Find out the true condition of your smartphone. Check real battery health and wear, verify display refresh rate, monitor overheating, and test every sensor when buying a used phone.
Click any screen below to view it full-size.
Designed so you never have to dig through complicated menus—everything important is right at your fingertips.
Check the real health, temperature, and wear level of your smartphone battery
The ultimate tool when buying a used phone—spot hidden hardware issues in seconds
Screen verification—confirm your display refresh rate and touch responsiveness
Clear overview of memory usage, storage space, and Wi-Fi / mobile signal quality
Live test of all physical sensors (compass, gyroscope, proximity sensor)
Clean, easy-to-read interface designed for everyday users
Is your phone draining battery faster than it used to, overheating, or are you buying a second-hand phone and want to make sure everything works? Standard phone settings hide the most important details from you.
BlackBox: Device Info shows you the truth about your device on one clean screen. Instantly check real battery health and temperature, verify if your screen truly runs at 120 Hz, inspect available memory, and test every physical sensor on your phone.
Forget carrying paper receipts in envelopes and paying high monthly retainers to external accountants. Vanti shows your real net cash every second, reads receipts automatically, and generates your annual tax return.
A clean, distraction-free weather app. Check the live rain radar to see the exact minute rain will hit, monitor air quality, and track daily pollen levels for allergy relief.
How much money quietly leaves your card every month for Netflix, Spotify, apps, and trials you no longer use? SubManager tracks them all and alerts you before your card gets charged.
We use essential cookies to ensure proper website operation and, with your consent, analytical cookies to improve our services. Learn more in our Cookie Policy & GDPR.
Required for core site functionality, language switching (SK/EN), form security, and storing your privacy choices.
