Real-browser performance testing
Evaluat runs each virtual user in an isolated real browser and reports Core Web Vitals, Navigation Timing, and Apdex under load, with session video, network logs, and console logs for every user.
Both tools load-test applications. They go about it very differently. Here's where each one fits, written as fairly as we can manage.
Evaluat runs each virtual user in an isolated real browser and reports Core Web Vitals, Navigation Timing, and Apdex under load, with session video, network logs, and console logs for every user.
AppLoader, from Automai (formerly NRG Global), drives the real application through its on-screen GUI using image recognition and OCR. It deploys bots that log in and click like users to load-test almost any surface (Citrix and virtual desktops, thick desktop clients, Java, thin clients, and web) with nothing installed on the application servers.
The categorical difference: AppLoader drives the real application through its on-screen GUI with image recognition, so it can load-test almost anything: Citrix, desktop clients, thin clients, and web apps. Evaluat drives the real browser DOM for web applications and reports Core Web Vitals, Apdex, and a forensic record of every session.
| Capability | Evaluat | AppLoader |
|---|---|---|
| Real browser DOM per virtual user | ||
| No-code recorder | ||
| Core Web Vitals (LCP, INP, CLS, FCP) under load | ||
| Apdex score | ||
| Executive Summary | ||
| Per-session video for every user | Screenshots only | |
| Full network and console logs per session | ||
| Step-by-step pass/fail playback | ||
| Hosted in-region data residency | Self-hosted | |
| Tests non-web apps (Citrix, desktop, thin client) | ||
| On-premise deployment |
You need to load-test more than a web app. AppLoader drives the real GUI of almost anything: Citrix and virtual desktops, thick desktop clients, Java, thin clients, and legacy multi-application workflows. Its image and OCR approach does not care what the technology is. Evaluat tests web applications in the browser and nothing else.
You need to keep everything inside your network. AppLoader runs on-premise, entirely within your own infrastructure, which suits air-gapped, healthcare, or banking environments. Evaluat is a cloud platform.
Your target is a web app and your KPIs are Core Web Vitals. Evaluat runs the real browser DOM, so it reports LCP, INP, CLS, FCP, and an Apdex score for the run. AppLoader works at the pixel level with image recognition and OCR, so it measures each step's response time but cannot see the browser's Web Vitals.
Your stakeholders need the result, not the raw numbers. Evaluat distils each run into an Executive Summary: a plain-language verdict with a health score, the key findings ranked by severity, and the recommended fixes. AppLoader gives you statistics, graphs, and failure screenshots to interpret yourself.
You need browser-level forensics. For every virtual user Evaluat keeps session video, full network logs, console output, and step-by-step pass and fail. AppLoader captures failure screenshots, not the browser's network or console, because it never touches the DOM.
You need data residency without running your own infrastructure. Evaluat keeps each test's data in the region the test ran in, as a hosted service. With AppLoader, in-region data means standing up and maintaining on-premise machines yourself.
No. AppLoader automates the application's on-screen GUI with image recognition and OCR, so it has no access to the browser DOM and cannot read Core Web Vitals. It measures each step's response time as seen on screen. Evaluat reports LCP, INP, CLS, and FCP from the real browser.
AppLoader drives the real application GUI, including a real browser window, but it does not use a browser engine or read the DOM, so it has no Web Vitals and no network or console capture. Evaluat drives the browser DOM directly.
After a test, Evaluat produces an Executive Summary: a plain-language verdict with a health score, the most important findings ranked by severity, and recommended fixes, grounded in the run's Core Web Vitals, Apdex, error rates, and slowest URLs. It turns a dense report into a two-minute read you can share with stakeholders.
No. Evaluat tests web applications in the browser. Citrix, virtual desktops, thick clients, and other non-web surfaces are what AppLoader image-based approach is built for.
Yes. Every virtual user has session video, full network logs, console output, and step-by-step pass and fail status. When a run regresses you can watch the exact session that failed instead of inferring it from aggregate charts.
For web applications, Evaluat gives you real-browser Core Web Vitals and forensics with no code. For Citrix, desktop, or legacy GUI applications, no; AppLoader image-based approach is built for those surfaces.