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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 400 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.
NativeScript
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, NativeScript seems to be more popular. It has been mentiond 21 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.
NativeScript is a hybrid mobile app framework that allows developers to build truly native iOS and Android apps using JavaScript, TypeScript, or Angular. Unlike frameworks that rely on WebViews, NativeScript provides direct access to native APIs, ensuring apps perform like native applications. It is ideal for developers who want the convenience of JavaScript while leveraging full native functionality. - Source: dev.to / 7 months ago
NativeScript is a good example of a runtime built specifically for cross-platform native mobile application development built using JavaScript. - Source: dev.to / over 1 year ago
A long time ago, nativescript[1] seemed to be a strong alternative to reactnative. Is that still the case? [1] https://nativescript.org/. - Source: Hacker News / about 2 years ago
I'm curious about this topic as well. I would also add NativeScript[1] in the comparison. [1] https://nativescript.org/. - Source: Hacker News / over 2 years ago
This is not so much the Svelte equivalent of React Native as it is just NativeScript (https://nativescript.org). - Source: Hacker News / over 2 years ago
React Native - A framework for building native apps with React
Ionic - Ionic is a cross-platform mobile development stack for building performant apps on all platforms with open web technologies.
Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript
Onsen UI - HTML5 Hybrid Mobile App UI Framework - work with Angular, React, Vue, Meteor & pure JavaScript. Material & Flat design.
PhoneGap - Easily create apps using the web technologies you know and love: HTML, CSS, and JavaScript.
jQuery Mobile - jQuery Mobile