QR Guard vs Water Eject
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QR Guard
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QR Guard is a simple QR and barcode scanner that helps you preview contents before opening links. Version 1.1.0 introduces a refreshed interface with a brighter, friendlier look. The scan, history, and settings screens are easier to move between, with playful character icons that make everyday checking feel lighter while keeping the app calm and practical. ▼ Key Features ・Scan QR codes and barcodes ・Scan QR codes from images ・Preview URLs and text before opening ・Show the destination domain for links ・Notice link formats that deserve extra attention, such as shortened URLs ・Save and delete scan history on your device ・Switch the app language from Settings ▼ Privacy-Focused ・Camera data is processed on-device only, never stored or transmitted ・Scanned contents are not sent to external servers ・History stays on your device and can be deleted anytime ▼ Review Before Opening QR codes are convenient, but sometimes you want to see what they contain before visiting a link. QR Guard shows the scanned URL, text, or barcode information on a confirmation screen first. You decide whether to open the link after reviewing the contents. ▼ How to Use 1. Scan a QR code or barcode with the camera 2. Scan a QR code from an image when needed 3. Review the contents before opening 4. Check previous scans in the History tab ▼ Perfect For ・Users who want to review QR codes before opening ・People who want to check unknown links or shortened URLs carefully ・Anyone who also wants basic barcode scanning ・Users who prefer a friendly, easy-to-read scanner ・People who want scan history to stay on their device ※This app does not guarantee the safety of linked destinations. Please use your own judgment. ※Camera permission required. Used only for QR and barcode scanning.
Water Eject
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Dropped your phone in water, got caught in the rain, or does your speaker just sound muffled? Water Eject plays specially shaped low-frequency tones that vibrate the speaker membrane and push water droplets out of the grille — the same trick smartwatches use after swimming. WATER EJECT • One-tap automatic sequence (about a minute): pulsed bursts and sweeps tuned to the speaker's resonance • Works on the bottom loudspeaker and on the earpiece at the top of the phone • Synced vibration helps shake droplets loose DEEP CLEAN • A physically different signal that agitates instead of pushes — wobbled bursts, chirps and impulse knocks shake out dust and debris • Clean the phone speaker, the earpiece, or your headphones • Interactive step-by-step guide, cleaning history and optional reminders every two weeks MANUAL MODE • Pick the exact tone and the output — loudspeaker, earpiece or headphones • Live visual feedback synced to the sound SAFE BY DESIGN • All tones stay in a low, hearing-safe range • A clear warning before anything plays through headphones PRIVATE • No account, no ads, no tracking — everything stays on your device If your speaker sounds muffled after getting wet: run Water Eject, let the phone dry, and repeat if needed.
Screenshots
Verdict
QR Guard and Water Eject are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | QR Guard | Water Eject |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 28 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | NINJA SYSTEM | Pixelated Development |
In-app purchases
QR Guard
No in-app purchases
Water Eject
No in-app purchases









