Appetize.io alternative for Android testing and AI agents

Most people searching for an appetize.io alternative like the idea behind it, an app running in a browser tab with nothing to install, and have run into a limit of the way Appetize does it. Usually the limit appears when a demo tool is asked to do testing work: keep a phone signed in overnight, match a specific phone model, or give an AI agent a device for an hour.

This article explains what Appetize is, where it fits well, where an Android team usually outgrows it, and how to move the testing part of your work in five steps. It does not quote Appetize prices, which change; its pricing page has the current plans.

What Appetize is and who it fits

Appetize streams iOS simulators and Android emulators to a web browser. You upload a build, and anyone with the link can tap through the app on a virtual device, with nothing to install. The same session can be embedded in another page through its JavaScript SDK, which is why you meet Appetize inside product websites, documentation and support tools.

Its site lists the teams it serves: sales, customer support and training, content and editorial, design, and engineering and QA. For engineers there is a REST API, a CLI, CI/CD integrations and a Playwright integration for automated tests. The company also presents Appetize as a mobile layer for AI agents, which drive the same devices through the CLI or the REST API.

A few facts from its documentation shape what the product is good at:

• The Android lineup is a set of emulator profiles named after Google devices, from the Nexus 5 through the Pixel 4 to Pixel 9 and the Pixel Tablet, plus a Galaxy Tab. The versions listed run from Android 8.1 to Android 16.
• There is no app store on the devices. Appetize devices do not include Google Play or the App Store, and you upload your app files yourself.
• Sessions are isolated and clear when they end. Streaming stops when the viewer leaves the page or the session times out after inactivity.

The pricing model, in words: billing by total streaming minutes each month, with a set number of active devices that can run at once. When all of them are busy, new users wait in a queue. There is a free plan with a small monthly allowance of minutes and a short limit on session length, and an enterprise option with a private cloud or self-hosting.

For a public demo of an app, this design is close to ideal. Every visitor gets the same clean device, nobody can leave the app in a broken state for the next person, and iOS and Android sit side by side.

Where it stops being the right tool

The things that make Appetize good for demos are the same things that get in the way when the job is testing, long-running work or agents.

Sessions that end

A clean start every time is a feature in a demo and a limit in a test. Many real checks depend on state: sign in once with a test account, use the app over several days, see which notifications arrive the next morning, or watch how the app behaves after an update. One reviewer on G2 mentions losing data after a session sat idle. For that kind of work you want a phone that keeps its apps and data until you decide to reset it.

Emulator profiles instead of phone models

The Android devices on Appetize are named after Google phones. That is enough for most demos. Testing often needs the phones your users actually own: a Samsung mid-range phone, a Motorola, a Xiaomi, each with its own model name, screen size and density. When a bug report names a specific model, you want that model to reproduce it.

Android versions at both ends

A test matrix needs both your oldest supported version and the newest release. Appetize's documentation lists Android versions up to 16 at the time of writing. If your plan includes Android 17, check before you commit.

Apps that come from the store

Because Appetize devices have no app store, every app on them is one you uploaded. That is fine for showing your own build. If your test depends on Google Play or Play services, for example sign-in, purchases or another app your app hands off to, confirm how any service you consider handles them before you build a test plan on it.

Metered streaming for long sessions

Billing by streaming minutes, with a cap on active devices, suits short sessions started by many people. It is a different calculation for an AI agent that works on a phone for two hours, or a phone that should stay on all day. Compare the cost of your longest realistic session, not your shortest.

Agents that speak MCP

Appetize connects agents through its CLI and REST API. If your assistant already speaks MCP, a service with its own MCP server saves you from writing and maintaining that bridge.

What Clousd does differently

Clousd is a cloud phone service: Android running in a data center, set up as a specific phone model and kept for you like a device. It is built for app testing, developers and AI agents.

• Phones built from real models. 150+ models from Samsung, Pixel, Motorola, OnePlus, Xiaomi and others.
• Android 12 to 17, chosen per phone.
• A phone that persists. It keeps apps, logins and data between sessions until you reset it to a fresh state. A new phone is ready in about a minute.
• Access for people and code. A live screen in the browser, a REST API, an MCP server, a Python SDK and ADB over a relay.
• Tasks. Give a phone a goal in plain words, such as "install the build, sign in with the test account and report what the home screen shows", and Clousd's agent does it.
• Country, time zone and language. A phone connects from the country you choose, such as the US, the UK, Germany, Brazil or Indonesia, out of 45 in total, with the matching time zone and language.
• Pay by the minute, with a daily cap. $0.004 a minute while a phone runs, never more than $0.80 a phone a day, or plans from $20 a month. The first 30 minutes are free, no card. See pricing.
• Servers in the EU, in Frankfurt and Helsinki.

What Clousd does not do, to keep the comparison fair: there is no iOS, no embeddable player for public demos on your website, and no Android versions below 12. If those matter, Appetize stays the right tool for that part of your work.

Appetize and Clousd side by side

How to move: a 5-step switch

1. Split demos from tests. Keep the embedded demo on your website where it is. Move only the work that needs state, specific models or long sessions.
2. Choose models and versions. Take the top phones and Android versions from your analytics, and add your oldest supported version and the newest release.
3. Create the phones and install your build. The first phone takes about a minute; your first device walks through it. Install over ADB through the relay and keep logcat open while you test:

adb install -r app-debug.apk
adb logcat -s AndroidRuntime

1. Sign in once, reset when you need to. Set each phone up with its test account and leave it. When a run must start clean, reset that phone to a fresh state instead of creating a new session.
2. Connect your automation and agents. ADB-based test runners connect to the phone as they would to a device on a cable, and your AI assistant connects through the MCP server. The walkthrough for testing an Android app online covers a first full pass from APK to crash log.

If you are comparing more ways to put Android in a browser tab, Android emulator in the browser lays out five of them, and Android emulator online is the shortest route from a link to a running phone.