
UseGravity.App
supastarter
Nextless.js
Nodewood
Divjoy
Volca
Modern MERN
Serverless.page
RepDB
Gravity is a SaaS boilerplate for Node.js & React that enables developers to spin up a new SaaS product in 5 minutes, instead of 5 months.
Save time and money by deploying common SaaS features in minutes, freeing up time and resources to develop value-driven features that customers will pay for.
Gravity contains every SaaS feature you need in a single install:
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.
UseGravity.App
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, UseGravity.App seems to be more popular. It has been mentiond 29 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.
Gravity is a fullstack javascript SaaS starter kit built with Node.js and React.js. - Source: dev.to / almost 2 years ago
What is your main advantage over https://usegravity.app/? - Source: Hacker News / about 2 years ago
Is this a monorepo setup? It looks like one from the graphics. I also think when it comes to these SaaS starter kits its helpful to have visuals of the out of the box look and feel. I would also recommend creating a docs page. For example I've used this a few times https://usegravity.app/ and the thing that sold me on it is the Docs, it gives the feeling that its very robust. - Source: Hacker News / over 2 years ago
Does anyone have experience using the Gravity SaaS boilerplate (https://usegravity.app/) ? Our team is currently evaluating it for an internal expansion project, and we want to assess its entire code base before making the actual purchase. Source: about 3 years ago
Your landing page, messaging, plans and pricing looks like a mix-match of content lifted from other SaaS boilerplates on the market including mine (https://usegravity.app). Source: over 3 years ago
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