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Fizen VS CloudLinux

Compare Fizen VS CloudLinux and see what are their differences

Fizen

Self-custody USDT super app: travel eSIM for Japan, Korea, China, USA and 150+ countries, QR pay like a local in Vietnam and the Philippines, crypto Visa card, send money to 64 countries, gift cards and tokenized US stocks. Backed by Tether.

Rating
0 reviews
Pricing
Freemium Free trial
Promote on VibeVoted
Alternatives Is it good?
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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Alternatives Is it good?
Finsepa
Bring your portfolios together, understand what drives your returns, and track your progress toward your goals — with research tools to explore every investment further. sponsored
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.

Fizen
CloudLinux
Website fizen.io cloudlinux.com
Pricing
Freemium Free trial Official pricing
Open source
Platforms
iOS Android Web
—
Company Startup from Hong Kong · 10 - 19 employees · 2022 —
Listed in
Neobank Crypto Payments Crypto Card QR Code Payments Cryptocurrencies Cryptocurrency Wallets Payment Gateways Online Payments Crypto Fintech Payments Credit Card Payments +9
Hosting Web Hosting Cloud Hosting VPS Hosting +1

About Fizen and CloudLinux

In their own words, as submitted to SaaSHub.

Fizen
CloudLinux

Fizen is a self-custody USDT wallet and super app: the stablecoins you already hold work like money everywhere, without a bank in the middle. One USDT balance you control; you hold your own keys, nobody can freeze or switch it off. Travel eSIM (150+ countries) - eSIM for Japan, South Korea,...

Read more about Fizen

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

Fizen 8 features
CloudLinux 5 features
  • Travel eSIM
    eSIM for Japan, Korea, China, USA and 150+ countries from $4, unlimited plans, paid in USDT or card, free replacement for the whole trip
  • QR Pay
    Scan VietQR / Napas 247 / QR Ph codes and pay like a local in Vietnam and the Philippines with USDT, cashback on every payment
  • Crypto Visa card
    Visa card funded by USDT/USDC, MAS-licensed, Apple Pay and Google Pay, up to 100 cards per account
  • Send money
    USDT remittances and salary to 64 countries, payout to bank or Visa card, 30+ chains
  • Gift cards and top-ups
    5,000+ gift card brands in 178 countries plus airtime and mobile data top-up, paid in USDT
  • Tokenized US stocks
    100+ tokenized US stocks and ETFs (NVIDIA, Apple, Tesla, S&P 500) bought with USDT
  • Buy/Sell, Swap and Bridge
    P2P in 64 countries, Transak on-ramp, swap and cross-chain bridge on Solana, Ethereum, Base, BNB, including USDT to Tether Gold (XAUT)
  • Self-custody wallet
    One USDT balance, your own keys, nobody can freeze or switch it off. Backed by Tether
  • 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.

Fizen
CloudLinux

Overall verdict

  • I don't have verified, up-to-date information about Fizen (fizen.io) to make a reliable assessment of its quality, safety, or legitimacy. Before using this service, especially if it involves financial transactions, crypto, or personal data, you should conduct independent research.

Why this product is good

  • I lack specific, verified data about this particular product/service
  • Details about lesser-known platforms can change frequently (ownership, features, reputation)
  • Cannot confirm licensing, security practices, or user satisfaction without current verified sources
  • Risk of providing inaccurate information about a service I don't have reliable data on

Recommended for

  • Users who should independently verify through official reviews, regulatory checks, and user forums before proceeding
  • Anyone considering this service should check for company registration, user reviews on trusted platforms, and recent news coverage
  • Those who need financial or security-sensitive services should consult verified, independent sources rather than relying on AI assessment alone

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.

Fizen 1 video + Add
CloudLinux 3 videos + Add

Fizen Super App introduction: buy coffee with crypto, QR pay, card, eSIM

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
Fizen
CloudLinux
100% 100%
Online Payments
0% 0%
0% 0%
Cloud Hosting
100% 100%
100% 100%
Credit Card Payments
0% 0%
0% 0%
Web Hosting
100% 100%

Questions & Answers

As answered by people managing Fizen and CloudLinux.

What makes your product unique?

Fizen's answer

Fizen is the only self-custody app that turns one USDT balance into everything a traveler or remote worker needs: a travel eSIM for 150+ countries (Japan, Korea, China, USA, Europe) paid in USDT, QR payments like a local in Vietnam and the Philippines (VietQR, QR Ph), a MAS-licensed crypto Visa card, USDT remittances to 64 countries, gift cards in 178 countries, and tokenized US stocks. You hold your own keys the whole time. Fizen is backed by a strategic investment from Tether, the issuer of USDT, and its eSIM comes with a free replacement for the whole trip and a buy-back option for unused eSIMs.

Why should a person choose your product over its competitors?

Fizen's answer

Versus eSIM apps like Airalo or Holafly: Fizen lets you pay in USDT or card, gives a free 1:1 replacement for the whole trip if a Fizen-side eSIM fails, buys back unused eSIMs, and has a real support person you can actually reach. Versus crypto cards and exchanges like Crypto.com, Binance or Wirex: no staking, no custodial balance; your USDT stays in a wallet you control and you spend it by card or QR. Versus Wise, Revolut or Remitly: send USDT to 64 countries without a bank account on either end, with payout to bank or card. Versus MetaMask or Trust Wallet: a self-custody wallet that also lets you actually spend, with eSIM, QR pay, gift cards and stocks built in. And Fizen is backed by a strategic investment from Tether.

How would you describe the primary audience of your product?

Fizen's answer

Digital nomads and travelers heading to Japan, Korea, China, Thailand, Vietnam, the USA or Europe who want a travel eSIM without roaming fees and want to pay like a local by QR in Vietnam and the Philippines. Remote workers and freelancers paid in USDT on Upwork, Deel or Fiverr, especially in countries where PayPal and bank card rails are unreliable. Crypto holders who want to spend stablecoins on a Visa card or buy gift cards and tokenized US stocks without a P2P cash-out first. Media buyers and agencies who need up to 100 virtual Visa cards funded by USDT. Fizen is not available to US persons.

What's the story behind your product?

Fizen's answer

Fizen started in Southeast Asia, where millions of people get paid or hold savings in USDT but still had to run a P2P trade and a bank transfer just to buy dinner. The team built a self-custody wallet that could spend directly: first a crypto Visa card, then QR payments on the same VietQR and QR Ph rails locals use, then the everyday services travelers and remote workers actually need: travel eSIM, money transfer, gift cards, top-ups and tokenized US stocks, all from one USDT balance. Tether, the issuer of USDT, later made a strategic investment in Fizen to help bring stablecoin payments into everyday life across Asia and beyond.

Which are the primary technologies used for building your product?

Fizen's answer

Self-custody wallet infrastructure across 30+ blockchains, with USDT and USDC on Solana, Ethereum, Base and BNB Chain as the core balances. Payments run on the Visa network (MAS-licensed card programme in Singapore) with Apple Pay and Google Pay, and on local QR rails: VietQR and Napas 247 in Vietnam, QR Ph in the Philippines. On-ramp and off-ramp through P2P in 64 countries and Transak; card checkout via Stripe, Apple Pay and Google Pay for eSIM. Tokenized US stocks are Ondo tokenized assets on Ethereum. Native iOS and Android apps plus a web app at fizen.io.

User comments

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