
Otterly.AI
AI SEO Radar
Profound
Am I Visible on AI
AI Sightline
AiVIS
Appear on AI
Track and optimize your brand visibility across ChatGPT, Claude, Gemini, and Perplexity. Monitor AI mentions, sentiment, citations, and competitor positioning with real-time AI search analytics.

PHP
JavaScript
Kotlin
Java
Python
Typescript
HTML5
A programming language for HHVM that interoperates seamlessly with PHP

Which is more popular?
Based on our record, Hack Lang seems to be more popular. It has been mentioned 22 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | linksii.com | hacklang.org |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Hack Lang is recommended for developers and large-scale organizations already using PHP who want to transition to a more modern and type-safe environment. It is particularly suitable for projects that require high performance and code maintainability, such as large web applications with complex business logic.
Walkthroughs and reviews on video.
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Project .hack Series Review! - The Game Collection
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Linksii and Hack Lang.
Linksii's answer
Linksii is the only AI brand visibility platform that tells you what to do, not just what's happening. While competitors like Peec.ai and Otterly show you monitoring data, Linksii provides actionable recommendations — specific steps to improve your visibility across ChatGPT, Claude, Gemini, and Perplexity. All 4 AI platforms are included on every plan (competitors charge extra per platform), and pricing starts at $89/mo with no hidden add-on costs. Built for marketing teams and agencies who need to understand how AI search is reshaping brand discovery.
Linksii's answer
Three reasons. First, every plan includes all 4 major AI platforms — ChatGPT, Claude, Gemini, and Perplexity. Competitors like Peec.ai only include 3 and charge $20-30/month extra for each additional platform. Second, Linksii doesn't just monitor — it gives you specific, actionable recommendations on how to improve your AI visibility. This is the number one complaint across every competitor's reviews: "tells me what's happening but not what to do about it." Linksii solves that. Third, transparent pricing from $89/month with no credit-per-query gotchas, no platform add-on fees, and unlimited team seats on every plan. Competitors like Profound start at $99/month for ChatGPT only, and Scrunch AI charges $300/month per brand with unpredictable credit consumption.
Linksii's answer
Marketing teams, SEO professionals, and digital agencies who need to understand how their brands appear in AI-powered search. Specifically: mid-market companies ($5M-$500M revenue) whose customers are increasingly using ChatGPT, Claude, Gemini, and Perplexity instead of Google to research products, services, and providers. Also agencies managing AI visibility for multiple client brands — one agency account can monitor 5-50 brands. The common thread is that these teams are seeing organic traffic decline and need to understand the AI search channel that's replacing it.
Linksii's answer
Linksii was born from a simple realisation: the way people discover brands is fundamentally shifting, and most businesses have no idea it's happening. Organic search traffic has dropped 27% year-over-year for many brands, while AI referral traffic has tripled. Millions of people now ask ChatGPT "what's the best CRM for agencies?" or "which accounting firm should I hire?" instead of searching Google. If your brand isn't in those AI-generated answers, you're invisible to a growing share of your market — and you don't even know it. We built Linksii to fix that blind spot. Not just another monitoring dashboard, but a platform that shows you exactly how AI sees your brand, where the gaps are, and what to do about it. Because knowing your visibility score is 42 is useless unless someone tells you how to make it 70.
Linksii's answer
Next.js, React, TypeScript, Tailwind CSS, Supabase (PostgreSQL + Auth), Stripe for billing, and Sanity CMS for the blog. AI integrations are built directly on the Anthropic (Claude), OpenAI (ChatGPT), Google (Gemini), and Perplexity APIs.
Share your experience with using Linksii and Hack Lang. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking Linksii since Apr 2026.
> Make it a compiled language with virtual machine similar to Java. The times of recursively creating PHP-files to serve PHP-files are dated (*cough Smarty). Compilation with checks and strict typing will increase the code quality... - Source: Hacker News / 27 days ago
I'm glad that PHP has adopted more and more from Hack, Facebook's once fork and now completely separate language - https://hacklang.org/. It was never going to replace it (Go's success separate from Google has astounded me to be honest)... - Source: Hacker News / about 1 year ago
Doesn’t Facebook still run most of their backend on Hack[0] (compiled PHP subset)? [0] https://hacklang.org/. - Source: Hacker News / almost 2 years ago
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