Battery health status, temperature and live power in watts; dead-pixel, mic and camera tests; a Wi-Fi speed test and a 0–100 security audit, with plain-English AI explanations when you ask. No root, no sign-up, mostly offline. In Bangladesh, the app walks you through BTRC's IMEI check before you buy a phone.
A phone health checker should test the screen, mic, camera and network, not only the battery. DeviceGPT checks battery health, dead pixels, the mic, the camera and WiFi speed in one app, without root. It is for people deciding whether to keep, repair or sell a phone. Its mic test records you and plays you back.
ChatGPT is a trademark of OpenAI. Gemini is a trademark of Google. Claude is a trademark of Anthropic. Perplexity is a trademark of Perplexity AI. DeviceGPT and Teamz Lab are not affiliated with or endorsed by these companies.
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Battery health, WiFi speed test, mic test, camera and screen tests, phone security audit—in one scan. No root.
DeviceGPT runs a Model Context Protocol server on your phone. Pair it to Claude Desktop, ChatGPT Desktop or Cursor on your PC with a PIN or QR code, and the assistant can read your real battery, storage, network and permission data — then answer questions about your actual device instead of guessing. Any MCP-over-stdio client works with the same JSON.
Full-screen colour sweeps to hunt dead and stuck pixels, plus a scratch grid and a multi-touch check that counts how many fingers the screen registers at once. You look at the screen and mark what you see; the phone cannot see its own display. Useful before you buy a used phone, and before you argue with a warranty desk.
A camera check for the front and rear cameras: it confirms each camera opens, captures a frame and locks focus. It does not grade picture quality, so you look at the result yourself and judge it.
On a phone in Bangladesh, or with the app in Bangla, DeviceGPT walks you through BTRC's official-phone check before you buy or sell a handset: dial *#06# to see the IMEI, type it in, and the app checks the digits for typing mistakes, then opens the SMS (KYD to 16002), the *16161# dial code or the NEIR website with the number filled in. The app never reads the IMEI itself and never gives the verdict: the answer comes from BTRC.
Logs each charge session and tracks overnight drain. The cycle count shown is an estimate calculated from battery capacity, not a count read from the battery.
Check battery health, storage, temperature, and performance. See live device power draw in watts, a split by component — screen, mobile network, memory and Wi‑Fi and app screen time — Android gives apps no per-app battery figures, so DeviceGPT does not pretend to. Export data for deeper analysis.
See which apps hold microphone, camera and SMS permission, with plain-English notes and suggested actions—no root required. Android does not let one app see another app's live mic or camera use, so DeviceGPT reviews permissions instead of guessing.
Run internet speed and network trust tests. Check download/upload speed, ping and jitter, and whether a Wi-Fi sign-in page is intercepting your connection, in one tap.
Generate a signed phone report with a shareable check code. Enter the original price and Ask AI can estimate a resale value from the report. Spot sensor spoofing.
Tap Ask AI after any scan to get plain-English fixes. The scan report goes to an assistant only when you tap Ask AI; scan scores and phone model are uploaded to the global leaderboard.
A home screen widget shows health score, battery and temperature at a glance. Tap to open the app.
Find what could read your keystrokes or screen — enabled keyboards, accessibility services with screen access, apps reading your advertising ID, sideloaded apps — without root. Plain-English results with suggested actions (revoke permissions, uninstall).
See if sensors are being spoofed. Part of the full diagnostics run with no root access.
One full scan covers battery, storage, RAM, temperature, mic/camera permissions, speed, and privacy. Single health score and clear results.
Open DeviceGPT and run a full phone health scan. Battery, storage, mic/camera permissions, speed, and privacy are checked in one go.
Get a certified phone report for resale or support. Spot sensor spoofing. No confusing graphs—just clear results.
Tap Ask AI to send your scan to ChatGPT, Gemini, Claude, or Perplexity. Get instant fixes like "Battery is overheating, try reducing background apps."
DeviceGPT is the ideal battery health android app for anyone who wants a fast, reliable tool on your phone.
Free phone health check: WiFi speed test, battery health, mic test, camera and screen tests, and a security audit in one scan. No root, no signup, mostly offline.
Whether you need it for work, travel, or daily use, DeviceGPT delivers a simple experience with no clutter.
Most phone health check apps show raw numbers. DeviceGPT runs rule-based checks and adds optional AI explanations of what the numbers mean. One scan covers battery health, storage, temperature, sensors, network, and privacy-style signals—then Ask AI turns the results into plain-English next steps via ChatGPT, Gemini, Claude, or Perplexity. No account needed. Most of the experience works offline.
