection fee, no minute rounding
  • No Subscription Required
    One-time minute packs at $1.99, $4.99 and $9.99; nothing auto-renews
  • Wi-Fi Calling
    Calls go over WiFi or mobile data - no SIM swap, no roaming charges
  • 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.

Telvio.app
CloudLinux

No analysis of Telvio.app yet.

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.

Telvio.app 0 videos + Add
CloudLinux 3 videos + Add

No Telvio.app 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
Telvio.app
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing Telvio.app and CloudLinux.

What makes your product unique?

Telvio.app's answer

Telvio dials ordinary phone numbers, not other app users. That one decision shapes the whole product: the person you call installs nothing, needs no account and needs no internet — their landline or mobile simply rings.

The second difference is that there is no sign-up at all. No email, no password, no SMS code, no verification screen. You install the app, you get one free minute, and you dial.

The third is the shape of the pricing. Minutes are bought once, in packs of $1.99, $4.99 or $9.99. Nothing auto-renews, minutes never expire, calls are billed per second, and connecting a call costs nothing.

Why should a person choose your product over its competitors?

Telvio.app's answer

Mostly because of what the price actually turns out to be.

Cheap-calling apps tend to advertise a low per-minute rate and recover the difference elsewhere: a connection fee charged on every call, rounding a 40-second call up to a full minute, credit that quietly expires after a few months, or a plan that renews whether you called anyone or not. Telvio has none of those. Billing is per second, connecting a call is free, minutes stay in your balance until you use them, and there is no subscription to cancel.

The second reason is how little you have to do before the first call. There is no registration step — no email, no password, no code to wait for — and the app comes with one free minute, so you can hear the line before you pay anything.

The third is who you can reach. Because Telvio calls the phone number itself rather than an app account, it works for the calls messengers cannot make: a parent's landline, a bank's support line, a clinic, a hotel front desk, a government office abroad.

Where Telvio is not the right choice: it is iPhone-only for now, it makes outgoing calls only, there is no inbound number, and it must not be used for emergency services.

How would you describe the primary audience of your product?

Telvio.app's answer

People who need to reach a specific phone number in another country, rather than a specific person on a messenger. In practice that splits into a few groups:

  • Migrants and expats whose family back home still answers a landline, or has a phone but no messaging app.
  • Travellers who need the hotel, the airline desk, the clinic or their bank while abroad, and do not want a roaming bill or a second SIM for three calls.
  • Students abroad calling home, and calling universities, embassies and consulates — all of which answer a phone number and none of which are in your contact list.
  • Anyone dealing with institutions in another country: a bank's support line, a government office, a doctor's reception, a landlord.

The common thread is that the other side is an ordinary phone, not an app. Telvio is deliberately narrow about this: it is an outgoing-call tool for iPhone, not a messenger, not a second phone number, and not a business phone system.

What's the story behind your product?

Telvio.app's answer

When Microsoft retired Skype in 2025, the part people missed was not video chat — every messenger does that. It was Skype Out: dialling a normal phone number in another country for a couple of cents a minute. Nothing mainstream replaced it. Messaging apps had solved calling people who already use the same messaging app, and left the rest alone.

Telvio was built for that gap by VAST FLOW, TOO in Kazakhstan — a country where calling abroad is not a niche use case but something a large share of families do every week.

Most of the product decisions came from looking at how apps in this category actually behave. They ask for an account before they show you anything, so Telvio asks for nothing. They charge a fee just to connect a call and round every call up to the next minute, so Telvio bills per second with no connection fee. They sell credit that expires, so Telvio's minutes do not. They push subscriptions, so Telvio sells one-time packs at $1.99, $4.99 and $9.99 and never renews anything on its own.

The app launched on iOS in 2026. It makes outgoing calls only, and it is not a replacement for emergency services.

User comments

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

Log in or Post with

Alternatives to Telvio.app and CloudLinux

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