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Best Validator Apps

247+ iOS apps curated and reviewed

3.7 avg rating
19 free apps
Updated September 2026

Looking for free validator apps? 19 of our 247+ tracked titles are free to download โ€” no subscription, no trial. The rest are premium picks worth paying for.

Compare top Validator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Google AuthenticatorGoogle AuthenticatorFree4.9โ˜… (1.2M)NoNoSep 2026
2IBAN ValidatorIBAN ValidatorFreeโ€”YesNoMay 2026
3Document ValidatorDocument ValidatorFreeโ€”NoNoMay 2026
4GoPlayWin ValidatorGoPlayWin ValidatorFreeโ€”NoNoJul 2026
5GeoGuard Location ValidatorGeoGuard Location ValidatorFree2.8โ˜… (2.5K)NoNoSep 2026
6Em@il ValidatorEm@il ValidatorFreeโ€”NoNoSep 2026
7Phone ValidatorPhone ValidatorFreeโ€”NoYesJul 2026
8PDF Signature ValidatorPDF Signature ValidatorFreeโ€”โ€”NoAug 2026

Top Picks for Validator

Google Authenticator#1

Google Authenticator by Google

Editor's Choice
๐Ÿ”ง Utilities
4.9๐Ÿ˜ž(1.2M ratings)
Free
#5in Utilities
Google Authenticator screenshot 1
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Enhance your online security with a second verification step for your accounts. Generate codes directly on your phone, even offline, to protect against unauthorized access. Sync codes across devices for easy access and manage multiple accounts securely.

What We Love

  • ๐Ÿ‘ User-friendly
  • ๐Ÿ”’ Secure authentication
  • ๐Ÿš€ Simple and fast
  • ๐Ÿ”’ Reliable security
  • ๐Ÿ‘ Easy to use

Room to Improve

  • ๐Ÿ› Randomly deleted all codes
  • ๐Ÿ› Unreliable, lost access to accounts
  • ๐Ÿ› Timing issues, codes didn't work
  • ๐Ÿ› Accounts duplicated then deleted
  • ๐Ÿ› Wiped all accounts after update
IBAN Validator#2

IBAN Validator by Resul Aybar

Strong Contender
๐Ÿ’ฐ Finance
0.0(0 ratings)
FreeAds
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Easily verify the accuracy of International Bank Account Numbers (IBANs) from 89 countries. This tool can also identify supported bank names for specific IBANs in many regions, aiding in financial transaction checks.

Document Validator#3

Document Validator by Qryptal Pte Ltd

Worth Considering
๐Ÿ’ผ Business
0.0(0 ratings)
Free
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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.

More Validator apps to explore

FAQ about Validator

What are the best validator apps for iPhone?
Google Authenticator tops our validator apps ranking as of September 2026, with a 4.9-star average from 1.2M App Store ratings, and it's free to download.
Yes โ€” 19 of the top validator apps we rank are free to download, including Google Authenticator and IBAN Validator.
Google Authenticator has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ validator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Google Authenticator adds an extra layer of security to your online accounts by generating a second verification code needed to sign in, in addition to your password. This code is generated on your phone.
You can set up your Authenticator accounts automatically by scanning a QR code provided by the service you wish to secure. This is a quick and easy process that ensures correct setup.

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