Battery health. See real battery health data that many Android phones do not show by default: health status, temperature, live power in watts, and charging behavior. Then tap Ask AI and get “battery is overheating — close background apps”—not just a percentage.
Privacy and security. See which apps hold mic and camera permission, which keyboards and accessibility services could read your screen, and suggested actions (like tightening permissions)—no root. Sensor spoofing checks are part of the same phone security check. DeviceGPT does not detect spyware by name; it lists the signals and permissions spyware would need, so you can act on them.
Network and daily use. Run speed and signal checks in one flow, then keep a home screen widget for health score, battery and temperature—tap through to the app when something looks off.
Many Android phones still have no battery health screen in Settings, and where one exists it is often a single status line. That leaves users searching for a battery health app that can show health, degradation signals and what is pulling power. DeviceGPT fills that gap, with an optional AI explanation of what the numbers mean.
The battery view shows temperature, health status, live power draw in watts, a component breakdown, charging behaviour and an estimated charge-cycle count. Android keeps per-app battery figures away from apps, so the app list ranks screen time, and says so. You get a clear picture of whether your battery is degrading or just being pulled by heavy apps. Export to CSV or tap Ask AI for a plain-English explanation. Apps like AccuBattery or Battery Guru show the data; DeviceGPT adds a plain-English explanation when you ask for one.
If you have been searching for battery health android, check phone battery health, or the best battery app for Android, DeviceGPT covers it alongside storage, RAM, privacy, and network in one scan—not a single-purpose tool.
Mic test. DeviceGPT includes a mic test that records a short input sample, measures level and noise floor, and plays it back instantly. Pair it with the permission review to see which apps are allowed to use the microphone. The recording never leaves your phone.
Charging check. Plug in your charger and the battery view shows the charging power in watts, the charger type (AC, USB or wireless) and an estimate of time to full, and each charge session is logged. Useful when your phone “charges slowly” and you want a number rather than a feeling.
WiFi speed test. Download, upload, ping and jitter — built into the diagnostic flow. No separate Speedtest app needed; WiFi speed test on Android is right next to your battery health readout.
All three sit alongside the phone hardware test (multi-touch, screen colours, cameras) and the battery view in a single app — no juggling separate utility apps.
DeviceGPT is built as an Android diagnostics tool: battery, storage, RAM, temperature, mic/camera permissions, connectivity, and privacy-oriented checks in a single pass. You get one phone health score and a certified-style report you can share or hand to an AI for explanation.
The phone hardware test covers a multi-touch check, dead and stuck pixels, the microphone and a camera open-and-focus check, plus sensor information and spoofing checks—run them in one diagnostic flow instead of downloading separate tester apps. DeviceGPT combines what a device info app shows (specs, system info, build details) with what a phone diagnostic app tests (does the hardware actually work?). All of it uses standard Android APIs—no root.
DeviceGPT includes a full security scan (called the Zero Trust Dashboard) that scores your device 0–100 across three areas:
It looks for mechanisms, not names: an app cannot read your keystrokes without being an enabled keyboard or an accessibility service, and cannot scrape your screen without screen access, so those are what it lists. Android does not let one app see another app’s live mic or camera use, so DeviceGPT shows which apps hold that permission rather than pretending to a timeline. If you have ever searched ”is my phone hacked”, the Zero Trust Dashboard gives you a scored list of risk signals to review—not a verdict on whether you were hacked. Sensor spoofing detection is included in the same run.
DeviceGPT is not antivirus—no app can guarantee “spyware removal.” It is a phone security check that shows you the signals and permissions so you can make informed decisions, without root.
DeviceGPT generates a certified phone report with a phone condition check. For a phone resale value, enter the original price and Ask AI estimates a figure from the report. Use it when selling your device, filing a support ticket, or proving device condition to a buyer. The report covers battery condition, hardware test results, storage, and diagnostics—everything a buyer or support agent needs.
Verified reports include a shareable code and deep device insight. Scan scores and your phone model are uploaded to a global leaderboard (anonymous sign-in by default), where you can compare your device by areas like battery, privacy, and performance. The device certificate reinforces trust when someone else needs to believe the snapshot.
A device assessment is the structured check a carrier store, buyback service, or IT desk runs before they will quote you a price or accept a handset: is the battery worn, does the hardware still respond, has the software been tampered with, and can any of it be proven. DeviceGPT runs the same categories on-device, in one scan, with no root and no counter visit.
