API Tester vs. Testsigma Comparison


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		Related Products MuukTest Are bugs slipping through your QA process and frustrating your customers? Catching issues early shouldn’t mean overwhelming your team with time-consuming tests. With MuukTest’s AI-driven platform, growing engineering teams reach 95% end-to-end test coverage in just 3 months, delivering quality at speed. By leveraging AI, our QA experts rapidly design, manage, and maintain comprehensive E2E tests for web, mobile, and API applications on the MuukTest platform. Within 8 weeks, we deliver full regression coverage, followed by exploratory and negative testing to uncover hidden bugs and expand test scenarios. We also proactively identify and address flaky tests and false results to ensure the reliability of your tests. Testing early and often allows you to detect bugs in the early stages of your development lifecycle, reducing the burden of technical debt down the line. 34 Ratings Visit Website CEX.IO CEX.IO is a regulated multi-functional cryptocurrency exchange. Established in 2013, it now has offices in the UK, US, Ukraine, Cyprus, and Gibraltar. With more than 3 million users across the globe, CEX.IO provides reliable services backed by cold cryptocurrency storage, financial viability, high security, and KYC/AML best practices. CEX.IO Exchange was one of the first platforms to make fiat-to-crypto transactions accessible by offering card payments and bank transfers to the clients. Currently, we provide a variety of trading tools for Bitcoin, Bitcoin Cash, Ethereum, Ripple, Stellar, Litecoin, Tron, and other crypto assets. You can trade these cryptocurrencies for USD, EUR, GBP, and RUB. We know that mobility matters, so we’ve enabled trading through a website, iOS and Android mobile apps, WebSocket, and REST API. 29 Ratings Visit Website Parasoft "Parasoft delivers an AI‑powered software testing platform that helps organizations continuously release high‑quality software. Our solutions support embedded and enterprise teams by integrating code analysis, testing, virtualization, and coverage into the delivery pipeline to improve security, reliability, and compliance while reducing cost and effort. Parasoft C/C++test provides static analysis, unit testing, code coverage, and requirements traceability for C and C++ applications. It integrates with Eclipse and Visual Studio, supports CI/CD automation, and is TÜV‑certified for safety‑ and security‑critical systems. Parasoft C/C++test CT is a scalable, compliance‑ready solution for C and C++ teams. It integrates into CI/CD workflows, supports open‑source unit testing frameworks, containers, VS Code, Bazel build systems, eliminates IDE dependencies, and is TÜV‑certified for safety‑ and security‑critical development." 152 Ratings Visit Website Checksum.ai Checksum is a continuous quality platform that autonomously generates, runs, and maintains tests so engineering teams can ship AI-generated code without trading speed for reliability. Unlike copilots that wait for prompts, Checksum works as a background agent, detecting what needs testing, generating production-ready Playwright, and healing broken tests automatically. Seventy percent of failures resolve autonomously, keeping suites green without manual effort. Built on fine-tuned data from 1.5+ million test runs, Checksum covers every layer of the SDLC: end-to-end, API, and CI testing from a single platform. Tests are delivered as standard Playwright code, submitted as a PR to your repo. No vendor lock-in. Checksum integrates natively with Cursor, Claude Code, and 100+ coding agents via /checksum slash commands, so code is tested before a human ever reviews it. AI handles generation and healing on Checksum's cloud: no LLM tokens. The result: ship faster, with confidence. 2 Ratings Visit Website Virtuoso QA Virtuoso QA is an enterprise agentic test automation platform setting the standard of proof for software releases. As AI accelerates how software is built, Virtuoso QA helps organisations release with confidence through governed, agentic automation for functional, regression and end-to-end testing across any browser-based application, from Dynamics 365, Salesforce and SAP to Guidewire and custom-built systems. Virtuoso QA turns requirements, designs, live applications or existing suites into executable journeys. Through Touchstone, its agentic layer, brings in 30+ specialised agents to do the work, grounded in your sources and standards. The Analyst turns documentation into source-cited test requirements, the Architect designs the journeys that prove them, and Autopilot builds each one. Your team reviews and approves each stage, so nothing enters the suite on trust. Tests run on a deterministic engine within existing CI/CD pipelines, and self-healing fixes are proposed as reviewable diffs, keeping test suites current without manual rework. Every release is backed by evidence of what was tested, what changed and who approved it. That is why organisations in financial services, insurance, healthcare and the public sector trust Virtuoso QA where releases carry consequences. 