
Create iOS and Android apps with React and Ionic

OriginStamp
ScoreDetect
Woleet
Stampery
Bitstamped
Certificado
Proof of existence
Timestamp any document on Ethereum and get a certificate anyone can verify. The file is hashed in your browser and never uploaded — only the SHA-256 hash is recorded. No subscription and no crypto wallet.

Website, pricing, platforms and company facts side by side.
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| Website | reactionic.github.io | blockchainsign.io |
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In their own words, as submitted to SaaSHub.


No description of React-Ionic yet.
BlockchainSign is a blockchain timestamping service for people holding documents they cannot hand over. Conventional options all require custody: a copyright office wants a deposit copy, a notary wants to see the paper, an e-signature platform wants the file on its servers. BlockchainSign never...
What each product offers, as listed by its team.


Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.


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