Comparison

Test & Check for iPhone vs iDiagnosis

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

Head to head
About

Test & Check for iPhone

Verify the functionality of your iPhone or iPad with comprehensive hardware tests. Check screen, sensors, multimedia, and connectivity to ensure optimal performance. Also provides detailed device specifications and system status monitoring.

Highlights
  • Comprehensive hardware testing
  • Screen functionality checks
  • Sensor verification
  • Multimedia component tests
  • Connectivity status
  • Device information and system monitoring
Read full description

A must-have buying checklist when purchasing an iPhone or iPad! Easily test and verify key functions of your iOS device to ensure everything is working properly. This app helps you perform a comprehensive hardware test on your iPhone or iPad. Additionally, you can check detailed device specifications and monitor system status, including disk usage, CPU usage, memory (RAM) usage, and battery level. Features: Screen - Brightness test - Color test - Touch screen test - Multi-touch test - Pinch test - 3D Touch test Sensors - Accelerometer test - Shake test - Compass test - Proximity test - Touch ID/Face ID test Parts - GPS test - Vibrate test - Flashlight test Multimedia - Speaker test - Microphone test - Camera test - Video test Connectivity - Wi-Fi test - Phone call test Other - Device information check - Other important checklist

About

iDiagnosis

Diagnose hardware components and sensors on your iPhone or iPad. Get detailed reports on tests, including device configuration and IMEI, to verify phone authenticity and functionality. Ideal for checking second-hand devices or ensuring your current phone works correctly.

Highlights
  • Diagnose mobile components and sensors
  • Detailed test reports
  • Display feature and configuration details
  • Check device IMEI
  • Test screen, sound, motion, connectivity, sensors, hardware, and camera
Features
Read full description

iDiagnosis app allows you to diagnose mobile components, hardware & sensors of your iPhone/iPad and gives a detailed report of each test. It also displays feature and configuration details of the devices including IMEI that helps ensure that you’re not buying a stolen phone. iDiagnosis helps in testing your phone and ensures that every feature of your phone works. This is a very simple and easy to use application. So, if you are planning to buy a second-hand phone or want to check if your existing mobile works properly, then this is the right app for you. List of features that can be tested on iPhone/iPad: • Screen test: Touch Screen, Multi-touch & 3D touch • Sound test: Speakers, Headphone, & Microphone • Motion: Gyroscope, Compass & Accelerometer  • Connectivity test: Wi-Fi, Bluetooth, & GPS • Sensor: Light Sensor, Proximity Sensor, Fingerprint Sensor, & Face ID • Hardware: Charger, Vibration, Volume Up/Down, Power button • Camera test: LED Flash, Rear Camera, & Front Camera Test the mobile features and get a detailed report along with actual device information. Write to us at digital@vgroupinc.com for any queries. Enjoy this FREE App!

Screenshots

Test & Check for iPhone4 screens
iDiagnosis4 screens

Verdict

The call

The clearest difference is review sentiment: Test & Check for iPhone at 75% against iDiagnosis's 25%. Test & Check for iPhone also leads on rating (3.9 vs 3.4) and iOS requirement (9.0 vs 15.0). iDiagnosis's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence 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. Test & Check for iPhone sells 1 one-off in-app purchase. iDiagnosis asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Test & Check for iPhone holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 42 and 18 respectively. Written reviews point the same way: 75% of Test & Check for iPhone's written reviews are positive against 25% of iDiagnosis's.

UpkeepUpdate frequency

Test & Check for iPhone ships an update every 3 months, iDiagnosis every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Test & Check for iPhone versus iDiagnosis: the parameters behind the verdict, then further details
ParameterTest & Check for iPhoneiDiagnosis
PriceFreeFree
Rating3.9 (42 ratings) — better3.4 (18 ratings)
Positive reviews74.5% of reviews — better25.0% of reviews
Number of ratings42 — better18
Update frequencyEvery 3 months — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size5 MB13 MB
Age rating4+4+
DeveloperPrasomsak KhunmuenV Group Inc

Customer experience

Test & Check for iPhone

All ratings36 ratings
Positive69.4%
Neutral5.6%
Negative25.0%
Written reviews51 reviews
Positive74.5%
Neutral5.9%
Negative19.6%

iDiagnosis

All ratings18 ratings
Positive61.1%
Neutral11.1%
Negative27.8%
Written reviews8 reviews
Positive25.0%
Neutral12.5%
Negative62.5%

Bugs and requests

Test & Check for iPhone

Reported bugs

3 issues
  • App caused Wifi issues on iPhone 4s
  • Pinch test didn't work on iPhone 6s
  • Pinch and shake tests did not work for some users

Requested features

9 requests
  • Add automated diagnostic tests
  • Include CPU and RAM testing
  • Add battery test
  • Add Touch ID test
  • Add 3D Touch test
Show 4 more
  • Add more detailed help files
  • Improve screen and button testing
  • Add a reset button for tests
  • More specific/thorough tests for certain areas

iDiagnosis

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Test & Check for iPhone

One-time1
  • Remove Ads$0.99
None

iDiagnosis

No in-app purchases

Questions

Is Test & Check for iPhone free?
Test & Check for iPhone is free to download, with in-app purchases available.
Is iDiagnosis free?
iDiagnosis is free to download, with no in-app purchases.
Which has better reviews, Test & Check for iPhone or iDiagnosis?
Test & Check for iPhone is rated higher. Test & Check for iPhone averages 3.9 out of 5 from 42 ratings, while iDiagnosis averages 3.4 from 18 ratings.
Do Test & Check for iPhone or iDiagnosis have ads?
Test & Check for iPhone shows ads; iDiagnosis does not.
Which is updated more often, Test & Check for iPhone or iDiagnosis?
Test & Check for iPhone ships an update every 3 months, and iDiagnosis every 5 months. Most recently, Test & Check for iPhone was updated on November 1, 2026 and iDiagnosis on November 3, 2026.

Other comparisons