What one device assessment run covers:
The output is a single health score plus a certified device assessment report with a shareable code. The certificates are signed with an ECDSA key held in the phone’s hardware keystore and checked against the stored record, with tamper detection — the difference between a screenshot a seller can edit and a number a buyer can independently check. That verification is why the report is worth attaching to a resale listing or a support ticket rather than describing the condition in words.
Where a store assessment still wins: physical inspection. No app can see a hairline frame crack, a lifted screen edge, or water-indicator staining. Run the DeviceGPT assessment for everything measurable in software, and expect a buyer to look at the chassis themselves for the rest.
If you want the assessment explained rather than just delivered, Ask AI sends the finished report to ChatGPT, Gemini, Claude, or Perplexity and returns a plain-English read of which findings actually matter. The full report goes to an assistant only when you tap that button.
Ask AI: once a scan finishes, Ask AI hands it to any of nine assistants — ChatGPT, Claude, Gemini, Perplexity, DeepSeek, Grok, Copilot, Replika or You.com — for an instant plain-English read—9 AI platforms. “Cool the phone down,” “which mic permissions should I revoke?”, “what should I uninstall first?”—real advice, not raw data. Each tab generates a context-aware prompt so the AI understands your specific scan results. The report is shared only when you tap Ask AI; scan scores and phone model are uploaded to the leaderboard separately. DeviceGPT Premium removes ads and supports ongoing development.
Speed and signal: download and upload, ping and jitter, and practical reachability checks—including situations like captive portals. A built-in wifi speed test alongside your diagnostics.
Widgets: glanceable health stats on supported devices; open straight into the health experience. A home screen widget shows health score, battery and temperature at a glance.
DeviceGPT goes deeper than most phone health check apps:
If you are comparing phone health check or device health check apps, a few practical checks matter more than marketing claims:
DeviceGPT is built around that bar: one Android diagnostics scan with battery checks, phone hardware test, a spyware-signal check, and Ask AI—mostly offline, no root.
In Bangladesh the first question before buying a used or boxed phone is not the battery. It is whether the handset is official: registered with BTRC’s NEIR database, so it keeps working on local networks. People search this in English letters far more than in Bangla (btrc imei check, imei check bd, official phone check), and the check itself is BTRC’s, not any app’s.
How the check works, with or without DeviceGPT:
*#06#. The phone shows its 15-digit IMEI (two on a dual-SIM phone).KYD <IMEI> to 16002, dial *16161#, or look the number up on neir.btrc.gov.bd.What DeviceGPT adds, on a phone in Bangladesh or with the app language set to Bangla: an Is this phone official? card on the Health and Device Info screens. You type the IMEI (digits typed on a Bangla keyboard are accepted), the app tidies spaces and dashes and runs the check-digit test so a typing mistake is caught before you send the SMS, then it opens the SMS app, the dialer or the NEIR site with the number already filled in. You press send or call.
What it does not do, on purpose: it never reads the IMEI from the phone (Android does not allow an ordinary app to), it never stores or uploads the number, and it never says a phone is official. A number that passes the check-digit test is only well-formed. BTRC answers the real question.
In Bangla, the question people type is ফোন অফিসিয়াল কিনা or অফিসিয়াল ফোন চেক. The card is in Bangla when the app is.
DeviceGPT is built and maintained by Teamz Lab, a small UK software team. The same team ships No Trace Chat (disappearing-message chat), Phosphor, Top3Picks, Toss, and Rocket Landing: Moon Lander — plus Teamz Lab Tools, a free browser tool hub. Shipped work is on our portfolio; the people behind it are on the team page.
If a feature you need is missing, the changelog above is the honest record of what has actually shipped.
We also build under contract. If you need a diagnostics, monitoring, or on-device AI feature in your own app, we take client work through our Upwork agency profile — milestone escrow, so money moves only when you approve the deliverable. Adding AI to an existing app and building an app from scratch are the two usual starting points.
Bottom line: If you want a phone health check app that ties battery, thermals, power, privacy, diagnostics, and network into one readable flow—with plain-English AI explanations when you turn them on—install DeviceGPT and run your first scan in under a minute.
We collect minimal data (e.g. anonymized usage and crash reports to improve the app). No personal data is sold. Most features work offline. Scan scores and your phone model are uploaded to the global leaderboard; the full scan report goes to an AI assistant only when you tap Ask AI. For details, see our Privacy Policy.
The app requests only the permissions needed for core features (e.g. battery, storage, network, and sensors for health and privacy checks). You stay in control.
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