Comparison

Document Validator vs Shield222

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

Head to head
About

Document Validator

Quickly verify the authenticity of documents containing QR codes and accompanying text. Scan the code to receive instant validation results for certificates, IDs, and more, even offline. Print a secure record of your validation.

Highlights
  • Instant QR code scanning
  • Offline validation capability
  • Secure, tamper-proof verification
  • Privacy-focused, no server tracking
  • Printable validation records
  • Supports various document types
Read full description

The main purpose of this App is to help quickly validate the authenticity of documents. You can use it with any document containing the following: - a QR Code (a square barcode), and - text or URL, instructing use of this App to validate. Simply scan the document code with this App and get instant validation result. Documents could be certificates, transcripts, IDs, pay stubs, account statements, permits etc. You can use the App with both the original document, photocopy or a soft copy. Features: Instant: Validate in seconds! No need to figure out how to validate documents issued by an organization, contact them or sign-up for an account. You just need this App. Secure: The QR Code is digitally signed and tamper-proof. Any modification, invalidates the entire code. No network connectivity required for primary information: Since all the primary information is securely encoded within the code, no network connectivity is required to validate. Code Attachments will require connectivity but the security envelope is always maintained. Privacy: The verification of the code is done entirely within the App - no outside servers track details of documents being validated. Print Record: You can AirPrint the validation record and file it with rest of the paper work for record keeping. To preserve the integrity of the validation record, the printout PDF contains the validation code - along with the verified details of the document.

About

Shield222

This app works with a special device to measure and monitor 222nm Far UV-C germicidal devices. It helps you track UV readings remotely, understand disinfection effectiveness, and learn about UV dose limits for a cleaner, healthier environment.

Highlights
  • Measure and monitor UV-C germicidal devices
  • Track UV readings remotely
  • Understand UV dose threshold limits
  • User-friendly interface
  • Compatible with MeasureShield222 device
Features
Read full description

Introducing our revolutionary mobile app paired with the MeasureShield222 device – your ultimate solution for a cleaner and healthier environment! Say hello to smart disinfection with the Shield222 mobile app. With the power of the MeasureShield222, you can effortlessly measure and keep an eye on 222nm Far UV-C germicidal devices, all from the palm of your hand. Ever wondered if your UV device is working as effectively as it should? Our app takes away the guesswork. Get ready to track UV readings from anywhere, no matter the distance. Whether you’re at home, work, or on-the-go, you’re in control of your space’s cleanliness. But we’re not just about numbers. We’re about understanding. Our app provides you with clear and friendly information about UV dose threshold limits. No need to be a science guru – we break it down for you, making sure you’re using your UV device safely and efficiently. Your health and peace of mind matter to us. That’s why we’ve made our app user-friendly, ensuring that everyone can enjoy the benefits of a sanitized space without the hassle. It’s time to embrace the future of disinfection with confidence. Try our app today and step into a cleaner, safer world with the MeasureShield222 by your side.

Screenshots

Document Validator4 screens
Shield2224 screens

Verdict

The call

The clearest difference is review sentiment: Shield222 at 100% against Document Validator's 0%. Shield222 also leads on update cadence (fortnightly vs every 4 months). On price, ads, in-app purchases and monetization model 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

Document Validator ships an update every 4 months, Shield222 fortnightly. The most recent releases landed on October 2, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 8 level
Document Validator versus Shield222: the parameters behind the verdict, then further details
ParameterDocument ValidatorShield222
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size10 MB28 MB
Age rating4+4+
DeveloperQryptal Pte LtdEden Park Illumination Inc

Customer experience

Document Validator

Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

Shield222

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Document Validator

No in-app purchases

None

Shield222

No in-app purchases

Questions

Is Document Validator free?
Document Validator is free to download, with no in-app purchases.
Is Shield222 free?
Shield222 is free to download, with no in-app purchases.
Do Document Validator or Shield222 have ads?
Neither Document Validator nor Shield222 shows ads.
Which is updated more often, Document Validator or Shield222?
Document Validator ships an update every 4 months, and Shield222 fortnightly. Most recently, Document Validator was updated on October 2, 2026 and Shield222 on September 24, 2026.

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