Comparison

QR Thing vs Deadlock

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

Head to head
About

QR Thing

Features
Read full description

This application lets you scan and create QR codes, without spying on you or showing you ads. When creating QR Codes, multiple design aspects can be changed like pixel shape, thickness/scale and foreground and background colors. You can also add a custom logo to your QR code. The QR code can then be exported/shared as PNG or SVG without additional cost, registration or anything else being required unexpectedly. It's the perfect app if (and I wrote it because) other apps disappoint with lock-in, spying, ads or outright scams (like pretending to create a code containing your URL, but it points to their domain so they can extort you later on).

About

Deadlock

This app provides a comprehensive suite of tools to enhance your digital security. It scans for data breaches, checks password strength, verifies QR codes and URLs, and analyzes Wi-Fi network security. Receive alerts for new breaches and track your overall security posture.

Highlights
  • Email breach scanner
  • Password strength checker
  • QR code and URL safety verification
  • Wi-Fi network security analysis
  • Automatic breach monitoring
  • Security score tracking
Features
Read full description

Deadlock is your all-in-one digital security toolkit. Scan your email for data breaches, check password strength, verify QR codes and URLs before opening them, and analyze your Wi-Fi network security — all in one app. - Email Scanner Enter your email address and instantly find out if it appears in known data breaches. See which companies were compromised, what data was exposed, and get step-by-step remediation guides to secure your accounts. - Password Checker Test any password's strength with real-time crack time estimates. Check if your passwords have been found in breach databases using the Have I Been Pwned API. Generate strong, random passwords with one tap. - QR Code Scanner Scan any QR code with your camera and Deadlock will check the destination URL against Google Safe Browsing before you open it. Safe links show green, dangerous ones show red — so you know before you click. - URL Safety Checker Paste any link and check it against threat databases. Deadlock identifies phishing sites, malware distribution pages, and social engineering attacks before they can harm you. - Network Scanner Analyze your current Wi-Fi connection for security issues. Check encryption type, identify open networks, and get recommendations to improve your network security. - Auto-Monitor Add your email addresses and receive background alerts whenever a new breach is detected. Stay protected without even opening the app. Security Score Track your overall security posture with a score based on your scanning activity, password hygiene, device security settings, and app usage. All features are completely free. No subscriptions, no paywalls, no ads. Your data never leaves your device.

Screenshots

QR Thing3 screens
Deadlock4 screens

Verdict

The call

QR Thing and Deadlock are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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

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

Both ship on a similar rhythm, roughly every 8 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
QR Thing versus Deadlock: the parameters behind the verdict, then further details
ParameterQR ThingDeadlock
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 8 daysEvery 8 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.617 — better
Further details — not scored
Size4 MB9 MB
Age rating4+9+
DeveloperLukas FullingTolga MERIC

In-app purchases

None

QR Thing

No in-app purchases

None

Deadlock

No in-app purchases

Questions

Is QR Thing free?
QR Thing is free to download, with no in-app purchases.
Is Deadlock free?
Deadlock is free to download, with no in-app purchases.
Do QR Thing or Deadlock have ads?
Neither QR Thing nor Deadlock shows ads.
Which is updated more often, QR Thing or Deadlock?
QR Thing ships an update every 8 days, and Deadlock every 8 days. Most recently, QR Thing was updated on November 9, 2026 and Deadlock on October 31, 2026.

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