131 Ratings Visit Website KrakenD KrakenD is a high-performance API Gateway optimized for resource efficiency, capable of managing 70,000 requests per second on a single instance. The stateless architecture allows for straightforward, linear scalability, eliminating the need for complex coordination or database maintenance. It supports various protocols and API specifications, with features like fine-grained access controls, data transformation, and caching. Unique to KrakenD is its ability to aggregate multiple API responses into one, streamlining client-side operations. Security-wise, KrakenD aligns with OWASP standards and doesn't store data, making compliance simpler. It offers a declarative configuration and integrates with third-party logging and metrics tools. With transparent pricing and an open-source option, KrakenD is a comprehensive API Gateway solution for organizations prioritizing performance and scalability. 76 Ratings Visit Website DataImpulse DataImpulse - Ethical Provider of Residential, Mobile, and Data Center IPs DataImpulse (dataimpulse.com) is a proxy provider offering a pool of over 90 million ethically sourced residential, mobile, and data center IP addresses from 195 countries. Pricing for residential proxies starts at $1 per GB with a pay-as-you-go model; there are no subscriptions or traffic expiration dates. DataImpulse proxies are suitable for web scraping, SERP monitoring, ad verification, price tracking, and other business activities. They support HTTP/HTTPS and SOCKS5 protocols, as well as rotating and sticky sessions. DataImpulse also offers integration with Scrapy, Selenium, Puppeteer, various proxy managers, browser extensions, and custom tools. Rated 4.8 out of 5 on G2, DataImpulse provides 24/7 human support, advanced targeting options, discounted prices for bulk purchases, and custom features available upon request. 31 Ratings Visit Website Cerberus FTP Server Cerberus FTP Server provides a secure and reliable file transfer solution for the demanding IT professional in any industry. Supporting SFTP and SCP, FTP/S, and HTTP/S, Cerberus is able to authenticate against Active Directory and LDAP, run as a Windows service, has native x64 support, includes a robust set of integrity and security features and offers an easy-to-use manager for controlling user access to files and file operations. - FTP/S, SCP, SFTP, HTTPS - SAML SSO - Active Directory & LDAP - Secure SSL Encryption - Two-Factor Authentication - IP Auto-Banning and Geoblocking - HIPAA Compliant - FIPS 140-3 Validated - Advanced Reporting - Comprehensive Auditing - Web File Transfer Client - Email Notifications - Event Support & Automation - File Retention Policies -Unlimited Connections -Virtual Directories -Users & Groups -Detailed Logs -Full IPv6 Support -FTP with TLS/SSL -SOAP control API -Web Administration -SSH2 SFTP and SCP -Public Key Authentication 159 Ratings Visit Website DataHub DataHub Cloud is an event-driven AI & Data Context Platform that uses active metadata for real-time visibility across your entire data ecosystem. Unlike traditional data catalogs that provide outdated snapshots, DataHub Cloud instantly propagates changes, automatically enforces policies, and connects every data source across platforms with 100+ pre-built connectors. Built on an open source foundation with a thriving community of 13,000+ members, DataHub gives you unmatched flexibility to customize and extend without vendor lock-in. DataHub Cloud is a modern metadata platform with REST and GraphQL APIs that optimize performance for complex queries, essential for AI-ready data management and ML lifecycle support. 10 Ratings Visit Website Codemagic Codemagic macOS build machines make building hybrid applications seamless thanks to the ever-growing list of preinstalled software available. Set up your Cordova Android and iOS app builds and workflows in a single, easy-to-configure codemagic.yaml file. Ensure the health of your Android and iOS apps with automated tests on simulators, emulators and real devices, and receive immediate feedback on build results. Codemagic integrates with Apple Developer Portal for easy iOS code signing and allows you to deploy to App Store Connect and Google Play without delay. Set up your React Native app builds and workflows in a single, easy-to-configure codemagic.yaml file. Codemagic’s macOS build machines come with multiple Xcode versions, Android SDK and npm preinstalled for hassle-free Android and iOS builds. Codemagic makes it easy to automate the testing of your React Native apps on simulators, emulators and real devices. 138 Ratings Visit Website
