Software Alternatives, Accelerators & Startups

DummyAPI.io VS RepDB

Compare DummyAPI.io VS RepDB and see what are their differences

DummyAPI.io logo DummyAPI.io

Free rest api full of test data. Over 100 user, 1000+ posts and comments

RepDB logo RepDB

Exercise dataset for fitness apps: transparent background, animations, no subscription
Visit Website
  • DummyAPI.io Landing page
    Landing page //
    2023-02-01
  • 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.

DummyAPI.io

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

RepDB

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

DummyAPI.io features and specs

  • Easy to Use
    DummyAPI.io is designed to be user-friendly, allowing developers to easily generate fake data for testing and development purposes without needing complex configurations.
  • Variety of Data
    Offers a wide range of dummy data, including users, posts, comments, and more, which can fit various testing requirements and scenarios.
  • Customizable Requests
    Provides options to customize the requests, such as limiting the number of results or filtering by specific criteria, enabling more tailored data retrieval.
  • Free Tier
    DummyAPI.io offers a free tier, making it accessible for developers and small projects to use without incurring costs.
  • API Documentation
    Comprehensive and clear API documentation is available, which helps developers understand and integrate the API efficiently.

Possible disadvantages of DummyAPI.io

  • Rate Limits
    The API has rate limits that restrict the number of requests that can be made within a certain timeframe, which might be constraining for larger projects.
  • Dependency on External Service
    Relying on DummyAPI.io means depending on an external service for data generation, which could be a risk if the service experiences downtime or becomes unavailable.
  • Limited Realism
    While it provides a variety of data, the generated information might not fully replicate the complexities and nuances of real-world data in certain applications.
  • Data Consistency
    Since the data is generated randomly, maintaining data consistency across multiple requests or test sessions can be challenging.
  • Scalability Constraints
    For very large-scale applications or those requiring extensive data sets, DummyAPI.io might not provide the scalability needed due to its performance limitations.

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 DummyAPI.io and RepDB)
Dummy Data
100 100%
0% 0
Datasets
0 0%
100% 100
Developer Tools
66 66%
34% 34
Testing
100 100%
0% 0

Questions & Answers

As answered by people managing DummyAPI.io 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 DummyAPI.io 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, DummyAPI.io seems to be more popular. It has been mentiond 2 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.

DummyAPI.io mentions (2)

  • How to Master Office Scripts
    Async function main(workbook: ExcelScript.Workbook) { let iRows = 0; let aTemp=[]=[]; const myHeaders = new Headers({'app-id': '############'}); const myInit = { method: 'GET', headers: myHeaders }; let fetchResult = await fetch('https://dummyapi.io/data/v1/user?limit=10',myInit); let oData: dataType = await fetchResult.json(); let json: JSONData[] = oData.data; ... - Source: dev.to / almost 4 years ago
  • NoCodeAPI Google Sheet Tutorial using React and Chakra UI
    Note: I converted JSON data obtained from DummyAPI to Google sheets using this tutorial. (I know I could have directly imported data using the NoCodeAPI import feature but since the data was nested and not working without the Dummy API header, so I had to go through this and then import the .xlsx file to google sheets manually xD. You learn something new every day.). - Source: dev.to / over 4 years ago

RepDB mentions (0)

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

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