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Slackwater VS CloudLinux

Compare Slackwater VS CloudLinux and see what are their differences

Slackwater

Slackwater shows the tide curve, the high and low times, slack water and the solunar bite windows for the spots you fish, surf and boat. Predictions run on the device from NOAA harmonic data, so it all works with no signal. Free for three spots.

Rating
0 reviews
Pricing
Freemium Free trial $24.99 / Annually (Premium. $3.99/mo, Lifetime $39.99. Free for 3 spots.)
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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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Bunny.net
BunnyCDN is a simple and powerful CDN, offering lightning fast performance for a fraction of the cost with free SSL, Brotli, HTTP/2 and 100% Pay As You Go pricing. 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.

Slackwater
CloudLinux
Website slackwatertides.com cloudlinux.com
Pricing
Freemium Free trial $24.99 / Annually (Premium. $3.99/mo, Lifetime $39.99. Free for 3 spots.) Official pricing
Open source
Platforms
iOS iPad Apple Watch
—
Company 2026 —
Listed in
Fishing Weather Boating Fishing App Outdoors iPhone Weather Apps +4
Hosting Web Hosting Cloud Hosting VPS Hosting +1

About Slackwater and CloudLinux

In their own words, as submitted to SaaSHub.

Slackwater
CloudLinux

Slackwater is a tide and fishing app for iPhone, iPad and Apple Watch. It shows the tide curve for a spot with the day's high and low times, when slack water arrives and which way the current turns next, and the solunar windows anglers plan around. Tide predictions are computed on the device from...

Read more about Slackwater

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

Slackwater 3 features
CloudLinux 5 features
  • Tide curve and times
    The day's highs and lows, slack water, and when the current turns
  • Solunar bite windows
    Major and minor windows, moon phase, and a rating for the day
  • Works offline
    Predictions computed on the device from NOAA harmonic data, no signal needed
  • 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.

Slackwater
CloudLinux

No analysis of Slackwater 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.

Slackwater 0 videos + Add
CloudLinux 3 videos + Add

No Slackwater 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
Slackwater
CloudLinux
100% 100%
Weather
0% 0%
0% 0%
Web Hosting
100% 100%
100% 100%
Fishing
0% 0%
0% 0%
VPS Hosting
100% 100%

Questions & Answers

As answered by people managing Slackwater and CloudLinux.

What makes your product unique?

Slackwater's answer

The tide math runs on the phone. Slackwater carries the NOAA harmonic constituents for the stations you save and computes the curve locally, so the tide times, the solunar windows and the alerts all still work in a marsh or a canyon with no bars. Several of the free tide apps are online only, which fails in exactly the places you need them. Slack water also gets treated as a first-class thing here: the app tells you when the current actually turns, not only when the height peaks, which is the moment most of this planning is really about.

Why should a person choose your product over its competitors?

Slackwater's answer

Scope and price for the person actually standing in the water. The large fishing platform runs about $75 a year and is mostly a social network with a catch log around it. Slackwater is a timing tool: $24.99 a year, $3.99 a month, or $39.99 once for Lifetime, and free for three spots with no ads and no account. It also covers the parts the simpler free tide apps leave out, including slack water and the current turn, a bite rating for the day, alerts at any tide height you choose, a session log that fills in the conditions for you, and an Apple Watch app with widgets and a Live Activity so the next tide is on your wrist and your lock screen.

How would you describe the primary audience of your product?

Slackwater's answer

Inshore and surf anglers, kayak and small boat people, surfers, clammers, and anyone whose plan for the next six hours depends on what the water is doing. They tend to fish the same handful of places over and over, which is why the free tier is three spots rather than a countdown to a paywall. Most of them are standing somewhere with one bar or none, so working offline is a requirement here rather than a bonus feature.

User comments

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