Software Alternatives, Accelerators & Startups

UserBob VS RepDB

Compare UserBob VS RepDB and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

UserBob logo UserBob

Provides affordable remote user testing.

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • UserBob Landing page
    Landing page //
    2023-06-23
  • RepDB
    Image date //
    2026-07-21
  • RepDB Landing page
    Landing page //
    2026-07-21
  • RepDB
    Image date //
    2026-07-21

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 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.

RepDB

Website
repdb.co
$ Details
freemium $199.0 / One-off
Platforms
Web Mobile
Release Date
2026 July

UserBob features and specs

  • Cost-Effective Testing
    UserBob provides cost-effective usability testing by leveraging a crowdsourced pool of testers, making it accessible for small businesses and startups.
  • Quick Turnaround
    The platform offers rapid feedback, often delivering results within hours or a few days, allowing for agile iterations and timely improvements.
  • Flexible Test Criteria
    Users can specify targeted demographics and other test criteria to ensure that feedback comes from a relevant audience.
  • Ease of Use
    The interface is user-friendly, allowing non-experts to create and launch usability tests without the need for extensive technical skills.

Possible disadvantages of UserBob

  • Variable Feedback Quality
    The quality and depth of feedback can vary significantly between different testers due to the crowdsourced nature of the service.
  • Limited Feature Set
    Compared to more comprehensive usability testing platforms, UserBob offers a more limited set of features, which might not suit all testing needs.
  • Small Tester Pool
    The pool of testers, while diverse, may not be as extensive or specialized as those offered by larger usability testing platforms.
  • Potential Bias
    There might be unintended bias introduced due to the knowledge and experience level of the crowd testers, which could influence the feedback.

RepDB features and specs

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

UserBob videos

Tutorial for doing UserBob training HIT on mturk.com

More videos:

  • Tutorial - How to do the UserBob training HIT on mturk.com
  • Review - Sample $2 usability test using userbob.com

RepDB videos

No RepDB videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to UserBob and RepDB)
Usability Testing
100 100%
0% 0
Datasets
0 0%
100% 100
User Experience
100 100%
0% 0
Developer Tools
0 0%
100% 100

Questions & Answers

As answered by people managing UserBob 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

Share your experience with using UserBob and RepDB. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, UserBob seems to be more popular. It has been mentiond 5 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.

UserBob mentions (5)

  • Ask HN: Why is there no API for testers on demand?
    I've seen platforms that will review your website and record a video of it. It's not realtime. I think for realtime, always available it would cost more than $100. https://userbob.com/ https://www.userfeel.com/ https://www.fiverr.com/romanruzin/review-your-website-and-record-a-video. - Source: Hacker News / almost 3 years ago
  • As a requester for usability testing can I autocapture browser version?
    If you wanted to contract the usabilty testing out, check out userbob.com, they may be able to collect that info as well. Source: about 4 years ago
  • Top Usability or UI/UX Testing Tools and Tips of 2021
    Userbob.com provides a very affordable remote user testing service. They recruit users to try out your app or website and record a video of their experience. It's similar to usertesting.com at a fraction of the cost. Source: about 5 years ago
  • Requester: Trying to set up user testing with screen recording HIT
    Yes, we see a lot this type of work from https://userbob.com/. Source: about 5 years ago
  • Any online courses with advanced topics on Google Ads and/or Facebook Ads? I want to learn the hard stuff!
    I've used User Bob for affordable video feedback from regular folks. Source: over 5 years ago

RepDB mentions (0)

We have not tracked any mentions of RepDB yet. Tracking of RepDB recommendations started around Jul 2026.

What are some alternatives?

When comparing UserBob and RepDB, you can also consider the following products

UserTesting.com - Usability testing has never been easier. Get videos of real people speaking their thoughts as they use websites, mobile apps, prototypes and more!

Userbrain - Easy, fast, and affordable user testing for websites and prototypes.

UserTest.io - User testing made simple. High-quality, affordable user testing solutions from real users, here in the UK. Improve your usability!

UserZoom - Test, measure, and monitor UX with our cost-effective all-in-one platform. UserZoom is a cloud-based solution for online usability testing.

Validately - Validately is a user feedback platform to test demand and usability on a clickable prototype or live feature.

UsabilityHub - UsabilityHub is a platform for running quick and simple usability tests and design surveys.