Comparison

BioSeal Reader vs Sealva

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

Head to head
About

BioSeal Reader

Features
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BioSeal Reader reads and verifies Visible Digital Seals (VDS) and 2D-Doc codes. Scan the code on an item (a document, a badge, a product…): the app checks its signature, issuer and revocation, then shows the certified data. The app reads 2D codes (DataMatrix, QR Code and PDF417) compliant with ISO 22376, the Otentik trust network extensions and the BioSeal extensions. It also reads 2D-Doc, the France Titres (ANTS) standard. Any change to the data breaks the electronic signature: BioSeal Reader detects it, confirms the authenticity of the data and the legitimacy of the issuer, and shows the information in one of the languages defined by the use case. Protection against quishing (QR code phishing): a tampered QR code can lead to a fake site that steals passwords or card details. BioSeal Reader also reads ordinary QR codes, but it first checks whether the code is a signed seal. If it is not, the app warns that the content is unverified and shows the full link before opening it, so you decide with full knowledge. For a seal bound to a web address, it also checks that the seal was issued for that address. Holder verification: when the seal carries a biometric reference, the app compares the holder's face or fingerprints with it, after the holder's consent. The comparison runs on the phone; no biometric data is sent. Reading seals is free; biometric verification requires an id3 licence. No ads, no analytics, no tracking. Privacy policy: https://id3technologies.com/bioseal-reader-privacy/ Learn more about BioSeal: https://id3technologies.com/bioseal/

About

Sealva

Features
Read full description

Simply scan and verify visible digital seals! VDS are visual cryptographically signed data structures encoded in barcodes such as Datamatrix. Sealva supports a wide range of current digital seal profiles and is prepared for future new profiles. Digital signatures are always verified locallyβ€”no cloud, no storage of sensitive data outside the device. The data contained is clearly displayed and the signature is checked locally – securely and directly on the device. Stored seals can be retrieved and checked again at any time. The certificates required for verification are automatically updated in the background. After synchronization, verification is possible even without an Internet connection. It is possible to either receive the centrally provided certificates or load your own trusted certificate sets that can be obtained from your own infrastructure. A reliable solution for digital document verification based on visible digital seals – efficient, secure, and available at all times.

Screenshots

BioSeal Reader4 screens
Sealva4 screens

Verdict

The call

The clearest difference is iOS requirement: BioSeal Reader at 15.0 against Sealva's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· 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 3 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard1 real difference Β· 5 level
BioSeal Reader versus Sealva: the parameters behind the verdict, then further details
ParameterBioSeal ReaderSealva
PriceFreeFree
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better18.6
Further details β€” not scored
Size195 MB51 MB
Age rating4+4+
Developerid3 TechnologiesTobias Senger

In-app purchases

None

BioSeal Reader

No in-app purchases

None

Sealva

No in-app purchases

Questions

Is BioSeal Reader free?
BioSeal Reader is free to download, with no in-app purchases.
Is Sealva free?
Sealva is free to download, with no in-app purchases.
Do BioSeal Reader or Sealva have ads?
Neither BioSeal Reader nor Sealva shows ads.
Which is updated more often, BioSeal Reader or Sealva?
BioSeal Reader ships an update every 3 weeks, and Sealva every 3 weeks. Most recently, BioSeal Reader was updated on November 7, 2026 and Sealva on November 5, 2026.

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