About API Tester is a completely free mobile app available on iOS, Android, macOS, and watchOS. It is a functional API testing tool that allows users to complete compound tasks on any device. - Test any API on the go: REST, GraphQL, WebSocket, SOAP, JSON RPC, XML, HTTP, HTTPS. - GET, POST, PUT, PATCH, DELETE, etc. HTTP request methods are supported. - Perform the API calls with any kind of request data encoding and transfer type. - Import collections from Swagger, Postman, and YAML, or import requests using cURL, as well as export created requests via link or cURL. - Use a powerful GraphQL editor with full-scale experience. - WebSocket testing tool is available: handles connection and message exchange via WS or WSS. The API Tester mobile app allows you to get the job away from your workstation. Save time, work from anywhere!	About Testsigma is an AI-native quality intelligence platform that gives QA and engineering leaders the evidence to answer that question. It compares test coverage against what is actually being built and produces a release confidence score with known confidence bounds. When gaps are found, Testsigma closes the loop: AI agents generate the missing tests, run them with self-healing, diagnose failures, and file complete bug reports. For teams that need comprehensive test execution, Testsigma supports web, mobile, API, and Salesforce testing with cross-browser and cross-device execution at scale on real devices. Testsigma serves mid-market and enterprise engineering teams across financial services, insurance, healthcare, manufacturing, retail, public sector, and technology. Recognized by Gartner in the Market Guide for AI-Augmented Enterprise Application Testing Tools and by Forrester in the Autonomous Testing Platforms Landscape.
Platforms Supported Windows Not Supported Mac Supported Linux Not Supported Cloud Not Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Supported Linux Supported Cloud Supported On-Premises Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Programmers and developers who design, debug, and test APIs	Audience SDETs, QAs, and SMEs in cross-functional development teams
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Supported 24/7 Live Support Supported Online Supported
API Offers API Not Supported	API Offers API Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing Completely free All features are available for free Free Version Supported Free Trial Not Supported	Pricing Available on Request Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 5.0 / 5 ease 5.0 / 5 features 4.5 / 5 design 5.0 / 5 support 5.0 / 5 Read all reviews	Reviews/Ratings Overall 4.4 / 5 ease 4.4 / 5 features 4.4 / 5 design 4.0 / 5 support 4.4 / 5 Read all reviews
Pros & Cons from Real Users Pros API Tester is free. The best GraphQL editor I ever saw. It gives the option to run literally any type of API. Easy import options. Pleasant user experience overall. Learning how to use the app wouldn't take too long. Application is pretty simple, straightforward and works well. Validating Restful and SOAP APIs, WebSocket applications, as well as GraphQL applications has been a good experience using API Tester. All the underlying challenges that come to mind for testing backend applications are well served. What is more important - it's completely free and all features are available without any fees. This mobile app increased my productivity, and I can test APIs from anywhere on the planet using only a mobile device. Cons Not optimal for fully automated testing, but it would be unfair to demand this from a mobile solution. The only cons is the lack of a desktop version. I think it could replace my other desktop alternatives.	Pros & Cons from Real Users Pros What I liked most about Testsigma is its intuitive Drag & Drop interface, which simplifies test creation and makes it accessible for both technical and non-technical users. The powerful mobile app and REST API testing features are also standout aspects. 1. Possibility to create autotests without programming knowledge 2. It takes not a lot of time to learn how to set up your project 3. Quick response of support team to any concerns 4. Constant development of product 5. Wide variety of settings to create, execute test cases 6. Presence of API testing 7. Cross browser, cross platform testing 1) With the minimum training users can handle the application. That is a unique feature in Testsigma. 