Comparison

MATTR GO Hold vs API Tester REST API HTTP SOAP

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

Head to head
About

MATTR GO Hold

Securely collect, store, and present verifiable digital credentials. This tool allows for selective information sharing and supports multiple credential formats and protocols for trusted interactions.

Highlights
  • Credential collection and presentation
  • Biometric authentication
  • Selective information disclosure
  • Supports multiple credential formats
  • Multi-protocol support
  • Activity log
Features
Read full description

MATTR GO Hold is a versatile tool designed to work with the MATTR VII platform and other digital trust service providers. It enables users to securely collect, store, and present verifiable digital credentials. Built using the MATTR Pi Wallet Toolkit, this app showcases all of the capabilities offered by MATTR’s digital wallet infrastructure, providing users with a practical demonstration of how digital credentials can be managed and shared. Key Features * Credential collection and presentation: Users can collect credentials from issuers and present them to verifiers via QR codes or deeplinks. * Biometric authentication: Access the wallet using facial recognition or fingerprint for enhanced security. * Selective disclosure: Share only relevant information with verifiers, preserving privacy during interactions. * Interoperability and flexibility: The wallet supports various credential profiles, including Mobile (mDLs and any other mdocs deratives), Compact (COSE based) and Web (JSON-LD). * Multi-protocol support: The wallet supports OpenID4VCI and VP Request protocols for credential issuance and presentation. * Notifications: Enable push notifications for real-time updates, such as new credential availability or verification requests. * Custom-branded credentials: Issuers can customize the appearance of credentials with logos, colors, and watermarks for brand consistency. Functionality * Scan, tap, or click to present credentials: Quickly share credentials with a QR code or deeplink, simplifying the verification process. * High-assurance authentication: Use cryptographic methods to ensure the security and integrity of verifiable presentations. * Activity log: Keep track of all credential interactions with issuers and verifiers through a dedicated activity tab. * Trusted interactions: The app validates issuers and verifiers, displaying a verification tick for confirmed sources. MATTR GO Hold is ideal for organizations looking to explore MATTR’s credential lifecycle capabilities and see firsthand how verifiable credentials can be managed securely within a privacy-preserving environment

About

API Tester REST API HTTP SOAP

This application provides a unified environment for developers and QA engineers to test, debug, and analyze various API types including REST, GraphQL, WebSocket, SOAP, JSON RPC, and XML. It offers features like CRUD operations, authentication support, query validation, real-time interaction, and WSDL file loading for comprehensive API testing.

Highlights
  • REST API Testing (CRUD, HTTP methods)
  • GraphQL query and mutation testing
  • Real-time WebSocket interaction
  • SOAP API testing with WSDL import
  • JSON RPC and XML API testing
  • Import/export test configurations
  • Integrated logs and reports
Features
Read full description

API Tester REST API HTTP SOAP API Tester REST API HTTP SOAP is a comprehensive testing tool designed to facilitate seamless and accurate testing of multiple API types and formats. With this application, developers and QA engineers can test, debug, and analyze APIs in a unified environment. Features REST API Testing Perform CRUD operations easily through a user-friendly interface. Test endpoints with various HTTP methods (GET, POST, PUT, DELETE, etc.) Support for authentication methods such as OAuth, Basic Auth, and API keys. GraphQL Support Run queries and mutations to validate your GraphQL APIs. Test multiple GraphQL endpoints. WebSocket Testing Interact with WebSocket services in real-time to verify connections and message passing. SOAP API Testing Load WSDL files to auto-generate test configurations. Validate SOAP requests and responses. JSON RPC and XML Testing Specialized testing for JSON RPC and XML-based APIs. Support for batch requests and parameter validation. Additional Features Import and export test configurations for easy sharing. Integrated logs and reports for detailed test analysis. Environment variable support to simulate different environments. Benefits User-Friendly Designed with a clean and intuitive interface, users can easily set up and execute API tests without steep learning curves. Versatile Whether you are working with REST, GraphQL, WebSocket, SOAP, JSON RPC, or XML, the app provides a unified platform to perform various types of API tests. Time-Efficient Automate repetitive tests and save configurations, making the process significantly faster and more efficient. Collaborative Export your tests and share them with your team to ensure consistency and boost productivity. Accurate Built-in validators and real-time log tracking ensure that the APIs are rigorously tested for reliability, performance, and security. Who Should Use This App? Software Developers QA Engineers API Testers Backend Developers DevOps Engineers With API Tester REST API HTTP SOAP, test your APIs with confidence, ensuring robust and high-performing applications.

Screenshots

MATTR GO Hold4 screens
API Tester REST API HTTP SOAP4 screens

Verdict

The call

The clearest difference is review sentiment: MATTR GO Hold at 100% against API Tester REST API HTTP SOAP's 67%. API Tester REST API HTTP SOAP's advantage is update cadence (daily vs every 2 months) and iOS requirement (11.0 vs 15.6). 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

MATTR GO Hold ships an update every 2 months, API Tester REST API HTTP SOAP daily. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
MATTR GO Hold versus API Tester REST API HTTP SOAP: the parameters behind the verdict, then further details
ParameterMATTR GO HoldAPI Tester REST API HTTP SOAP
PriceFreeFree
Rating—4.7 (15 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings—15 — better
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.611.0 — better
Further details — not scored
Size57 MB31 MB
Age rating4+4+
DeveloperMATTR LimitedNEURASYNC

Customer experience

MATTR GO Hold

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

API Tester REST API HTTP SOAP

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

MATTR GO Hold

No in-app purchases

None

API Tester REST API HTTP SOAP

No in-app purchases

Questions

Is MATTR GO Hold free?
MATTR GO Hold is free to download, with no in-app purchases.
Is API Tester REST API HTTP SOAP free?
API Tester REST API HTTP SOAP is free to download, with no in-app purchases.
Do MATTR GO Hold or API Tester REST API HTTP SOAP have ads?
Neither MATTR GO Hold nor API Tester REST API HTTP SOAP shows ads.
Which is updated more often, MATTR GO Hold or API Tester REST API HTTP SOAP?
MATTR GO Hold ships an update every 2 months, and API Tester REST API HTTP SOAP daily. Most recently, MATTR GO Hold was updated on September 10, 2026 and API Tester REST API HTTP SOAP on September 13, 2026.

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