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Tessio VS https://open-gpt.app/

Compare Tessio VS https://open-gpt.app/ and see what are their differences

Tessio

Hosted age and identity verification for the EU Digital Identity Wallet. Over-18 checks that keep no personal data, built on an open source .NET core.

Rating
0 reviews
Pricing
Freemium €49 / Monthly (1,000 verified checks)
Alternatives Is it good?
https://open-gpt.app/

Create ChatGPT Application in seconds

Rating
0 reviews
Alternatives Is it good?
Taverlo
Check your business domain’s public DMARC and SPF records free. Ongoing monitoring is free for one domain; $29/month covers up to five. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Base details

Website, pricing, platforms and company facts side by side.

Tessio
https://open-gpt.app/
Website tessio.eu open-gpt.app
Pricing
Freemium €49 / Monthly (1,000 verified checks) Official pricing
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Platforms
SaaS
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Company Startup from Sweden · 1 - 9 employees —
Listed in
Identity Verification Age Verification Identity Verification And Protection Security & Privacy APIs +2
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About Tessio and https://open-gpt.app/

In their own words, as submitted to SaaSHub.

Tessio
https://open-gpt.app/

Tessio is an age and identity verification API built on the EU Digital Identity Wallet. Most age assurance today means uploading an ID document or taking a selfie. That solves the regulator's problem by creating a data protection one, because you then hold identity data you have to secure,...

Read more about Tessio

No description of https://open-gpt.app/ yet.

Features and specs

What each product offers, as listed by its team.

Tessio 8 features
https://open-gpt.app/ 5 features
  • Wallet-native age checks
    Proves 18+ (or any of thirteen age thresholds) from the EU Digital Identity Wallet. The user approves the request on their own device.
  • No personal data received
    The credential we request carries age booleans only: no name, no date of birth, no document number, no photo. There is nothing to store or breach.
  • One API call
    Start a check with a single REST call, get back a link or QR code, receive the signed result on your webhook.
  • Signed webhooks
    Results delivered with an HMAC-SHA256 signature and timestamp, so you can verify authenticity and detect replays.
  • Both EU credential formats
    SD-JWT VC and ISO mdoc, the two formats the EU wallet ecosystem uses. The verifier underneath passes the OpenID Foundation conformance suite in both.
  • Sandbox included
    Integrate and test end to end today; checks complete in about two seconds against the sandbox.
  • Open source core
    The verifier library is Apache-2.0 on NuGet, so you can read exactly what the crypto does before trusting it.
  • EU hosted
    Runs entirely on EU infrastructure (Finland). Data never leaves the EU.
  • Accessible AI Chat Interface
    Provides a user-friendly web-based interface for interacting with GPT-based AI models without needing to set up API access or coding knowledge.
  • No Installation Required
    Being a web application, it can be used directly from a browser without downloading or installing any software.
  • Potentially Free or Low-Cost Access
    Many GPT wrapper sites like this offer free tiers or lower-cost access compared to official API pricing, making AI chat more accessible to casual users.
  • Quick Setup
    Users can typically start chatting almost immediately after visiting the site, with minimal account creation or configuration steps.
  • Cross-Platform Compatibility
    Since it runs in a browser, it can be accessed from various devices including desktops, tablets, and smartphones without platform-specific versions.

Possible disadvantages

  • Uncertain Reliability
    Third-party GPT wrapper websites often depend on underlying API access that can be unstable, rate-limited, or discontinued without notice, affecting consistent availability.
  • Data Privacy Concerns
    Using an unofficial third-party service to process conversations raises questions about how user data and conversation history are stored, used, or shared.
  • Limited Transparency
    It may be unclear which underlying AI model version is being used, how up-to-date it is, or what modifications have been made to the base model's behavior.
  • Potential Hidden Costs or Ads
    Free-to-use AI wrapper sites often monetize through ads, premium upsells, or data collection, which may not be clearly disclosed to users upfront.
  • Lack of Official Support
    Unlike official AI platforms, unofficial wrapper sites may lack dedicated customer support, regular updates, or accountability if issues arise.

Analysis

An editorial look at what each product does well and who it suits.

