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Keelzo VS Opalstack

Compare Keelzo VS Opalstack and see what are their differences

Keelzo

Keelzo finds candidates already hidden in your ATS. The moment you post a job, our AI surfaces past applicants, rejected candidates, and career page visitors who fit — scored, ranked, and explained in 22 seconds. Free 14-day pilot.

Keelzo AI Resume Scoring
Rating
0 reviews
Pricing
Free trial $25 / Monthly
Alternatives Is it good?
Opalstack

Managed Hosting for developers, entrepreneurs, and businesses like yours

Opalstack Landing page
Rating
0 reviews
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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.

Keelzo
Opalstack
Website keelzo.com opalstack.com
Pricing
Free trial $25 / Monthly Official pricing
Official pricing
Company Startup from India · 1 - 9 employees · 2026 —
Listed in
Applicant Tracking System (ATS) ATS And Recruiting Recruitment Automation HR Tools Ai Recruitment +2
Hosting Web Hosting Managed Hosting Cloud Hosting +1

About Keelzo and Opalstack

In their own words, as submitted to SaaSHub.

Keelzo
Opalstack

Find candidates already hidden in your ATS Most recruiters waste weeks searching for candidates who already applied to them — months ago, for a different role. Keelzo fixes that. The moment you post a job, our AI searches your existing pipeline first — past applicants, rejected candidates, talent...

Read more about Keelzo

No description of Opalstack yet.

Features and specs

What each product offers, as listed by its team.

Keelzo 9 features
Opalstack 5 features
  • AI Candidate Rediscovery
    Surfaces past applicants & talent pool matches automatically when a job is posted
  • AI Resume Scoring with 6-dimension analysis
    6-dimension scoring with explainable logic (skills, experience, seniority, industry, education, stability)
  • AI Assistant for recruiters
    Context-aware assistant that knows the candidate, role, and company
  • AI Assistant for candidates
    Answers candidate questions using your company knowledge base
  • Auditable Kanban hiring pipeline
    Kanban board with full timeline of every action and automatic candidate notifications
  • Bulk Resume Upload
    Score and rank up all your resumes at once against any job
  • Job-Specific Pre-Assessment
    Custom assessments tied to each role
  • Practical Assessment Module
    Skill-based evaluation with real-world tasks
  • Talent Pool Management
    Build and maintain a database of future candidates
  • Developer-Friendly Hosting
    Opalstack is designed with developers in mind, offering SSH access, Git integration, and support for multiple programming languages and frameworks including Python, Node.js, Ruby, and PHP, giving developers granular control over their hosting environment.
  • Affordable Pricing
    Opalstack offers competitive pricing for shared and managed hosting plans, making it an accessible option for small businesses, freelancers, and individual developers who need robust features without enterprise-level costs.
  • Modern Control Panel
    Opalstack provides a clean, modern, and intuitive web-based dashboard for managing sites, applications, databases, and email accounts, which is a significant improvement over older-style hosting control panels like cPanel.
  • Strong Support for Multiple Applications
    The platform supports a wide variety of application types including WordPress, Django, Flask, Express, static sites, and more, allowing users to host diverse projects on a single account with easy deployment.
  • Reliable Infrastructure and Support
    Opalstack is built by former WebFaction team members, bringing experienced hosting expertise. They offer responsive customer support and a reputation for stable, well-managed server infrastructure with good uptime.

Possible disadvantages

  • Smaller Community and Ecosystem
    Compared to major hosting providers like DigitalOcean, AWS, or even shared hosts like SiteGround, Opalstack has a smaller user base, which means fewer community tutorials, third-party guides, and forum discussions available for troubleshooting.
  • Limited Scalability Options
    Opalstack is primarily a shared hosting provider, which means it may not be the best choice for high-traffic applications or projects that require rapid, on-demand scaling of resources like CPU, RAM, or storage.
  • Not Ideal for Beginners
    While developer-friendly, Opalstack's approach can be intimidating for non-technical users. Setting up applications often requires familiarity with the command line and server configuration, which may not suit those looking for simple one-click solutions.
  • Limited Data Center Locations
    Opalstack offers a relatively small number of data center locations compared to major cloud providers, which may result in higher latency for users targeting audiences in regions not well-served by the available server locations.
  • Fewer Managed Services and Add-ons
    Unlike larger hosting platforms, Opalstack lacks a wide range of managed add-on services such as built-in CDN integration, managed backups with granular restore options, or one-click SSL management that more mainstream providers offer out of the box.

Analysis

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

Keelzo
Opalstack

Overall verdict

  • I don't have verified, up-to-date information about Keelzo (keelzo.com) in my training data, so I can't confidently confirm its legitimacy, quality, or reputation. Before using or purchasing from this site, you should independently verify it.

