Your recommended stack

3 areas to cover, based on what you told us

“We don't know if it works on other browsers or devices”

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1. Cross-Browser & Device Cloud

Because you said: “We don't know if it works on other browsers or devices”

Buyer’s guide

BrowserStackBest fitfrom $29Paid

The largest browser and real-device cloud, with 3,500+ device/browser combinations.

Why this fits you

The broadest device and browser matrix available, including older versions and new devices quickly.
Works with essentially every automation framework, so migration is low-risk.

Main limitation

Parallel-session pricing gets expensive fast, and idle capacity is still billed.
Remote sessions are slower than local execution, lengthening feedback loops.

Sauce Labsfrom $39Paid

Enterprise-grade device cloud with deep analytics and strong security posture.

Why this fits you

Strong enterprise security and compliance story, including private device pools.
Test analytics genuinely help identify systemic flakiness rather than individual failures.

Main limitation

Generally the most expensive of the major device clouds.
Device matrix is slightly narrower than BrowserStack's.

LambdaTestfrom $15Free tier

Cost-competitive device cloud with an AI-assisted test-orchestration layer.

Why this fits you

Best price-to-capability ratio among the major device clouds.
HyperExecute meaningfully reduces wall-clock time on large suites.

Main limitation

Support quality is reported as more variable than the incumbents.
Newest devices sometimes arrive later than on BrowserStack.

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2. Mobile App Testing

Because you said: “We don't know if it works on other browsers or devices”

Buyer’s guide

AppiumBest fitOpen source

The cross-platform standard for native, hybrid and mobile-web automation.

Why this fits you

One API and one test suite for both platforms, in the language you already use.
Every device cloud supports it, so you stay portable.

Main limitation

Notoriously slow and flaky compared to the native frameworks it wraps.
Setup is a genuine project: drivers, Xcode, provisioning, Android SDK, versions.

EspressoOpen source

Google's native Android UI testing framework. Fast, stable, Android-only.

Why this fits you

Automatic UI-thread synchronisation makes tests both fast and reliable.
First-party Google support, updated alongside Android itself.

Main limitation

Android only.
Testing across app boundaries requires UiAutomator alongside it.

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3. Visual Regression Testing

Because you said: “We don't know if it works on other browsers or devices”

Buyer’s guide

PercyBest fitfrom $599Free tier

Visual review as a pull-request check, integrated with your existing E2E suite.

Why this fits you

Plugs into an existing suite with a few lines rather than requiring new tests.
Server-side rendering removes machine-to-machine screenshot inconsistency.

Main limitation

Screenshot-based billing escalates faster than teams expect.
Dynamic content requires careful masking or you drown in false diffs.

Chromaticfrom $149Free tier

Visual testing and review built by the Storybook team, for Storybook.

Why this fits you

Zero-effort setup if you already have Storybook
The hosted review UI is genuinely usable by designers and product managers.

Main limitation

Strongly tied to Storybook; without it much of the value disappears.
Component-level, not full-page — it will not catch a broken page layout.

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