Software Alternatives, Accelerators & Startups

Screenster VS Emisar.dev

Compare Screenster VS Emisar.dev and see what are their differences

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Screenster logo Screenster

10x faster UI testing without a line of code.

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.
  • Screenster Landing page
    Landing page //
    2021-10-19
  • 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.

Emisar.dev

Website
emisar.dev
$ Details
freemium $20.0 / Monthly (per runner)
Startup details
Country
United States
State
CA
Founder(s)
Andrew Dryga
Employees
1 - 9

Screenster features and specs

  • Ease of Use
    Screenster offers a user-friendly interface that allows users to easily navigate and set up their automated tests without needing extensive coding knowledge.
  • Visual Regression Testing
    Screenster provides robust visual regression testing capabilities, allowing you to detect any visual changes in your web applications effectively.
  • Cloud-Based
    Because it's a cloud-based solution, Screenster does not require any complex local setup, contributing to ease of accessibility and reduced maintenance.
  • Team Collaboration
    Screenster provides features that enhance team collaboration, such as shared test projects and dashboards for team visibility.
  • Smart Comparison Algorithms
    It features smart algorithms to compare screenshots accurately, which helps in flagging only the meaningful changes and reducing false positives.

Possible disadvantages of Screenster

  • Pricing
    Screenster can be relatively expensive compared to some other test automation tools, especially for smaller businesses or individual developers.
  • Limited Programming Language Support
    The platform may have limited support for various programming languages and integrations, confining more experienced developers who prefer custom scripting.
  • Dependency on Network
    Being a cloud-based solution means that it is highly dependent on network stability and speed, which might be a limitation in environments with poor connectivity.
  • Scalability
    As of the latest data, some users have reported that Screenster may not scale well for extremely large projects or enterprise-level testing requirements.
  • Learning Curve for Complex Scenarios
    While it's easy to use for basic tests, setting up complex testing scenarios can still have a learning curve, requiring additional time and effort to master.

Emisar.dev features and specs

No features have been listed yet.

Analysis of Screenster

Overall verdict

  • Screenster is considered a good tool for teams looking to streamline their UI testing processes without investing heavily in manual testing or complex scripting. Its features are particularly beneficial for teams that need a quick setup and straightforward operation.

Why this product is good

  • Screenster is a cloud-based visual regression testing tool aimed at simplifying UI testing processes. It automatically captures and monitors visual changes in the UI over time, reducing the effort required to manually spot differences. The platform is designed to be user-friendly, supporting no-code test creation, making it accessible to both technical and non-technical team members. It integrates with CI/CD pipelines and supports cross-browser testing.

Recommended for

    Screenster is recommended for small to medium-sized development teams, QAs, or businesses that want to implement efficient UI testing without extensive overhead. It's also suitable for teams that need frequent UI updates and want to ensure visual consistency across different browsers.

Screenster videos

Editing UI Tests with Screenster

More videos:

  • Review - Toddy Screenster Hands-On Review
  • Review - Gmail visual testing automation with Screenster

Emisar.dev videos

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

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Category Popularity

0-100% (relative to Screenster and Emisar.dev)
Website Testing
100 100%
0% 0
AI Tools
0 0%
100% 100
Browser Testing
100 100%
0% 0
Infrastructure Monitoring

Questions & Answers

As answered by people managing Screenster 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

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Screenster and Emisar.dev

Screenster Reviews

20 BEST Selenium Alternatives in 2021
Screenster is a cloud-based UI testing platform. It is used for visual regression testing of web applications and websites. It is one of the best selenium webdriver alternatives that captures a screenshot of each step and stores it as a baseline.
Source: www.guru99.com
Top 10 Best Selenium Alternatives You Should Try
Screenster is an ultimate visual regression testing tool for websites and web applications. It provides a cloud-based platform to perform UI (User Interface) automation testing. Screenster promises 10 times more productivity than other Selenium alternatives.
Best Selenium Alternatives (Free and Paid) in 2021
Screenster is an automation testing solution based on visual comparisons. It is a regression testing tool for websites and web applications, one of the alternatives to selenium. This UI testing automation cloud or self-hosted tool can be used without writing a single line of code. It helps non-technical users a lot in creating better tests.

Emisar.dev Reviews

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What are some alternatives?

When comparing Screenster and Emisar.dev, you can also consider the following products

Browsershots - Browsershots makes screenshots of your web design in different browsers.

Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

browserling - Live interactive cross-browser testing from your browser.

Litmus - litmus tests and tracks your email campaigns, so you can always put your best design forward.

CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.

Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.