Free
€0
No time limit, no trial countdown, no account.
- Device, Display, Sensors and Battery
- Full readings and guided checks in those four areas
- Theme and app language settings
Put your phone to the test.
Check your screen, sound, cameras, battery and more, and keep a report of what was found.
See what it checks- Download
- Fall 2026Free on Google Play
- Full version
- $6.99One payment, no subscription
- Your data
- Stays on your phoneNo ads, no account
Fourteen areas, one at a time or all at once.
Open a single area when you want to check one thing, or run a Full Check to walk through all fourteen in one pass. Every area combines what Android reports about your phone with checks you carry out yourself, so the result says what was actually observed.
Look, listen, touch
Guided checks where you confirm what actually happens.
- DisplayPixel colour checks and a touch grid.
- AudioSpeaker playback and a microphone recording.
- CameraLive preview and a test photo.
- VibrationA guided vibration you confirm by feel.
- Volume buttonsPress each button and see it register.
Inside the phone
What Android reports about the hardware and how it runs.
- DeviceModel, Android version and specifications.
- PerformanceCPU, graphics and memory, with short performance tests.
- BatteryCharge level, charging state and temperature.
- ThermalThermal status and battery temperature.
- StorageStorage details and an optional speed test.
Signals and sensors
Networks, radios and the sensors that react to you.
- SIM & mobile networkSIM, carrier and mobile network details.
- SensorsLive sensor readings and guided checks.
- ConnectivityWi-Fi, Bluetooth, NFC and GPS. Not a speed test.
- BiometricsBiometric support and the system unlock prompt.
What Android reports
Thermal headroom and battery temperature, read from the system.
What you check yourself
Play a tone through the speaker and confirm what you actually heard.
What you keep
A saved report with a score and what was covered. Full version.
Device, Display, Sensors and Battery are free, with no time limit and no account. The full version opens the other ten, along with Full Check, saved reports and export.
What each area can measure depends on your phone's hardware, its Android version and the permissions you grant. An area that cannot be measured is not a fault, and the report says so rather than guessing.
Free to start. One payment for the rest.
fonecheck is free to download. Four diagnostic areas stay free with no time limit and no account, so you can see whether it tells you anything useful before paying anything.
Full version
$6.99 once
A single in-app purchase. No subscription, no recurring payment.
- All 14 diagnostic areas
- Guided Full Check across every area
- Overall score and test coverage
- Saved reports and report history
- Comparison of compatible reports
- Retest a single area without losing the old report
- Export as PDF or JSON
Buying the full version does not remove the limits set by your phone's hardware, its Android version or the permissions you grant. An area that cannot be measured stays unmeasured, and the report says so.
What to check, and what it means.
Free guides for when something on your phone seems wrong. Each one takes a single symptom and walks through what to check.
ScreenHow to test an Android touchscreen for unresponsive areasA missed touch is hard to judge on its own. A simple drawing test shows whether the gap keeps appearing in the same part of the screen.
SoundAndroid microphone not working: how to narrow down the problem
CameraAndroid camera not working: what to check before a repair
TroubleshootingHow to document an intermittent problem on an Android phone
BatteryBattery health says good on Android: what does it mean?
SensorsAndroid screen goes black during calls: normal behavior or a problem?
ConnectionsAndroid phone charges from a computer but won't transfer files
Before you ask.
Still have a question? The guides go through each check in more detail. If the answer is not there, get in touch.
When can I download fonecheck?
fonecheck is planned for Google Play in fall 2026. It is not available to download yet, and an exact release date has not been announced.
Which phones will it support?
fonecheck is designed for Android phones running Android 8.0 or later. Available information and tests depend on the phone’s hardware, Android version and permissions.
What will be free?
Device, Display, Battery and Sensors are planned to be available without a time limit. The full version is a one-time in-app purchase with no subscription: €6.99 in the euro area, with regional prices in other countries.
Is Full Check completely automatic?
No. Full Check brings automatic observations and guided hands-on checks together. Some steps ask you to listen, look, touch or confirm what happened. Full Check is part of the planned paid version.
Does a passing report guarantee a fault-free phone?
No. A report describes the observations saved during that check. A score and test coverage describe different things. Unavailable or untested hardware is not automatically a fault, and even full coverage does not certify the entire phone’s condition.
Where do my reports go?
Diagnostic reports are stored locally on your phone. You choose whether to export and share them. There is no automatic report upload or cloud sync. Exporting a report does not transfer your full report history to another phone.