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BLOCK THIS! VS Emisar.dev

Compare BLOCK THIS! VS Emisar.dev and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Reviews
  3. ยป Alternatives

BLOCK THIS! logo BLOCK THIS!

Block This 3.0 is a FREE and Open Source ad blocker for Android that works in all apps and browsers!

Emisar.dev logo Emisar.dev

One governed MCP server connects any AI agent to a finite action catalog, enforced on-host with pack trust, policy gates, human approvals, and a hash-chained audit trail.
  • BLOCK THIS! Landing page
    Landing page //
    2023-08-26
  • Emisar.dev Approvals
    Approvals //
    2026-07-21
  • Emisar.dev Audit Log
    Audit Log //
    2026-07-21
  • Emisar.dev Policies
    Policies //
    2026-07-21
  • Emisar.dev Runner fleet
    Runner fleet //
    2026-07-21

Emisar is the last MCP server youโ€™ll need to install: a Zero-Trust gateway connecting Claude, Cursor, ChatGPT, and any AI agent to your infrastructure. One server handles production access, debugging, alerts, and internal operations, with new capabilities added as packs. Agents can inspect real production state, debug what they shipped, and help resolve incidents. Safe reads run automatically; policy allows, blocks, or routes risky actions for approval. No SSH keys, VPNs, remote shells, or standing shell access โ€” and every call is recorded.

BLOCK THIS!

Website
dropcatch.com
Pricing URL
-
$ Details
Edit details

Emisar.dev

Website
emisar.dev
Pricing URL
Official Emisar.dev Pricing
$ Details
freemium $20.0 / Monthly (per runner)
Startup details
Country
United States
State
CA
City
Mountain View
Founder(s)
Andrew Dryga
Employees
1 - 9
Edit details

BLOCK THIS! features and specs

  • Ad Blocking
    BLOCK THIS! effectively blocks ads, providing a smoother and less cluttered browsing experience.
  • Privacy Protection
    The app helps protect user privacy by blocking trackers and other intrusive scripts, which can help keep your personal information secure.
  • Bandwidth Saving
    By blocking ads and trackers, BLOCK THIS! reduces the amount of data loaded on webpages, saving bandwidth and potentially speeding up browsing.
  • Battery Efficiency
    Blocking ads can lead to less resource consumption, potentially extending the battery life of mobile devices.
  • Free to Use
    The app is available for free, making it accessible to a wide range of users without the need for a subscription or purchase.

Possible disadvantages of BLOCK THIS!

  • Compatibility Issues
    BLOCK THIS! may not work smoothly on all devices or with all browsers, which might limit its usability for some users.
  • Potential Content Blocking
    Occasionally, the app may block legitimate content along with ads and trackers, which can disrupt the user experience on some websites.
  • Updates and Support
    The frequency and reliability of updates and ongoing support can be variable, potentially leading to performance issues or lack of new features over time.
  • Root Requirement for Android
    On some Android devices, full functionality may require root access, which is not recommended for all users due to security and warranty concerns.
  • Potential Ethical Concerns
    Blocking ads raises ethical questions regarding the support of content creators who rely on advertising revenue to provide free content.

Emisar.dev features and specs

No features have been listed yet.

Analysis of BLOCK THIS!

Overall verdict

  • BLOCK THIS! is considered a good option for users seeking a lightweight and effective method to block ads and enhance privacy protection. Its DNS-based blocking can be less intrusive compared to other ad-blockers.

Why this product is good

  • BLOCK THIS! is a tool designed to block unwanted ads and protect user privacy while browsing the internet. It uses DNS blocking to stop ads before they even reach the browser, which can improve page load times and reduce data usage. Additionally, it may provide some protection against malicious sites.

Recommended for

  • Users looking to speed up web browsing by reducing ads and other unwanted content.
  • Privacy-conscious users who want to avoid tracking by advertisers.
  • Individuals seeking a DNS-based ad blocking solution that works on multiple devices.

Category Popularity

0-100% (relative to BLOCK THIS! and Emisar.dev)

BLOCK THIS!

Emisar.dev

Security & Privacy
100 100%
Security & Privacy
0% 0
AI Tools
0 0%
AI Tools
100% 100
Monitoring Tools
100 100%
Monitoring Tools
0% 0
Infrastructure Monitoring
0 0%
Infrastructure Monitoring
100% 100

Questions & Answers

As answered by people managing BLOCK THIS! and Emisar.dev.

