Device Tester: Check & Monitor
by Musa Tenekeci
- Developer Tools
- Free
- Zombie
- Rating
- 5.0
- 4 ratings · Brazil storefront
- Last update
- Feb 12, 2025
- Version 1.8.3
- Size
- 6 MB
- Category
- Developer Tools
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
Full Device Diagnostics – Your Phone's Health at Your Fingertips!
Tired of guessing if your phone is working properly? With our app, you can instantly test your device’s hardware and ensure it’s in top shape. From the camera to the microphone, GPS, and sensors – check it all in seconds!
Key Features:
Full Hardware Scan: Test cameras, speakers, microphone, flashlight, and more.
System Reports: Get detailed insights into your device's performance.
Quick One-Tap Testing: A seamless way to ensure everything is running smoothly.
Battery & RAM Info: Monitor your device’s key resources in real-time.
Easy to Use: Simple and intuitive interface – no tech skills required!
Why Choose Us?
Fast, accurate, and reliable.
Regular updates to add more hardware tests.
Designed to optimize device longevity and performance.
Perfect for:
Checking your phone after repair.
Diagnosing potential issues before they worsen.
Ensuring all features work before buying or selling a device.
Peace of Mind is Just One Tap Away!
Download now and keep your phone healthy.
What’s new
Release notes for the latest version, as written by the developer.
Test your phone’s hardware instantly! Diagnose cameras, microphone, and sensors with one tap. Keep your device running at its best.
Rank history
Daily position in the Lebanon charts. #1 is at the top.
- Best rank
- #21
- Current rank
- #21
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
75/100
Not flagged as small & simple
- Developer size10% · 25
Developer: 4 apps on the charts
- Audience size100% · 20
Ratings: 4
- App size100% · 10
Size: 6 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof100% · 30
Best rank #4, 71 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.8.3LatestReleased Feb 12, 2025