Tessio
https://open-gpt.app/

No analysis of Tessio yet.

Overall verdict

  • I don't have verified, up-to-date information about open-gpt.app, and I'm unable to browse the internet to check its current status, reputation, or legitimacy. I cannot confidently vouch for or against this specific product/service.

Why this product is good

  • I lack real-time access to verify this website's current content, reputation, or user reviews
  • Domain names and their associated services can change ownership and purpose over time
  • Without verification, I cannot confirm if this is a legitimate service, its features, or its safety
  • There are many similarly-named AI tools of varying quality and trustworthiness, making specific verification important

Recommended for

  • Before using this site, research current user reviews on trusted platforms
  • Check the site's SSL certificate, privacy policy, and terms of service
  • Look for verified information about the company or developers behind it
  • Consider well-established alternatives like ChatGPT (OpenAI), Claude (Anthropic), or Gemini (Google) if you need reliable AI assistance
  • Exercise caution with any site requesting payment or personal information without clear verification of legitimacy

Videos

Walkthroughs and reviews on video.

Tessio 3 videos + Add
https://open-gpt.app/ 0 videos + Add

Why Did Tessio Betray The Corleone's and How Did Vito Know?

More videos

  • - How did Vito Corleone know Tessio was the Traitor? Why Did Tessio Betray Michael Corleone?
  • - The Final Moments of Salvatore Tessio | The Godfather Explained

No https://open-gpt.app/ videos yet. You could help us improve this page by suggesting one.

Category popularity

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

Score bands 0–20 21–40 41–50 51–60 61–100
Tessio
https://open-gpt.app/
100% 100%
Security & Privacy
0% 0%
100% 100%
Identity Verification
0% 0%
100% 100%
Age Verification
0% 0%
100% 100%
Identity Verification And Protection
0% 0%

Questions & Answers

As answered by people managing Tessio and https://open-gpt.app/.

What makes your product unique?

Tessio's answer

Tessio verifies age from the EU Digital Identity Wallet instead of collecting documents or selfies. The credential it requests carries age booleans and nothing else: no name, no date of birth, no document number, no photo. That means there is no identity data to store, leak or audit, and it is a property of the protocol rather than a promise, so you can verify it yourself. The verifier underneath is open source and passes the OpenID Foundation conformance suite for OpenID4VP 1.0 HAIP verifiers in both EU credential formats.

Why should a person choose your product over its competitors?

Tessio's answer

Most age verification vendors solve the regulator's problem by creating a data protection one: you end up holding ID documents or biometric data. Tessio asks a narrower question and receives a narrower answer, a signed yes or no. For platforms under the UK Online Safety Act, the EU Digital Services Act or gambling licences, that removes the breach surface and most of the GDPR overhead instead of managing it. And because the verification core is open source, a technical reviewer can check the claims before ever talking to us.

How would you describe the primary audience of your product?

Tessio's answer

Compliance and product teams at age regulated platforms in the EU and UK: iGaming operators, nicotine and alcohol e-commerce, dating and social apps, and the platform providers that serve them. The integration is a REST API with webhooks, built to be wired in by one developer in an afternoon.

What's the story behind your product?

Tessio's answer

Tessio is built by a small studio in Stockholm (Triple Down AB). The starting point was a regulatory collision: age checks are becoming mandatory across Europe while the usual methods, document upload and face scanning, create exactly the data protection risk the same regulators punish. The EU Digital Identity Wallet made a third way possible for the first time: a credential that proves an age threshold and contains nothing else. We built the verifier, open sourced it, ran it through the OpenID Foundation conformance suite, and put a hosted API on top. It is early and access is invite only, and the site says so plainly.

Which are the primary technologies used for building your product?

Tessio's answer

.NET and ASP.NET Core, PostgreSQL and Valkey, a Next.js dashboard, all running on EU infrastructure. The protocol layer is OpenID4VP 1.0 with SD-JWT VC and ISO 18013-5 mdoc credentials. The verifier library, Tessio.Verifier, is Apache-2.0 on NuGet.

User comments

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Alternatives to Tessio and https://open-gpt.app/

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