How would you describe the primary audience of your product?

Emisar.dev's answer:

emisar is for SRE, DevOps, platform engineering, infrastructure, and security teams that want AI agents to inspect and operate production systems. It is especially relevant to teams managing multiple Linux hosts, clusters, databases, cloud services, or regulated environments where unrestricted shell access and incomplete audit records are unacceptable.

Which are the primary technologies used for building your product?

Emisar.dev's answer:

The hosted control plane and operator interface use Elixir, Phoenix, LiveView, PostgreSQL, and Tailwind CSS. The host runner and MCP bridge are written in Go. Action packs use YAML and JSON Schema, while production infrastructure is managed with Terraform on Google Cloud. The system communicates through MCP, OAuth 2.1, TLS, and WebSockets.

Who are some of the biggest customers of your product?

Emisar.dev's answer:

  • Blitz.gg - game analytics for billions of matches and a pretty large infrastructure.

What's the story behind your product?

Emisar.dev's answer:

Founder Andrii Dryga spent a decade working as a CTO, full-stack engineer, SRE, and DevOps engineer. He experienced the cost of running the wrong command on the wrong cluster, while also seeing AI solve operational problems in seconds. emisar grew from the need to preserve both truths: AI agents are useful, and production access must remain bounded. Its answer is to give agents a reviewed catalog of operations instead of a blank terminal.

What makes your product unique?

Emisar.dev's answer:

emisar lets AI agents work on real infrastructure without giving them a shell. Agents choose from a finite catalog of typed, versioned actions. Policy decides what runs, what requires approval, and what is denied, while an outbound-only runner verifies the action again on the host. New capabilities arrive as packs behind the same MCP integration, and every request is recorded in both a searchable audit trail and a tamper-evident host journal. [

Why should a person choose your product over its competitors?

Emisar.dev's answer:

Choose emisar when you want an agent to keep investigating and handling routine operations without handing it SSH credentials or supervising every call. Compared with raw shell access, copy-paste workflows, or one-off MCP servers, emisar provides reviewed action contracts, host-level enforcement, risk-based policy, scoped access, approvals, pack integrity checks, and a durable audit trail. It is built specifically for governed infrastructure access rather than generic automation.

User comments

Share your experience with using BLOCK THIS! and Emisar.dev. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, BLOCK THIS! seems to be more popular. It has been mentiond 22 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

BLOCK THIS! mentions (22)

  • Blockada 5 alternative?
    Block This 3.1 VPN ad-blocker works just as well as adguard dns for older Android 8.0- OS. Very easy to use. Source: over 2 years ago
  • Nightmare on my kindle fire 8
    Try installing block-this on it and see if it helps. Https://block-this.com. Source: about 3 years ago
  • Are the โ€œJesusโ€ ads on this site getting more aggressive?
    For android devices block this is an app that can block nearly all mobile ads, both in apps and in browsers. Source: over 3 years ago
  • Appliance makers sad that 50% of customers wonโ€™t connect smart appliances
    I think https://block-this.com/ does what you propose. Source: over 3 years ago
  • Is possible to make a universal patch for no ads that work on every apk?
    Maybe check out the canonical page instead: https://block-this.com. Source: over 3 years ago
View more

Emisar.dev mentions (0)

We have not tracked any mentions of Emisar.dev yet. Tracking of Emisar.dev recommendations started around Jul 2026.

What are some alternatives?

When comparing BLOCK THIS! and Emisar.dev, you can also consider the following products

AdShield.ai - AI-powered placement exclusion lists for Google Display campaigns

Ads-Shield - Ads-Shield: Content Blocker is an all-in-one ad-blocking app that stops all kinds of ads in your browser, Facebook, YouTube, and even other third-party apps.

Ad Skipper for YouTube - Ad Skipper for YouTube โ€“ Skip and Mute YouTube ads is a powerful Android tool specially designed for YouTube streaming lovers who want to enjoy the high-quality fast streaming experience without any irritation from ads.

Bromite - Bromite is Chromium plus ad blocking and privacy enhancements; take back your browser!

AdClear - AdClear platform provides Tracking, Analysis and Optimization of the online marketing activities.

Adblock Browser - Adblock Browser for Android is a fine tool created and published by Eyeo GmbH.

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