DR vs Lens Smudge Detection
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
DR
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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/
Lens Smudge Detection
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DR ships an update every 6 weeks, Lens Smudge Detection weekly. Both last shipped on October 25, 2026.
| Parameter | DR | Lens Smudge Detection |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Weekly โ better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 18.2 โ better | 26.5 |
| Further details โ not scored | ||
| Size | 69 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | DR-Online Sp. z o.o. | Hideaki Uchikoshi |
In-app purchases
DR
No in-app purchases
Lens Smudge Detection
No in-app purchases
Questions
Is DR free?
Is Lens Smudge Detection free?
Do DR or Lens Smudge Detection have ads?
Which is updated more often, DR or Lens Smudge Detection?
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