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RepDB
RepDB is a one-time-purchase exercise dataset for developers building fitness and workout apps โ not a subscription, not a rate-limited API. You download the data once and own it: JSON (and SQLite on the higher tier), WebP images, and full EN/DE/ES translations, with no per-request billing and no dependency on our servers staying up.
A free tier includes 250 exercises with flat-style 512ร512 images, attribution-licensed for commercial in-app use. The Starter tier ($199) adds the full catalog in classic white-background style. Standard ($399) adds transparent 1024px images, looping animations, exercise relations (similar/progressions/regressions), workout templates, and embeddings โ exclusive to that tier.
Every exercise includes muscle-group highlighting, equipment/muscle icons, MET values, and safety/goal tags. Compared to GIF- or JPG-based competitor APIs, RepDB images are transparent WebP with no watermarks, so they drop into any app UI without a white box around them.
TestNG
RepDBRepDB's answer:
RepDB is sold as a one-time download, not a metered API โ you own the JSON/SQLite data and WebP images outright, with no rate limits, no per-request billing, and no risk of the vendor cutting off access. It's also the only dataset in this space with EN/DE/ES translations, transparent (alpha-channel) images with no watermark, muscle-group highlighting, safety/goal tags, and looping animations on the higher tier.
RepDB's answer:
RepDB grew out of a consumer workout app its creator was building solo. Sourcing exercise images and data meant either paying for a subscription API with usage caps and no caching rights, or producing everything from scratch. The illustrated, multi-language dataset was built for us first, then split out as its own product once it became clear other indie developers had the same problem and preferred to buy the data outright rather than rent it through an API.
RepDB's answer:
Most alternatives are subscription APIs โ you pay monthly, you're capped on requests, and ExerciseDB's terms of use explicitly forbid caching or storing the data at all, so every image render is a live paid API call. RepDB is the opposite: pay once, download the files, self-host with zero ongoing dependency. It's also the only option offering true DE/ES localization and transparent images instead of a white box behind every exercise.
RepDB's answer:
Solo developers and small teams building fitness or workout-tracking apps (iOS, Android, web) who need licensed exercise images and structured exercise data, but don't want to build their own media pipeline or depend on a rate-limited third-party API.
Based on our record, TestNG seems to be more popular. It has been mentiond 6 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
However, you must note that over-parallelization can cause resource contention and performance issues, so monitor it. Use tools like pytest-monitor, TestNG, and Appium to find your optimal parallel execution configuration. - Source: dev.to / over 1 year ago
Inspired by JUnit, TestNG offers advanced features for complex, large-scale testing scenarios, covering unit, functional, integration, and end-to-end tests. - Source: dev.to / almost 2 years ago
If youโre interested in learning more about TestNG, visit its official website for additional information. - Source: dev.to / almost 2 years ago
Introduction: TestNG is a versatile testing framework that accommodates various testing needs, including unit, functional, and integration testing. It's particularly useful for Java developers looking for a comprehensive solution. - Source: dev.to / almost 2 years ago
Testing tools on the JVM stopped using reflection about twenty years ago, they all use annotations these days (e.g. https://testng.org, https://junit.org). Rust has annotations too, obviously. Source: about 4 years ago
JUnit - JUnit is a simple framework to write repeatable tests.
Arquillian - Arquillian is an open-source testing platform that offers no more container lifecycle, deployment hassles, and mocks.
Cucumber - Cucumber is a BDD tool for specification of application features and user scenarios in plain text.
Testcontainers - Testcontainers is a modern Java library that comes with the exclusive support of Junit tests.
PHPUnit - Application and Data, Build, Test, Deploy, and Testing Frameworks
Mockito - Mocking framework for unit tests in Java.