Devise
Auth0
Okta
OneLogin
Atlassian Crowd
Amazon Cognito
Google Cloud IAM
Ping Identity
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.
Devise RepDBDevise is recommended for Ruby on Rails developers looking for a well-established and comprehensive authentication library. It's suitable for projects of various sizes, from startups to enterprise-level applications, particularly when rapid development with standard authentication features is desired.
RepDB'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, Devise seems to be more popular. It has been mentiond 47 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.
ActiveRubyist is now a Progressive Web App (PWA) with Hotwire-based interactivity. For authentication, I use devise, and for real-time notifications, noticed. Where possible, I lean into default Rails features: for background jobs, I use Solid Queue instead of Sidekiq, keeping everything aligned with the Rails way. - Source: dev.to / about 1 year ago
Assume we use devise for authentication. We need to subscribe user for personal notifications channel. Add this line to app/views/layouts/application/_flash_container.html.erb. - Source: dev.to / over 2 years ago
If you like to know how to implement Devise for user authentication, here's the link- Devise. - Source: dev.to / almost 2 years ago
Use devise gem, which is probably the most famous rails authentication system. - Source: dev.to / almost 2 years ago
IMHO the stateful opaque token approach is simple enough that it can (and often does) get baked into whatever language/framework youโre using to write your app. In addition, the very nature of session tokens is such that the logic for what the token actually means/represents lives in your app, on the server. So, that may be why we donโt see more โopaque session tokenโ standards/libraries out there as an... - Source: Hacker News / about 2 years ago
Auth0 - Auth0 is a program for people to get authentication and authorization services for their own business use.
Okta - Enterprise-grade identity management for all your apps, users & devices
OneLogin - On-demand SSO, directory integration, user provisioning and more
Atlassian Crowd - Crowd is a single sign-on and user identity solution.
Amazon Cognito - Amazon Cognito lets you add user sign-up, sign-in, and access control to your web and mobile apps quickly and easily. It scales to millions of users and supports sign-in with social identity providers and enterprise identity providers via SAML 2.0.
Google Cloud IAM - Google Cloud Identity & Access Management (IAM) lets administrators authorize who can take action on specific resources, giving you full control and visibility to manage cloud resources centrally.