2) Test step grouping is one more unique feature that helps to reduce the time to develop new scripts. - Easy to learn and use - Allows use of custom functions - Ability to reuse elements and steps - Bundling of test cases and test plans - Scheduling runs - Automatic rerun of failed cases - API testing - JIRA Integration Can be sued with simple English Multiple OS and browser versions Very simple, even someone non-technical person can perform automation Cons While Testsigma is generally very efficient and user-friendly, there are occasional moments when the platform can feel a bit slow during peak usage times. However, these instances are rare and do not significantly impact overall productivity. 1. Sometimes presence of bugs, instability in product which can cause some inconvenience Most of the features are good, with no cons at the moment. Need to improve on: - Better communication on changes - removal of certain symbols from UI identifier names, changing test plan run settings, deprecating certain test steps, etc. cause more maintenance and upkeep. - Need detailed release notes So far it is working great.I have no issues with it
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Supported Live Online Supported In Person Not Supported
Company Information API Tester Founded: 2020 United Kingdom apitester.org	Company Information Testsigma Founded: 2019 United States testsigma.com
Alternatives JIterator Windex Inc	Alternatives Checksum.ai
WebSniffer	Virtuoso QA
Go REST	Sahi Pro Tyto Software Pvt Ltd
HttpMaster Borvid	Testim Tricentis
SoapUI SmartBear View All	ACCELQ View All
Categories API Testing Supported	Categories AI Agents for Software Testing Supported AI Testing Tools Supported API Testing Supported Automated Testing Supported Codeless Test Automation Supported Continuous Testing Supported Cross-Browser Testing Supported Functional Testing Supported Mobile App Testing Supported QA Testing Supported Regression Testing Supported Self-Healing Test Automation Supported Software Testing Supported Test Management Supported UI Testing Supported Visual Testing Supported
API Testing Features Functional Testing Supported Fuzz Testing Supported Load Testing Supported Penetration Testing Supported Runtime and Error Detection Supported Security Testing Supported UI Testing Supported Validation Testing Supported	API Testing Features Functional Testing Supported Fuzz Testing Not Supported Load Testing Not Supported Penetration Testing Not Supported Runtime and Error Detection Supported Security Testing Not Supported UI Testing Supported Validation Testing Supported Show More Features Automated Testing Features Hierarchical View Supported Move & Copy Supported Parameterized Testing Supported Requirements-Based Testing Supported Security Testing Not Supported Supports Parallel Execution Supported Test Script Reviews Supported Unicode Compliance Supported Functional Testing Features Automated Testing Supported Interface Testing Supported Regression Testing Supported Reporting / Analytics Supported Sanity Testing Supported Smoke Testing Supported System Testing Supported Unit Testing Supported Mobile App Testing Features Functional Testing Supported Installation Testing Not Supported Interruption Testing Not Supported Memory Testing Not Supported Performance Testing Not Supported Usability Testing Supported Software Testing Features Automated Testing Supported Black-Box Testing Supported Dynamic Testing Not Supported Issue Tracking Not Supported Manual Testing Supported Quality Assurance Planning Supported Reporting / Analytics Supported Static Testing Not Supported Test Case Management Supported Variable Testing Methods Not Supported White-Box Testing Not Supported Test Management Features Automation Integration Supported Collaboration Tools Supported Pass/Fail Results Tabulation Supported Reporting / Analytics Supported Requirements Management Supported Test Scheduling Supported Test Tracking Supported Time/Budget Tracking Not Supported
Integrations Bugzilla Not Supported CircleCI Not Supported CodeShip Not Supported Freshrelease Not Supported GitHub Not Supported Jenkins Not Supported Jira Not Supported LT Browser Not Supported MantisBT Not Supported Microsoft Teams Not Supported Sauce Labs Not Supported Slack Not Supported TestMu AI Not Supported Trello Not Supported YouTrack Not Supported Show More Integrations	Integrations Bugzilla Supported CircleCI Supported CodeShip Supported Freshrelease Supported GitHub Supported Jenkins Supported Jira Supported LT Browser Supported MantisBT Supported Microsoft Teams Supported Sauce Labs Supported Slack Supported TestMu AI Supported Trello Supported YouTrack Supported Show More Integrations View All 15 Integrations
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