Comparison

qw vs Certidox

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

Head to head
About

qw

Features
Read full description

This App is a demonstrator for QR-Codes on EuroWeld certificates. You can read QR-Codes that are created by the program EuroWeld. CertChecker analyses the QR-Code and shows the parts in a readable form. Additional it checks the signature and says if it is valid or invalid. With the Certipedia-Button you can call the official Certipedia-Website to check your EuroWeld certificate.

About

Certidox

Features
Read full description

Certidox: Verify Before You Rely on It. A document can look authentic even when its content has been altered. An email can impersonate a trusted sender. A QR code can conceal a fraudulent link. Certidox lets you verify certified documents and emails, and inspect QR codes before trusting them. VERIFY CERTIFIED DOCUMENTS Scan the Certidox QR code on any certified document, whether digital or printed, original or copy. Instantly and independently: • Identify the issuer of the document. • Check its certification date. • View the certified content and compare it with the document you received. • Check its current status: active, suspended, or revoked. VERIFY CERTIFIED EMAILS Review the certified information associated with an email, including its sender and message details, to identify discrepancies or potential impersonation attempts. SHARE DIRECTLY FROM SAFARI Found a QR code while browsing in Safari? Use the iOS Share feature to send it directly to Certidox and inspect it on your iPhone or iPad. No need for a second device to scan a QR code displayed on your screen. GET REAL-TIME STATUS ALERTS What happens if a document you previously verified is suspended, revoked, or superseded? Certidox alerts you when its status changes. Issuers retain control over the status of their certified documents, even after distribution. INSPECT NON-CERTIDOX QR CODES Not every QR code is proof of authenticity. Certidox can also analyze QR codes generated by third parties. The app displays the destination URL, allowing you to inspect it before deciding whether to open the link. CONFIDENTIAL BY DESIGN Certidox does not process or store readable document content on its servers. Your information remains confidential. Verify Before You Rely on It. Download Certidox for free on your iPhone or iPad.

Screenshots

qw2 screens
Certidox4 screens

Verdict

The call

The clearest difference is update cadence: Certidox at every 6 months against qw's every 20 months. On price, ads, in-app purchases and device support 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

qw ships an update every 20 months, Certidox every 6 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard1 real difference · 5 level
qw versus Certidox: the parameters behind the verdict, then further details
ParameterqwCertidox
PriceFreeFree
Update frequencyEvery 20 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size1 MB22 MB
Age rating4+4+
DeveloperRainer HagemannToken Economics

In-app purchases

None

qw

No in-app purchases

None

Certidox

No in-app purchases

Questions

Is qw free?
qw is free to download, with no in-app purchases.
Is Certidox free?
Certidox is free to download, with no in-app purchases.
Do qw or Certidox have ads?
Neither qw nor Certidox shows ads.
Which is updated more often, qw or Certidox?
qw ships an update every 20 months, and Certidox every 6 months. Most recently, qw was updated on November 2, 2026 and Certidox on November 6, 2026.

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