Best API tester apps for Android (2026)
Cards on the table: we make ReqPad, which is now on Google Play too. We wrote this guide anyway because the question deserves a straight answer — Android's API-tool shelf is uneven, and a lot of "top 10" lists are ad-farm filler. Here's what's actually worth installing.
The short list
| App | Play installs* | What it actually is | Watch for |
|---|---|---|---|
| Teste (ex-API Tester) | 100K+ · 4.3 (4.5K) | full mobile dev workspace: requests, scripts, terminal | recent reviews report crashes on some Pixel/Samsung devices — verify on yours |
| Reqable | 100K+ | API client + capture/debugging proxy; pairs with its desktop app | proxy workflow has a learning curve |
| HTTP Request Shortcuts | 100K+ | open-source; fire predefined requests from home-screen shortcuts | automation tool, not an exploratory client |
| MQTT Dash / IoT MQTT Panel | 100K+ each | MQTT-only dashboards for IoT work | single-protocol by design |
| Postman web (browser) | — | real Postman, desktop layout in a phone browser | tap targets and Agent assumption; fallback only |
| ReqPad (us) | new on Play (2026) | 6-protocol client (REST→gRPC/Socket.IO) with enterprise auth, on Android & iOS | newer on Android; REST & WebSocket free, heavy protocols are Pro |
* Google Play public listing data, June 11, 2026. Always re-check current reviews — mobile app quality moves fast in both directions.
Teste — the incumbent, with an asterisk
The category leader by installs, and the broadest feature set on Android: requests plus scripting plus a terminal. If it runs well on your device, it's the most complete option today. The asterisk: at the time of writing, a noticeable share of recent Play reviews report crash-on-launch issues on some Pixel and Samsung devices. That may be fixed by the time you read this — the honest advice is to install, test on your phone for a day, and decide on evidence. Our iOS-side comparison: Teste vs ReqPad.
Reqable — when you also need to see the traffic
Closer to "Charles Proxy with a client attached" than a plain API tester: capture and inspect device traffic, then replay and modify requests. If your debugging style is watch what the app actually sends rather than compose requests from scratch, this is the strongest Android pick — especially paired with its desktop counterpart.
HTTP Request Shortcuts — a different job, done beautifully
Open source and quietly excellent: define a request once, put it on your home screen, fire it with one tap. It's not an exploratory client — it's automation for requests you send repeatedly (toggle the smart home, kick a CI job, hit a health endpoint). Many developers run it alongside a full client rather than instead of one.
Where ReqPad fits
ReqPad is now on Google Play — the six-protocol client (REST, WebSocket, GraphQL, gRPC, MQTT, Socket.IO) with enterprise auth and one-tap Postman import, on Android, iOS, iPadOS and macOS. On this list it's the protocol-depth pick: if you need gRPC, MQTT or Socket.IO from a phone — not just REST — it's the only option here that covers all six. REST and WebSocket are free forever; the heavy protocols and advanced auth are Pro, with a 7-day free trial. Get it on Google Play.
FAQ
What happened to the app called "API Tester" on Android?
It was renamed: API Tester (apitester.org) is now called Teste. Same developer and app, new brand — still the category install leader with 100K+ downloads on Google Play.
Is there an official Postman app for Android?
No. Postman offers desktop and web clients only. The web client loads in a mobile browser but is designed for desktop screens — see our full guide on the Postman mobile situation.
Is ReqPad on Android?
Yes — ReqPad is live on Google Play (and the App Store). It is the only mobile API client here that covers six protocols (REST, WebSocket, GraphQL, gRPC, MQTT, Socket.IO) with enterprise auth and one-tap Postman import. REST and WebSocket are free forever; the heavy protocols are Pro, with a 7-day free trial.
What should I check before trusting any of these with production debugging?
Three things: the most recent reviews for your specific device model (stability varies), whether your auth scheme is supported (OAuth2 and signed schemes like AWS SigV4 are where most mobile clients stop), and where your request data is stored.
Now on Android — and iOS, iPad & Mac.
ReqPad runs six protocols with enterprise auth — REST & WebSocket free forever, the heavy protocols Pro with a 7-day free trial.