Comparison

Image Saliency vs iDiagnostic

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

Head to head
About

Image Saliency

Features
Read full description

Detect quantify and visualize the key part of an image or where in the image people are likely to look. ※Image saliency(Objectness Based)

About

iDiagnostic

This tool helps you quickly check the functionality of your iPhone or iPad's hardware components. It tests the display, touch screen, cameras, speakers, and microphone, ensuring everything is working as expected. Designed for privacy, all tests are performed on-device with no data collection.

Highlights
  • Display color and dead pixel test
  • Configurable touch screen grid test
  • Camera detection and individual testing
  • Speaker and earpiece audio output test
  • Microphone recording and playback test
  • On-device processing, no data collection
Features
Read full description

iDiagnostic is a fast, easy-to-use hardware diagnostic tool for iPhone and iPad. In just a few taps, verify that every key hardware component on your device is working correctly: DISPLAY - RGB color test cycles through Red, Green, and Blue full-screen patterns to spot dead pixels and color shifts. TOUCH SCREEN - Configurable grid (4x3 to 20x12) covers the entire screen so you can confirm every region responds correctly. - Real-time progress counter — tap to fill cells, get instant pass/fail when complete. CAMERAS - Detects every physical camera on your device — wide, ultra-wide, telephoto, TrueDepth, LiDAR. - Test each one individually with live preview and capture. LOUD SPEAKER - Plays a recognizable melody (Twinkle Twinkle Little Star) through the bottom speaker so you can verify audio output and quality. INTERNAL SPEAKER (EARPIECE) - Same melody routed through the top earpiece — hold the phone to your ear to confirm. MICROPHONE - Record your voice with a live audio level meter, then play it back to verify recording and playback both work. PRIVACY FIRST iDiagnostic runs entirely on your device. No data is ever collected, transmitted, stored, or shared. The app makes zero network requests. Your camera, microphone, and test results stay 100% on-device. LANGUAGES Available in English and Vietnamese — automatically follows your device's system language setting. Perfect for: - Anyone buying a used iPhone — verify hardware before paying - Phone repair shops checking refurbished devices - Developers testing app permissions and AVFoundation behavior - Tech enthusiasts curious about which cameras their phone has No ads. No tracking. No accounts. Just a clean diagnostic tool that does one thing well.

Screenshots

Image Saliency1 screens
iDiagnostic3 screens

Verdict

The call

The clearest difference is ads: iDiagnostic at none against Image Saliency's shown. iDiagnostic also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Image Saliency ships an update fortnightly, iDiagnostic weekly. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Image Saliency versus iDiagnostic: the parameters behind the verdict, then further details
ParameterImage SaliencyiDiagnostic
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyFortnightlyWeekly — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.7.217.0 — better
Further details — not scored
Size38 MB9 MB
Age rating4+4+
DeveloperHideaki UchikoshiGiang Do

In-app purchases

None

Image Saliency

No in-app purchases

None

iDiagnostic

No in-app purchases

Questions

Is Image Saliency free?
Image Saliency is free to download, with no in-app purchases.
Is iDiagnostic free?
iDiagnostic is free to download, with no in-app purchases.
Do Image Saliency or iDiagnostic have ads?
Image Saliency shows ads; iDiagnostic does not.
Which is updated more often, Image Saliency or iDiagnostic?
Image Saliency ships an update fortnightly, and iDiagnostic weekly. Most recently, Image Saliency was updated on October 17, 2026 and iDiagnostic on October 8, 2026.

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