Percy vs Screenster

Percy automates visual testing by capturing DOM snapshots and assets, rendering them across browsers, and comparing results with earlier snapshots to flag visual changes. Responsive checks use configurable widths, while snapshot stabilization freezes animations and other dynamic elements to reduce false positives. Percy groups snapshots into the same build when tests run in separate processes or on different machines. Its review workflow includes status updates, notifications, comments, comparisons, and automatic diff matching. Listed integrations include GitHub, GitLab, Slack, Storybook, WebdriverIO, and Jenkins. Documented frameworks include Selenium, Playwright, Cypress, Puppeteer, Ember, Appium, and others. Percy documentation describes testing across real devices and desktop and mobile browsers. The free plan includes 5,000 screenshots per month, unlimited users, and unlimited projects. Desktop costs $199 a month, billed annually, for 10,000 screenshots per month; Desktop & Mobile costs $599 a month, billed annually, for 25,000 screenshots per month. Paid plans have fixed screenshot allowances, and additional usage is charged at the overage rate. Enterprise pricing is custom and unlisted.

Screenster is a UI regression testing tool for automating tests of web interfaces. Its no-code recorder captures actions on web pages without requiring code, element IDs, checks, or assertions. Test runs can be compared with a baseline to identify new, deleted, or changed visual and page content. Smart selectors can find page elements after they move or change and adjust timeouts automatically. Users can also write JavaScript or Java tests against the Selenium API within Screenster. The locally installed server can run offline. Screenster says it stopped running its online servers after August 1, 2023, and made local use free without restrictions. The installation guide requires Windows and lists Windows 8, 8.1, 10, Server 2012, and Server 2016; local browser documentation lists Chrome, Firefox, and Internet Explorer. Plans include Free at free, Basic at $25 a month, Standard at $45 a month, and Premium at $75 a month, each billed per tester per month.