Why this product is good

  • I lack specific data about this company's products, services, reviews, or business practices
  • I cannot confirm whether this is a legitimate, established business or a newer/lesser-known site
  • Without verified information, providing a positive or negative assessment could be misleading
  • Online business legitimacy can change over time, so real-time verification is important

Recommended for

  • Anyone considering this site should first check independent review platforms like Trustpilot, BBB, or Reddit
  • Look for verifiable contact information, business registration, and customer reviews
  • Check if the site has secure payment processing (https, recognized payment gateways)
  • Search for the company name plus 'reviews' or 'scam' to see what other users report
  • Consider using a small test order first if uncertain about a new online retailer

Overall verdict

  • Opalstack is a solid choice for developers and tech-savvy users seeking an affordable, flexible control panel hosting solution with good performance and transparent pricing, though it may require more technical know-how than mainstream cPanel hosts.

Why this product is good

  • Uses a custom lightweight control panel that's fast and efficient compared to resource-heavy alternatives like cPanel
  • Offers straightforward, transparent pricing without hidden fees or aggressive upselling
  • Provides SSD storage and solid server performance for the price point
  • Supports multiple app types including Python, Node.js, and various frameworks beyond typical PHP hosting
  • Founded by the original creators of WebFaction, bringing significant hosting industry experience
  • Good for running multiple websites/apps under one account with granular resource control
  • Responsive customer support with a knowledgeable team
  • No long-term contracts required, allowing flexibility

Recommended for

  • Developers who need support for Python, Node.js, or other non-PHP applications
  • Users comfortable with a more technical, non-cPanel control panel interface
  • Small businesses or freelancers hosting multiple websites who want granular control
  • Former WebFaction users looking for a similar service after its shutdown
  • Budget-conscious users who want VPS-like flexibility without full server management
  • Users who prioritize transparent pricing over bundled marketing extras

Videos

Walkthroughs and reviews on video.

Keelzo 1 video + Add
Opalstack 0 videos + Add

Candidate rediscovery

No Opalstack videos yet. You could help us improve this page by suggesting one.

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
Keelzo
Opalstack
100% 100%
HR Tools
0% 0%
0% 0%
Cloud Hosting
100% 100%
100% 100%
ATS And Recruiting
0% 0%
0% 0%
Web Hosting
100% 100%

Questions & Answers

As answered by people managing Keelzo and Opalstack.

What makes your product unique?

Keelzo's answer

Keelzo searches your existing candidate pipeline first — past applicants, rejected candidates, talent pool members, and career page visitors — before sending you to job boards. Most ATS tools treat past candidates as dead data. Keelzo turns them back into live matches the moment a new role is posted, with explainable AI scoring across 6 dimensions. The result: 22-second rediscovery instead of 30-minute manual searches, and defensible shortlists you can hand to a hiring manager without flinching.

Why should a person choose your product over its competitors?

Keelzo's answer

Traditional ATS platforms like Zoho Recruit, Greenhouse, and Lever are built around storing candidates. Keelzo is built around resurfacing them. Three differences matter:

  1. Rediscovery happens automatically. The moment you post a job, Keelzo matches it against every past applicant, rejected candidate, and talent pool member in your pipeline — no manual search needed.

  2. Scoring is explainable, not a black box. Every match comes with a 6-dimension breakdown (skills, experience, seniority, industry, education, stability) so you can defend your shortlist to hiring managers.

  3. Built-in AI assistants for both recruiters and candidates. Recruiters get help asking better interview questions. Candidates get instant answers about your role and company, freeing your team from repetitive Q&A.

Plus a 14-day free pilot with no credit card.

How would you describe the primary audience of your product?

Keelzo's answer

Keelzo is built for three types of recruiters:

  • In-house recruiters at growing companies (50–500 employees) sitting on ATS databases full of forgotten candidates
  • Agency recruiters managing candidates across multiple client engagements who need to resurface past relationships when new requirements come in
  • TA leads and hiring managers who want defensible, explainable shortlists instead of gut-feel resume skims

Keelzo is especially useful for teams that hire frequently, have 500+ candidates accumulated in their pipeline, and are tired of paying for LinkedIn Recruiter when better candidates already applied.

What's the story behind your product?

Keelzo's answer

Keelzo started after a conversation with a recruiter friend in Bangalore. She had spent 6 weeks trying to fill a senior backend role using LinkedIn Recruiter, Naukri, and cold outreach. Nothing was working.

I asked her one question: "How many candidates are in your ATS right now?"

She checked. 847.

Thirty minutes of manual filtering across past applicants, "good but not now" candidates, and career page visitors revealed 11 strong matches she had never looked at. She emailed five of them that night. One is interviewing this week.

Her words: "I've been paying for LinkedIn Recruiter for 2 years and the best candidate was already in my own database."

That conversation made it clear: recruiting isn't broken because there aren't enough candidates. It's broken because the best ones are already in your system, invisible. Keelzo exists to make them visible.

Built from Kochi, India.

Which are the primary technologies used for building your product?

Keelzo's answer

Keelzo is built on a modern web stack with AI/ML at its core

Keelzo is web-based, accessible from any modern browser, and built with security and data privacy as foundational principles.

Who are some of the biggest customers of your product?

Keelzo's answer

  • Keelzo is in early access, working with select recruiters and TA teams across India, UAE, and Singapore who are piloting the platform on real hiring requirements.

User comments

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