Comparison

ZMAX vs Phone Diagnostics Expert

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ZMAX

Features
Read full description

ZMAX主要是针对本公司生产的ZMAX型号矩阵进行控制

About

Phone Diagnostics Expert

This tool offers a comprehensive diagnostic for your device's hardware and functions. It provides both quick, automatic checks and detailed manual tests for individual components, generating complete reports for troubleshooting or verification.

Highlights
  • One-click automatic hardware detection
  • Manual verification of individual components
  • Generation of detailed test result reports
  • Tests for sensors, connectivity, and hardware
  • Camera, screen, and system function checks
Read full description

Phone Diagnostics Expert - Professional Device Comprehensive Diagnostic Tool Key Features • Quick Test: One-click automatic detection of all core functions • Professional Test: Manual verification of individual device components • Detailed Reports: Generate complete test result reports Test Items (25 Total) 【Sensors】(7 items) • Compass: Magnetometer accuracy detection • Vibration: Vibration motor function test • Gravity Sensor: Accelerometer and gyroscope detection • Proximity Sensor: Proximity sensor function detection • Ambient Light Sensor: Environmental light sensor detection • Touch Function: Touchscreen response detection 【Connectivity】(2 items) • WiFi: Wireless network connection detection • Bluetooth: Bluetooth functionality detection 【Hardware】(6 items) • Flashlight: LED flash function detection • Microphone: Audio input function detection • Speaker: Audio output function detection • Earpiece: Call audio output detection • Button Function: Hardware button function detection • Volume Control: Volume adjustment function detection 【Camera】(2 items) • Front Camera: Selfie camera function detection • Rear Camera: Main camera function detection 【Screen Display】(2 items) • Screen Display: Display effect detection • Screen Brightness: Brightness adjustment function detection 【System Functions】(6 items) • Network Lock: Network connection status detection • Face ID: Biometric authentication detection • Storage Space: Device storage detection • Charging Function: Charging system detection • Call Function: Phone call function detection Use Cases • Comprehensive testing before purchasing used devices • Device troubleshooting and issue identification • Function verification after repairs • Regular device health checks Key Advantages • Clean interface, easy operation • Accurate and reliable test results • Support for generating test reports

Screenshots

ZMAX3 screens
Phone Diagnostics Expert4 screens

Verdict

The call

The clearest difference is in-app purchases: ZMAX at none against Phone Diagnostics Expert's 1. ZMAX also leads on iOS requirement (12.0 vs 15.0). Phone Diagnostics Expert's advantage is update cadence (every 2 weeks vs every 12 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Phone Diagnostics Expert sells 1 one-off in-app purchase. ZMAX asks for nothing beyond the download.

UpkeepUpdate frequency

ZMAX ships an update every 12 months, Phone Diagnostics Expert every 2 weeks. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
ZMAX versus Phone Diagnostics Expert: the parameters behind the verdict, then further details
ParameterZMAXPhone Diagnostics Expert
PriceFreeFree
Rating—4.9 (17 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—17 — better
Update frequencyEvery 12 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size72 MB45 MB
Age rating4+4+
Developer日聪 吴君 潘

In-app purchases

None

ZMAX

No in-app purchases

1 purchases

Phone Diagnostics Expert

One-time1
  • Pro Unlock$0.99

Questions

Is ZMAX free?
ZMAX is free to download, with no in-app purchases.
Is Phone Diagnostics Expert free?
Phone Diagnostics Expert is free to download, with in-app purchases available.
Do ZMAX or Phone Diagnostics Expert have ads?
Neither ZMAX nor Phone Diagnostics Expert shows ads.
Which is updated more often, ZMAX or Phone Diagnostics Expert?
ZMAX ships an update every 12 months, and Phone Diagnostics Expert every 2 weeks. Most recently, ZMAX was updated on October 12, 2026 and Phone Diagnostics Expert on October 24, 2026.

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