Software Alternatives, Accelerators & Startups

Sadblock VS RepDB

Compare Sadblock VS RepDB and see what are their differences

Sadblock logo Sadblock

Block sad/depressing news from your social feeds

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • Sadblock Landing page
    Landing page //
    2019-09-02
  • RepDB Standard exercise dataset
    Standard exercise dataset //
    2026-08-15
  • RepDB Starter tier
    Starter tier //
    2026-08-15

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 512ร—512 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.

Sadblock

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

RepDB

Website
repdb.co
$ Details
freemium $299 / One-off
Platforms
Web Mobile
Release Date
2026 July

Sadblock features and specs

  • Emotion Filter
    Sadblock helps users to filter out content that evokes negative emotions, making social media browsing a more positive experience.
  • Customization
    The extension allows users to customize which emotions or types of content they want to block, giving them control over their browsing experience.
  • User Well-being
    By reducing exposure to negative content, Sadblock can contribute to improved mental health and well-being for users who are sensitive to such content.
  • Easy to Use
    The interface of Sadblock is user-friendly, making it accessible for individuals of all tech literacy levels.

Possible disadvantages of Sadblock

  • Overblocking
    There is a risk that the extension might inadvertently block content that is not negative, limiting exposure to potentially important information.
  • Dependency
    Regular use might create a dependency on the tool for emotional regulation, reducing user's ability to cope with negative content independently.
  • Content Misinterpretation
    The algorithm may not always accurately interpret the emotional tone of content, leading to incorrect blocking or allowing of certain posts.
  • Platform Compatibility
    The extension may not work consistently across all social media platforms, limiting its effectiveness for users who engage with multiple services.

RepDB features and specs

  • WebP Format Benefits
    start+peak exercise images
  • JSON
    relations, metadata, equipment
  • Transparency
    transparent background
  • Animations
    Animated loops in paid tier

Category Popularity

0-100% (relative to Sadblock and RepDB)
Productivity
100 100%
0% 0
Health And Fitness
0 0%
100% 100
Chrome Extensions
100 100%
0% 0
Static Assets
0 0%
100% 100

Questions & Answers

As answered by people managing Sadblock and RepDB.

What makes your product unique?

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.

What's the story behind your product?

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.

Why should a person choose your product over its competitors?

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.

How would you describe the primary audience of your product?

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.

User comments

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