Comparison

DR vs Lens Smudge Detection

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

Head to head
About

DR

Features
Read full description

DR-DeviceTools is a comprehensive device diagnostics and monitoring app that gives you full visibility into your device's hardware, performance, and system health โ€” all in one place. Get a complete picture of what's inside your device. Explore detailed hardware specifications, from processor and GPU to display, cameras, audio, and ports. Monitor system performance in real time โ€” track CPU load, memory usage, storage, battery status, and thermal readings to understand how your device is performing at any moment. Browse every sensor on your device with expandable technical details. Check connectivity capabilities across Wi-Fi, Bluetooth, cellular, and GPS. Review your device's security posture including encryption status. Run interactive hardware tests to verify that your touchscreen, speakers, and sensors are functioning correctly โ€” with detailed diagnostic results for each test. View supported media codecs and accessibility settings. Everything you need to understand, diagnose, and verify your device is working as expected. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Lens Smudge Detection

Features
Read full description

This app can detect images taken with dirt or foreign objects on the lens. Dirt refers to anything covering the lens, such as fingerprints or raindrops, which can cause blurring or haze in images. This feature helps you find the best frames from a set of videos or images. The Lens Smudge Detection results display a confidence score from 0.0 to 1.0. This indicates the likelihood that there was dirt or a malfunction on the lens at the time of shooting. A confidence score of 1.0 means there is a very high probability that dirt or foreign objects were on the lens at the time of shooting. Running the app requires a device with A14 Bionic chips(iPhone 12) and later.

Screenshots

DR4 screens
Lens Smudge Detection1 screens

Verdict

The call

The clearest difference is update cadence: Lens Smudge Detection at weekly against DR's every 6 weeks. DR's advantage is iOS requirement (18.2 vs 26.5). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DR ships an update every 6 weeks, Lens Smudge Detection weekly. Both last shipped on October 25, 2026.

Scorecard2 real differences ยท 4 level
DR versus Lens Smudge Detection: the parameters behind the verdict, then further details
ParameterDRLens Smudge Detection
PriceFreeFree
Update frequencyEvery 6 weeksWeekly โ€” better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS18.2 โ€” better26.5
Further details โ€” not scored
Size69 MB42 MB
Age rating4+4+
DeveloperDR-Online Sp. z o.o.Hideaki Uchikoshi

In-app purchases

None

DR

No in-app purchases

None

Lens Smudge Detection

No in-app purchases

Questions

Is DR free?
DR is free to download, with no in-app purchases.
Is Lens Smudge Detection free?
Lens Smudge Detection is free to download, with no in-app purchases.
Do DR or Lens Smudge Detection have ads?
Both DR and Lens Smudge Detection show ads.
Which is updated more often, DR or Lens Smudge Detection?
DR ships an update every 6 weeks, and Lens Smudge Detection weekly. Most recently, DR was updated on October 25, 2026 and Lens Smudge Detection on October 25, 2026.

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